5v4 vs 5y3

5v4 vs 5y3. If you want slow start, there are a couple of 5Y3 variants that are indirectly heated - the 6087 and the 6106. aqui os testes com ela. I'd probably drop a 5V4 in without much worry and get the softstart, but an email to the manufacturer is a smart move. Don't go over 40 uf Re: Alternatives for 5Y3 rectifier? depends on how hot things are already. General discussion area for tube amps. Vacuum rectifiers with cathode sleeves exhibit slow B+ rail rise. E. Logged it has the chunkier plates with copper holes of the sylvania big bottle 5AR4 than the more typical flat plates of the 5V4 (at least the ones I've seen). "I think the 5V4 will be fine. The 5y3 has a voltage drop of 60mv, the 5v3 has a voltage drop of only 44 mv so there should be more headroom. 0 Edit - sorry, I can't get this chart to line up and can't delete the post. This military spec Chatham 5R4WGA rectifier tube has black plates, bottom getters, and a rugged ceramic base. amptramp. Your friendly trusted tube store with fast worldwide shipping. Check the tubes--which should be an 83 and a 5Y3. The original Japanese design used SS diodes, which could cope 5Y3 02 OFF 270K 500K REVERB CONT ROL 470K sso-3 ON NEON 2 AMP 270K 220K 470K 500K 270( 470K 12AX7 00K TONE 500K 2200 220K 12AX7 6 270K 47 K V4 12AX7 e Supro Model S6622 470K 1K 4 8 14V 117VAA VI V 3 V4 VS . The Mullard 5V4G is a full wave rectifier with a maximum rectified output of 175 mA. www. buglegirl I Want To Be The Girl With The Most Cake. and of course the voltages will be closer to the original 18 watt. IIRC, a 5Y3 passes ~125ma of current and a 5AR4 passes ~225ma. I like octal rectifiers better because you can choose between a few different ones and all will provide a different 5Y3 – 60 volts @ 125 mA; 5U4GB – 50 volts @ 275 mA; 5U4 – 44 volts @ 225 mA; 5V4 – 25 volts @ 175 mA; 5AR4 – 17 volts @ 225 mA; When one initially hits a loud note or chord, with a tube rectifier, there is voltage sag, in some cases, a LOT of sags. Rectifiers that I’ve tried: 5Y3, 5U4, 5U4GB, 5V4, 5V4GA, 5AR4 (multiple manufacturers of each) Front-end (9 pin miniature socket) tubes that I’ve tried: 6CG7, 6N1P-EB, 6DJ8, 6N2P-EV, E88CC My results are irrelevant to anyone else. In these cases the 5Y3 is running much closer, but still below, it's current supplying capacity. I've experimented with replacing the 5AR4 in my Lightning clone with a 5Y3 to reduce the current through the circuit (didn't care for the results) but going the other direction and increasing the current would be asking for trouble. of 5V4-G Data sheet links: Dave Cigna''s Pages (DuncanAmps mirror) 5V4GA: html: Duncan''s Amp Pages: Vade Mecum s. JPG (543. I never compared 5V4 by measurement, but I guarantee it will have a greater drop than 5AR4. qrz. Octal, IO) K8A, USA 1935 and Power-supply shown. Will the first cap need to be changed to 10uf? EG 10uf-choke_16uf? I use this site as a reference: 5V4, Tube 5V4; Röhre 5V4 (5V4) Comment. What if I'm using a choke pi filter? I want to do 16uf-choke_16uf. 5y3 tubes : Page 1 of 1 [ 20 posts ] Previous topic | Next topic : Author Message; frenchy Post subject: 5u4 vs. 2,078 . The data sheets says that typical value here is 10uf for capacitive input. The only real advantage of the EZ81 is the separate cathode. com 5Y3S max 93, 0 max 33,3 max 79, 0 Double anoDe rectifying tube Base: OCTAL uf = 5 V if = 2 a Typical Characteristics: Capacitor Input Using 5V4, 5AR4 or the solid state rectifier I get clean clear sound output from both channels and the sound is evenly balanced between the two channels. The English made 5Z4G's still sound better. I even have a Bendix 6106, the grand daddy of all 5Y3's built like a brick outhouse. For low voltage drop, as well as the 5AR4, there are the 5V4 and 5Z4 tubes. They produce a similar voltage drop to 5U4 rectifiers but require only 2 amps of heater/filament current from the power transformer as opposed to 3 amps for a 5U4. The 5Y3GT is a directly heated full wave rectifier, with inverted v's of coated tape as filaments. It is NOS though. 2011-09-23 3:59 pm #3 2011-09-23 3:59 pm #3 5Z4 is another one, but a number of designers have used damper tubes in pairs. Plus different current draws for the heaters - which can overheat power transformers. Unbeatable prices on thousands of guaranteed vacuum tubes for sale, vintage NOS hi-fi audio tubes, radio tubes, ham and industrial ready to ship. 8 5U4GB 275 1550 450 375 50 3. ) Are there any other rectifier type tubes commonly used, I thought I'd read posts where someone uses a Silverface amps often specified this tube in the schematic, even though you normally find GZ34/5AR4's in the early ones. ) Logged FYL. Delivery times for other countries and shipping methods can be found on our shipping information page. 5A for the 2A3) to The best NOS and like new rectifier tubes Nice military grade tube. little more clean headroom and overall volume, more open top and tighter bottom end. The 5Z4 also comes in the ST and GT styles We would like to show you a description here but the site won’t allow us. First, my tube-rolling is based on an Inspire SEP amp, whereas the OP is using a VRD amp. I also keep this in my first aid kit when I'm playing out. I've been looking at the specs for the 5Y3 and 5Y4 rectifiers and I believe they can be used in place of each other electrically. The Champ returns. 2007-04-12 2:37 am #1 2007-04-12 2:37 am #1 Playing around this evening with my No! 5Z3 3. 2015-02-19 8:31 am #3 2015-02-19 8:31 am #3 i have wired my psu to use either of the two at any given time, yes it can be done and no need 5R4 rectifiers (any suffix, GY, GA, GB, GYB, etc) are pin compatible with 5Y3, 5U4, 5V4 and 5AR4/GZ34 rectifiers. Anyway, left as is for now. Check out our guide on substitutes & replacing these hard to find tubes. I also pulled the vintage GE 5V4 out of my '63 I found that a 5Y3 dropped the voltage too much in my '65 PR, I think a 5R4 is a better choice if the 5V4 doesn't do it for you. 2011-09-24 12:14 am #4 2011-09-24 12:14 am #4 GZ33, GZ37 . A 5AR4 SHOULD supply 250 mA a 5Y3 supplies 125mA. 00 More likely a 5y3 or 5V4; in that case you should consider reducing the input capacitor (first one after the rectifier). Stick with NOS tubes such as the JAN-Philips 5Y3WGTA. The YJR converts your amp's vacuum tube rectifier to a solid state rectifier, reducing tube sag for a tighter sound and feel. A side-effect of the voltage drop is the sag it Rectifier Interchangeability and it's relation to Clean Headroom. I'm using 2 of the JJ 5Y3 in my WrightSound 3. 20GHz is newer than Intel Xeon E5-2696 v4 @ 2. https://youtu. com or this: Solid State Rectifier - For 5AR4, 5U4, JJ 5Y3 vacuum tubes for sale. 0: Amps: MAXIMUM RATINGS Full-Wave Rectifier Condenser-Input Filter. Aqui algumas dicas de bancada para determinar o determinar o funcionam 5v4 rectifier and 5y3 What is rectifier ? | Types and Circuit diagram. the 5U4 were as follows. This octal based solid state rectifier is a cost effective replacement for any of the following tubes: 5AR4 / GZ34, 5Y3, 5U4G / 5U4GB, 5R4 / 5V4 / 5Z4 Not only is this an inexpensive alternative, but this solid state rectifier will firm up your low end. Interestingly enough, there's this tube which states it can be used for both purposes. By Leading Number; Clearance - Bargains - Scratch and Our 5Y3 / 5Z3 Rectifier Tubes have a reliable response with a average sag & longer than normal life expectancy and offer a great dynamic response sound. Title: Radiomarelli 9F95 Created Date: 8/9/2013 3:19:34 PM Keywords () I would like to know what sonic changes others may have found by substituting either 5V4G or 5Y3 in place of the 5AR4 diode tube. On-line sales Orders are payable by emt Shipping to anywhere within Canada +$25. Let’s start with the 5V4, an older configuration of the GZ32 I have read that a modern Sovetek 5Y3 rec tube is not a true 5Y3 and actually increases voltage. Joined Aug 8, 2003 Messages 1,005. Both CPUs operates at simliar power levels (TDP). Drop-in Equivalents & Substitutes: 5R4, 5R4GA, 5R4GB, 5R4GY, 5R4WGA, 5R4WGT, 5R4G A válvula retificadora 5y3 se assemelha a dois diodos atuais em sua construção interna. The equivalent to 274B are the 5R4-GY and the 5V4 and aren't interchangeable with 5U4Gs. value of 10uF for the input capacitor. OK 5Y3's they supply the least amount of Voltage and Currant. 0 5R4 GYB 250 3100 900 362 53 2. If the rectifier tube fails, I can get through the night. Tube tests as I have several components that it explicitly stated that I can use a variety of rectifiers in the same family: 5AR4, 5U4, 5Y4, 5Y3 etc. 5U4 vs. For little more volume, tighter bass and a firmer feel I go with There is a difference, the 5Y3 or 5U4 or 5R4, has a directly heated cathode. Rectifier A rectifier is a device which convert AC( alternating current) to DC(direct current). The B+ voltage will be higher with a solid state rectifier than with a tube, but for quick tests it's simpler to have one SS rectifier than 4 tubes. • Adds no noise to the amp. I got good suggestions about that, for which I thank everyone. Both of these things will contribute to an overall cleaner tone, or more headroom. Cheers, Roger. 5V4 – 25 volts @ 175 mA. Various brands available. The honest-to-gosh 5AR4 was designed using damper diode plates -- which is I have for sale this excellent sounding, newly built, single ended 6L6 / 6V6 stereo amp. The difference I'm seeing is the pin-outs for the plates and the filament. BTW, the original use for 6106s was in Nike SAM systems. Displaying products 1 - 13 of 13 results: Show: Sort: Chatham 5R4WGA - ceramic base "potato masher" Price: $49. If that's what you're looking for, give it a try. It will be a bit taller but should fit, especially if you use a 5Y3GT as a temporary The 5Z4 data sheet says DC Output Current is 125mA max. 5 to 2. Most of them are used tubes of unknown origin. Inexpensive Russian 5Y3GTs are readily available but we have found they raise the plate voltage considerably and therefore do not recommend them in these vintage amps. A válvula retificadora 5y3 se assemelha a dois diodos atuais em sua construção interna. Joined 2004. If the trimmers Purchase 5V4 vacuum tubes online, in stock and ready to ship! Find reviews, data sheets and specs to upgrade your tube amplifier. It actually allows the amp to idle in standby at a lower voltage. 5R4 and 5V4 types may be used in an emergency. Any 5Y3 type is acceptable. The rectifier can be a 5AR4, a 5U4, in some cases 5R4's and 274B's can be used. Search. 5V AC or DC (designed for up to 2. With an indirectly heated rectifier (5AR4, 5V4), use the cathode pin as the output and ignore the center tap. Either way, the difference between a 5V4 and a 5Y3 is relatively small, (GZ34) versus a 5Y3, then yes, most folks would notice that difference. Feb 17, 2012 #6 Hiya, And you can find 5R4 in smexy ST bottle styles. 0 5Y3/G/GA 125 1400 350 365 60 2. Changing the B+ voltage in a tube circuit will also change the various operating parameters in the The main difference is that the I surge ratings are different (440mA; 5Y3 400mA; 5Y4). Feb 8, 2013 #1 Hi all New amp can use any of these. They Vintage 5Y3 / 5U4G / GA / GB + 5V4 + 5Y4 + 5Z3 + 5R4 Assorted Rectifier Lot Deal Photo. JJ 5Y3 vacuum tubes for sale. The maximum reservoir capacitance is 32 µF and minimum series resistance is 100 Ohms. The great thing about these rec tubes is that NOS versions go for a lot less than vintage 5AR4's. As the note or chord starts to decay, the voltage then builds, and what you have in essence, is a built-in Rectifier tubes drop the B+ voltage by different amounts. Re: Substituting 5U4GB for GZ34 rectifier tube. I'd think a 5V4 rectifier or new Sovtek 5Y3 would give you voltages in the LiteIIb target range. Post Cancel. These tubes allow more of a delay before the turn on. 20V for the 5Z4). This tube’s solid construction and thick glass envelope offer high reliability. I'm designing a power supply 460-0-460 w/ 5V4 rectifier tube. Trimmer Condensers Two trimmer condensers are provided for the main tuning condenser. The Blackburn, UK factory code is etched in the glass. Joined 2007. Post by azatplayer » Thu Jan 12, 2012 12:28 pm. Categories Common. You may have noticed when swapping the two in the amp. 156. Reissue Champs are usually based on the 5F1 circuits. Heaters allow for anything from 2. Should drop voltages by ~20v. Categories. Tube tests as new with very low noise. 33) Posted by dvb on 2013-07-12, 23:17:13 (96. I use the 5V4 to drop voltage it is 2A and fits inbetween the 5AR4 and 5U4G for voltage drop. the tung-sol datasheet The voltages in the amp are blackface to. This uses a smaller transformer set Let’s start with the 5V4, an older configuration of the GZ32, first introduced in 1937 and to my mind better sounding, no doubt due to it's much more rigid electrode structure. The Sovtek actually sounds (sounded) better than the NOS Amperex, open detailed and bright in a good way vs. Mullard CV2748 Re: Read the specs carefully - J. I am suspecting that the lower voltages in the 6G2 are a large part of that almost tweed/Marshall thing that a 6G2 does. Last edited: 2022-10-07 5:05 am. (link to the FireFly Device page) What it does: • Plugs into your existing rectifier socket. If you've got an octal socket and 5v heater then a common 5Y3, which uses only 2A of heater current, would be a better choice. Octal. I have also I have GZ34, GZ37 (expensive), 5U4, & 5Y3 (for small amps) as well as a SS plug. 5u4 vs. 5Y3 Vs. A 5Z4 or 5V4 will give more voltage, Bendix 6106 will be lower. <BR>Will any problems be encountered when replacing a 5Y3 with a 5V4? I have an ample supply of 5V4Gs, but only a few 5Y3G's and it would mainly be for cosmetic (and monetary) purposes. UX4 socket out and Octal socket in (appropriately wired, of course) and you are good to go. 5Z4 and 5Y3 are not equivalent, but they are similar and can often substitute for each other when warm-up time is not an issue. 5V4 is rated for less current draw than 5AR4. Magical little Look inside the tester. I will have to put in a 5Y3 to see if they go down. I find the voltage levels very interesting in the comparisons between these two amps. All signal tubes, 12AU7 and 12AX7 are Tungsram. and they are rated for different current handling. The Intel Xeon E5-2699 v4 @ 2. Thanks all. Aqui algumas dicas de bancada para determinar o determinar o funcionam Tube 5Z4 or Röhre 5Z4 ID2219, Full-Wave Vacuum Rectifier, Octal (Int. Mark. 99. Intel Xeon E5-2696 v4 vs Xeon E5-2699 v4. If you have a vintage amp that's running high B+ & plate voltage at today's 120v+ line voltage and you don't want to use a buck transformer or variac (to bring the line voltage down to 117) you can use these to knock You can use 5Y3's in the Dared, but IMO, and I've tried a lot of them they don't sound quite as good as a proper 5Z4G/GZ30. This makes them good substitutes for the other rectifier types when different output voltage is desired. Our 5Y3 / 5Z3 Domestic US shipments between 1-7. In the world of rectifiers, the 5Y3 and GZ34 (5AR4) sit at the two extremes in the pin-based 5R4 / 5V4 / 5Z4 tubes; 5U4G / 5U4GB tubes; 5Y3 tubes; 6080 / 6AS7 / 5998 / 421A; 6085 / E80CC; 6267 / EF86 tubes; 6550 / KT88 / KT90 / KT120 tubes; 6BQ5 This indirectly-heated rectifier should be considered an upgrade for a 5Y3 tube in most circuits. I wouldn't make that swap - save it for when you get your hands on an amp that's designed for May I safely use a 5V4 rectifier in place of a 5Y3 with no mods, as I've read in a book? This swap was suggested to cure the HV spike stress in 5Y3-equipped amps without standby switch. Carefully More likely a 5y3 or 5V4; in that case you should consider reducing the input capacitor (first one after the rectifier). DO NOT use GZ34/5AR4 , or 5U4 . Read more about NOS JAN Sylvania 5Y3GTA (Brown and black Base); NOS Tung Sol 5Y3GT. Guitar amp users for example, say that the Sovtek 5Y3 tube does NOT drop nearly as much voltage as a NOS 5Y3? In a 6V6 Fender Champ, that run some pretty high voltages anyway, this could lead to early power tube failure. . Triple triode tubes like 6C10, 6K11, 6AC10, 6D10 etc are hard to find and often need to be replaced with equivalents. The 5V4 dropped 30 volts compared to the 5AR4, but I only have one of them. I use the 5V4 most of the time, but for practicing at home I sometimes use the 5R4. The 5V4 is an octal version of the four pin 83-V tube. He also collected electronic testing devices and had quite an extensive collection of parts & pieces. So when you throw the power, most the power/current hits the B+ supply input caps a bit You might like a 5Y3G for appearance sake, but I don't think there will much difference due to rectifier other than that due to change in output voltage. With the supplied 6L6 and 5v4 the output will be about 7 watts. Having a preamp with a tube rectifier spec 5AR4 / GZ34 I do notice a difference in sound quality between the stock Sovtek and a NOS Amperex. 5, where they are working extremely well; George Wright recommended against the Sovtek (Russian) 5Y3 bec . If you have too much sag in your low end, then Operating system: Windows 95, Windows 98, Windows 2000 or Windows NT. I believe there is a black base version and several variations of this tube out there. Level 4; Bán bóng 811 China 6p30 Nga 5v4 usa 5z3 usa 5y3 usa, Philip 6x4 6ax4 Ez80 Ez81 8080 . rogb Posts: 1089 Joined: Fri Apr 02, 2010 9:56 am Location: London, England. It If we allow for different rectifiers too (GZ34 vs 274B vs 5R4 vs 5V4 vs 5U4 vs 5Y3) and variations in series resistance we have a lot of variation for different output Valves. : Memory: As per minimum requirement for operating system. Because the plate voltage changes, you should check bias after swapping rectifiers. If you have a 5V4 or a 5AR4 or a 6AX5, these tubes have an indirectly heated cathode. TC Tubes specializes in precision testing and matching of vintage and new production vacuum tubes for guitar & bass players, audiophiles, and DIY tube audio enthusiasts. The nice thing about the octal rectifiers is that you can experiment with them as long your first filter cap isn't too big and the PT has the heater current. The 5Y3/2x6V6 combination was common in vintage phonograph amps. Today, these are most often seen in pairs as a replacement option for the single firmer I've read that a 5V4 rectifier would help. w5jag. of DC output VS the 5Y3's 150 ma. Found 200 records in Search of Tubes Asylum. 112) Is a new production 5y3 that is directly heated. One solution for this is to add 100 ohm/10W resistors in series with each 5V4 plate, or add a bit of Supposedly the 5V4 drops the voltage vs the 5Y3GT which provides the amp more clean headroom Nope, the 5V4 will only drop around 15 volts in your amp, and the 5Y3 Typical Rectifier Voltage Drops. Thousands of valves in stock. My concern is that the currently made Russian and www. All our stock is held in Australia for fast The difference lies in the basing/socket, UX4 vs. 2022-10-07 5:05 am #14 2022-10 Dighton 𝐕𝐬 Deerfield 𝐇𝐢𝐠𝐡 𝐒𝐜𝐡𝐨𝐨𝐥 🏈𝐅𝐨𝐨𝐭𝐛𝐚𝐥𝐥🏈 𝟐𝟎𝟐𝟒 🅰️𝐇𝐨𝐦𝐞 𝐓𝐞𝐚𝐦: Dighton (KS) 🅱 I'm sure this has been discussed before but I couldn't find the threads. <P>Tom And the amount of voltage drop for a given amount of current draw(sag) is also different than an EZ81. A 5Y3 is also the same current load, should drop things by ~40v vs a 5AR4. 00 or more! Best regards, stay safe and healthy with god's blessings!. Silverface amps often specified this tube in the schematic, even though you normally find GZ34/5AR4's in the early ones. 5Y3 vs EZ81. Filament draw is 3 amps. Joined Dec 9, 2007 Posts 1,097 Location phoenix. Higher voltages mean more headroom and tighter feel. I tried it for a few I like 5V4's in EL-84/EL34 amps especially for smooth BLUES tones. It had Fender brander, coin based 6v6 power For standard tone I go with RCA 6v6's and a 5y3 recto. 5V4 and 5Y3 are for equipment drawing 100-120 ma max, and 5U4 and 5AR4 are for current needs of 225-250 MA. But the 5f2 has a 32uF cap there (or 2x16uF). I am planning my first build and have a rectifier question. Inexpensive Russian 5Y3GT s are readily available but we have found they raise the plate voltage considerably and therefore do not recommend them in these vintage amps. There is very little delay with these types of tubes. Mar 1, 2004 #3 Bluesbubba Active member. difference between the output of the three ranges with the dial set at “100” should be within 1 db, preferably less. 2014-06-28 8:48 pm #3 2014-06-28 8:48 pm #3 Another thing to watch out for is where the B+ is taken from. Tube Amp Sag Chapter 4" Solid State vs Tube Rectifiers. How to play the 433 formation in soccer. Personally, I have a Hewlett-Packard 200B audio oscillator where the 5Z4 has been replaced with a 5Y3GT, and though I haven't tested it yet, I'm guessing it didn't affect operation too much, or This is a very popular rectifier to use in place of 5U4, 5AR4, 5Y3, 5V4 and many others. To me it works well with single coil pickup guitars. Both of these tubes are rectifier tubes and have two sections to test. Member. Joined 2002. I believe that the pin out numbers will be different because of how the cathode is wired up in the 5V4, but the pins used are actually the same. com The 5AR4 will increase the B+ voltage some, and it's a much stiffer rectifier than a 5Y3. I put the RCA 7025 in it and was surprised to hear a real difference. A NOS Mullard(Blackburn It's a variation on the 5Y3 theme that is constructed with a cathode sleeve. You can usually pick up a filament xfrmr for cheap. A 5AR4 bumps it up to 360v or more. TonyTecson. So can/should I use the 5v4 in a (homebrew) 5f2? How critical is it? I am not using any NOS 5v4, just current production stuff. The plate voltage ends up at 303v or close to that. The 5V4 tube comes in the older ST style "G" glass and in the newer "GT" style glass. It is a non linear, unidirectional device. The 5V4 tube I have an SEP amp that can accept a wide range of rectifiers (5Y3, 5U4, 5V4, 5AR4) depending on the output tube (6V6, 6L6, 6L6GC, KT66, EL34, KT88, KT150), and I was looking for an easy way to boost B+ without replacing the PT Amp calls for 5Y3,, but 5V4 seems to gain almost 30VDC without any extra heater current Are there any The larger the voltage drop = more sag. Just watch the first cap size, 5AR4 is rated to max of 60, I think the other two are rated for 10? Depending on particulars you can get away with more but it won't help the life of the tube. It's a little '50's PA head I picked up Use a 5V4, same heater current load as the 5AR4. 5Z3 58V drop, but at 225mA (versus 60V at lighter load current of 125mA 5Y3); slighty more B+ volts with 5Z3 than 5Y3. The 5Y3 is a "instant on" (no warm up time) rectifier from being directly heated. The JJ 5Y3S will work in any 5Y3 position. That's on-par with typical operation of a 5Y3GT (page 2). Both tubes test as new. ru: 5V4G: Brans Vademecum GZ32: MK buizen handboek: Frank Philipse (Wildcat mirror - Jörg Jan Münter) 5V4G: 5V4G. We carry everything from NOS RCA 6L6GC black plates to JJ 12AX7s. Offers are valid as long as stocks last. Old The other rectifiers listed in this thread, 5Y3, 5V4, 5AR4/GZ34 are totally different than the 6CA4. My guess is it is rated at the higher compliance but it's still a little weird, IMHO. All 6 Volt; Here is how to build your own version of the FireFly 5Y3-FF rectifier. GZ32 - 5V4 - 5V3 - 5AU4; GZ33 - GZ34 - 5AR4; 5U4 - 5R4 - 5Z3 - 5X4b - 274; 5Y3 - VT-197A; Type 80 (Antique) Type 83 for Hickok Testers; 6 Volt . Here's the list of the most common guitar amp rectifiers in order of most to least clean headroom (highest to lowest For circuits that use a 5Y3, there are a few more options available for substitution. They also have a slow startup which would be nice since this amp does not have a standby, and they supposedly run alot cooler then a 5Y3 when swapped, which Tube 5Y3 or Röhre 5Y3 ID3114, Full-Wave Vacuum Rectifier, Octal (Int. Tubes with great differences between the two RCA Type 5Y3GT FULL-WAVE HIGH-VACUUM RECTIFIER. But I do not think they will go down that much. Bulb: T-9: Base: Small Shell Octal: Basing: 5T: Mounting Position: Vertical preferred. Carrier Bag Man. Member . i have a custom built 300B power amp based on the Luxman MQ-300. I have rotated RCA cleartops and BB's and still go back to the Tungsgram tubes, although I recently aquired some 12AU7 Slyvaina How to play the 4-3-3 formation: A guide for coachesHow to play the 433 formation in soccer Build Up Play GK plus 5v4 vs 433 INVERTED WINGBACKSIn today’s vid Find many great new & used options and get the best deals for Solitron Devices 1N2389 REPLACEMENT for 5V4 5U4 5W4 5Y3 5Z4 circa 6703 at the best online prices at eBay! Free shipping for many products! This octal based solid state rectifier is a cost effective replacement for any of the following tubes: 5AR4 / GZ34, 5Y3, 5U4G / 5U4GB, 5R4 / 5V4 / 5Z4 Not only is this an inexpensive alternative, but this solid state rectifier will firm up your low end. That's using an NOS 5Y3. Last edited: Feb 17, 2012. The 5V4 sag almost identically as a GZ34, the 5R4 a bit more. Speaking, all rectifier tubes function as unidirectional valves which, together with a power transformer, transform AC (alternating current) to DC (direct current). 2022-10-07 5:05 am #14 2022-10 I never compared 5V4 by measurement, but I guarantee it will have a greater drop than 5AR4. 00 Free shipping on tube orders of $250. The reason I say EZ81's are scarce is because I have thousands of tubes from a lifetime of collecting, and hundreds of power rectifier tubes including (from memory) 5U4, 5AS4, 5Y3, 5Y4, 5AR4, 5V4, 80, 6X4, 6X5, 6W4, 6AU4, 6AX4, 6DW4, 6BL4, 816, 866, 872B, 3B28 and the list goes on, but no bloody EZ81's. They will also raise your plate (B+) voltage by about 10-20% so make sure your filter caps are in good condition before fitting this rectifier. cathode sleeve). I've built several amps where I've used the 5AR4 and 5V4 interchangeably. Find a copy of Vacuum Tube Valley and read the article/survey of different rectifier tubes. 0A filament). where the 5AR4/GZ34 takes a brief time for the filaments to start glowing. All the CPUs in this comparison belong in the Server CPU High Resolution. I'm sure this has been discussed before but I couldn't find the threads. Categories Product Article number Download Link FW version Standard CPUs: CPU 1211C: CPU 1211C DC/DC/DC: 6ES7211-1AE40-0XB0 107247170 : CPU 1211C AC/DC/Rly: 6ES7211-1BE40-0XB0 Brand: Super Silvertone x1, GE x3, Tung-Sol x1, RCA x1 Number: 5y4 x4, 5y3, 5v4, Condition: Used ~ very clean!!! These Radio Tubes come from a gentleman who repaired, refurbished and restored vintage floor model radios. It's PIV is 1400 just like the 5Y3 and it's good for 175 ma. The 5U4GB is a directly heated dual diode. Peak Inverse Voltage: electron Tube Data sheets - Type index. Eli Duttman. the 5U4GB. 3. Posted: Mar Thu 27, 2003 11:16 pm . Carefully remove the tubes and test them on another tube tester. For circuits that use a 5Y3, there are a few more options available for substitution. The problem occurs in the right channel when I use 5Y3 or 5W4 rectifiers. 0A, Drop : 60V @ 125ma Directly Heated Cathode: Higher Current Output cap : 40uF typ. E. Joined 2009. Other than that, a 5AR4 is overkill for a Champ. Joined 2003. It has all new capacitors, 2 expensive PANASONIC More likely a 5y3 or 5V4; in that case you should consider reducing the input capacitor (first one after the rectifier). If you were planning on a 6L6 swap, then a rectifier swap might be worthwhile, but I'd just stick to a 5Y3 for stock. The closest octal is The amp when using these provided tubes, USA made 6V6GT, an RCA 5Y3 rectifier, USA made 12AT7 has a power output of about 5 watts per channel. I would like to know what sonic changes others may have found by substituting either 5V4G or 5Y3 in place of the 5AR4 diode tube. An electrical current can only flow in one direction Read more. A 5V4 is tighter than a EZ81 (close but not exactly the same, but once again you may prefer that sound Bán bóng 811 China 6p30 Nga 5v4 usa 5z3 usa 5y3 usa, Philip 6x4 6ax4 Ez80 Ez81 8080 . The 5R4 can handle high plate voltage and is one of the beefier rectifiers. • Provides “Sag” when the amp is pushed. Steve 2nd: Can a 5Y3 be a substitute for a GZ34/5AR4? I pulled out a nice G. It has black plates and dual bottom getters with lots of flashing. Permalink. 5 amps for like 10 bucks on fleabay. According to this page, the 5V4 is recommended by some guides as a replacement for the 5Z4, with the drop being similar (25V for the 5V4 vs. jj-electronic. and one should be able to read "between the lines". So , unless the extra B+ will take your amp over the limit you are good. What should I expect from a 5V4 instead of a 5Y3 in this type of circuit, electrically speaking? Is it a safe substitution? A simple set of measurements of the performance of a 75 watt, KT88/6550 vacuum tube power amplifier measuring idle plate voltage, plate voltage under full lo May I safely use a 5V4 rectifier in place of a 5Y3 with no mods, as I've read in a book? This swap was suggested to cure the HV spike stress in 5Y3-equipped amps without The 5V4 is closer to a 5AR4 but drops 10-20 volts more in a typical amp. There is an option to make a lower powered amp with 6V6GT output tubes, in which case a 5Y3 can be used. Thread starter w5jag; Start date 2007-04-12 2:37 am; Status This old topic is closed. Moderators: pompeiisneaks, Colossal. The draw of 4 EL-84's is typically 120 mA at idle so NO room is left for any other tubes in the amp. B 10:42:13 12/14/03 (0) In Reply to: Read the specs carefully posted by Paul Joppa on December 13, 2003 at 10:33:00: Hi Paul. 真空管アンプを自作する際のまもるポイント、とくに電源回路についておa話をします。オーディオについて動画をYouTubeにアップしています。他 I prefer octal rectifiers because it's easier to play with voltages by subbing in a 5Y3,5V4,5AR4,5R4,5U4 to get what you want to hear from the amp. C. The max. 2008 Any 5Y3 type is acceptable. This is a Mil Spec Ken Rad JAN CKR 5Y3GT VT-197A tube It was just tested on an Amplitrex AT1000 digital tube The spec for this tube . 6 posts • Page 1 of 1. I try each one in any build w/ a recto socket and there's no telling which one will sound best. As a plus, the 5R4 only pulls 2 amps of filament current, which will be good for your power transformer vs the 5U4. If you want to reopen this topic, contact a moderator using the "Report Post" button. be/kvxZLUx6d9M #vintagelabsilviopinheiro #PU2SRZ Any 5Y3 type is acceptable. #433formation #soccertactics #soccertraining #builduppplay #invertedwingbacks #soccerdrills #defensivethird #footballtactics #soccercoach 5Y3 vs 5Y4 Rectifier Tube. phsyconoodler wrote:I've built a few 18 watters with Hammond 270FX PT's and a 5Y3. Vamos desmontar e investigar as partes de uma válvula retificadora 5y3. That means they need their own 5V filament secondary You can not power input/driver or output tube filaments on the same 5V You should have no problems except. I have gotten 5 and 6. I appreciate the advice about getting a vintage 5Y3, and probably will eventually, but just to satisfy my own curiosity I picked up a modern JJ 5Y3S. 5V4 175 1500 375 400 25 2. tubes for today's test are used so result might be a little different if we use new tubes. To find out if you can use you trans for the ez81 add up the filament amperage from the tubes used in the zenith. Feb 8, 2013 #2 I like 5V4's in EL-84/EL34 amps especially for smooth BLUES tones. Any benefit of rolling rectifier tube? Mike . The current capacity of the 5ar4 is a little more than the 5v4 so that is a bonus. It has all new capacitors, 2 expensive PANASONIC tubes for today's test are used so result might be a little different if we use new tubes. 5Y3 Rectifier Tubes; 6CA4 / EZ81 Tubes; 6X4 Tubes; Other Rectifier Tubes | Other Tubes . The Peak Inverse Voltage rating of the 5Z4 (1100 volts) is lower than the 5Y3's rating of 1400 volts, so it's less-capable in this area. This is because the tube chart erroneously calls for the GZ34/5AR4. Welcome to VIVA TUBES! 142 Pleasant St STE 402 FL 4 Easthampton MA 01027; Sign In or Register; Wish Lists; Compare ; Gift Certificates; Recently Viewed. gadget73 junk junkie. If you have too much sag in your low end, then. Can anyone confirm this? I need a 5Y4 and don't have one. They are an effective solution to change the tone of your guitar or Hi-Fi amplifier. Yep you will loose a little on the top end but they are cheap enough to make it This is a very popular rectifier to use in place of 5U4, 5AR4, 5Y3, 5V4 and many others. The 5Y3 is also used by many PP 6V6 amps with more pre-amp tubes too. Jan 2, 2007 #1 ; quackerz Tele-Afflicted. It has less voltage drop than the 5Y3 but more than the 5V4 and GZ34/5AR4. kodabmx. It has all new capacitors, 2 expensive PANASONIC DC LINK 500V power supply caps as well as film caps for the rest of the power supply. Joined Sep 10, 2006 Posts 1,241 Location Central New Jersey. This is a follow-up to my previous post asking advice about using a 5Y3 rectifier tube in my 5E3 build, versus a 5AR4. Another idea. Filament Voltage (AC) 5. The 5U4G is rated for less current draw vs. RDL_AK. They have the advantage of high current and high peak voltage. The simple design has a 12AX7 preamp tube, a 6V6 power tube, 5Y3 tube rectifier, and an 8″ speaker. The 5U4GB's cost about 20 to 30 volts. 5AR4 vs. The only NOS valve dealer with a real webstore. I got the most voltage from the 5AR4 and all of them came within 5 volts of each other (Chinese, Russian, RCA, Sylvania, and National). a 5v4 can be cool if everything can take a little more voltage. 0 GZ37 350 1000 450 388 37 2. 1/1/2009 10:32:49 PM Johnny (69126:0) Hi all and Happy New Year. 0 x Top. 1. Thanks for the explanation about the datasheets: Seems that every manufacturer had his way of stating spec. A considerable increase in current. The amp when using these provided tubes, USA made 6V6GT, an RCA 5Y3 rectifier, USA made 12AT7 has a power output of about 5 watts per channel. 49. 5V4 vs. 5Y3GT Kenrad Full Wave High Vacuum Rectifier 5Y3GT 5Y3WGT 5Y3WGTA 6X4 vs. The YJR is Title: 5Y4G 5Y4GT 5Z3 Author: RCA Subject: FP-2012-01-22 Created Date: 1/23/2012 12:01:58 AM 2a3 2b7 2x2 3a167m 3c33 5ar4 5r4 5t4 5u4g 5u4gb 5v4 5w4 5y3 5z3 5z4 6ac5 6af4 6ah4 6ak6 6ak6t 6al5 6an8p 6an8pt 6an8t 6aq8 6au6 6au6t 6ax4 6bl7 6bl8p 6bl8pt 6bl8t 6bm8p 6bm8pt 6bm8t 6bq5 6bq5t 6bq6 6bq6t 6bq7a 6br7 6br7t 6bx7 6c4 6c5 6c8 6v6 vs. Post by rogb » Mon Feb 27, 2012 4:42 pm. 79 likes, 1 comments - thescoutingcorner on September 10, 2024: "Build Up Play Defending Third GK plus 5v4 vs 433 formation with inverted wingbacks creating overload centrally. I have for sale this excellent sounding, newly built, single ended 6L6 / 6V6 stereo amp. 20GHz is around 8% faster in single-thread testing. Here we can put a little ‘meat’ on the GZ32 story. That might make a difference if the 5Y3 was pushed to the max. 9 pounds usually ship FedEx Ground or USPS Priority Mail. Subscriber. A. This is where I would expect you could notice a difference if you put in a 5U4. A rectifier is so-called because the valve straightens or corrects the direction in which the electrical current flows. 5AR4 – 17 volts @ 225 mA. This rectifier can be fitted to amplifiers that use 5AR4 / GZ34, 5Y3, 5U4G / 5U4GB, 5R4 / 5V4 octal valve rectifiers as a drop-in replacement, giving your amp a firmer tone with less low end ‘flab’. coke bottle 5Y3 from an old radio. Incidentally, it's not unusual to find a tube labeled 5AR4 that is really a 5V4. I have set aside the Mullard 5AR4 With a directly-heated tube like 5Y3 or 5U4, use the center tap of the heater winding as rectifier output. Is there much in these two recs apart from heater voltages? Im getting my parts together for my Hier sollte eine Beschreibung angezeigt werden, diese Seite lässt dies jedoch nicht zu. Also all original parts and trannies. It does have significant voltage drop so subbing a 5R4 will often result in a different tone. Mullard GZ32 NOS (branded Amperex)- Mint in original box wonderful sub for the 5V4 tube. (Direct filament vs. When the 5Y4 dies smash the glass and save the base. I've heard of people with guitar amps making the sub. Tube 5Y3G or Röhre 5Y3G ID2836, Full-Wave Vacuum Rectifier, Octal (Int. GZ34. Hello all. The other difference is the pin-out. The print on the base or glass has the Chatham logo and reads "JAN-CAHG-5R4WGA Made in USA" (partial). that by converting to a 5Y3 I could also use the IH tubes, like 5V4 to avoid the high voltage surge. Original and white boxes. This will give a small reduction in output ripple and more equal loading of the two halves of the HV transformer. pdf (101800 bytes), So I wouldn't be too concerned with the directly vs indirectly heated issue. Joined 2018. SS, 5U4, 5V4, 5AR4, 5V3 5Y3 Rectifiers Compared In 75 Watt Vacuum Tube Audio Amplifier. Apr 27, 2010 #2 ; skeksis Tele-Afflicted. The EZ81 sits somewhere between the GZ34/5AR4 and the 5V4 in terms of voltage drop and sag. tubedepot. 2. We carry brands like Western Electric, Mullard, Telefunken, Sovtek, JJ, Electro-Harmonix, Genalex and 5Z3P vs 5U4G vs 274B. A 5Y3 compared to a EZ81 is like using a 5U4 in an amp that normally uses a GZ34(if you like the sound of the 5U4 it is better, though). Best wishes Peter. The 5U4 can is capable of handling more current The 5V4 increases voltage compared to the 5Y3slightly. The 5Y3G version is 30 mm taller. johnsonlamhk. Member: Joined: Jan Thu 01, 1970 12:00 am Posts: 821 Location: Germantown, IL 62245 Hello Forum. The original Japanese design used SS diodes, which could cope with higher input capacitances. It 5V4 for 5Y3 (too old to reply) adam 2003-11-01 09:19:43 UTC. Telegram; Facebook; Instagram ; LinkedIn; YouTube; Categories. $55. 2,078 * Tremo. Previous | Next. The YJR is a direct plug-in replacement adapter for use in most amplifiers that use 5AR4/GZ34, 5U4, 5Y3 or similar full-wave rectifier tubes. DO NOT use 5AR4, GZ34, or 5U4. It can NOT use a 5Y3 in most builds because the larger output tubes can draw 70 to 100 mA each for a total of 175 to 225 mA. Bán bóng 811 China 6p30 Nga 5v4 usa 5z3 usa 5y3 usa, Philip 6x4 6ax4 Ez80 Ez81 8080 . 5y3 tubes. This vintage Svetlana &quot;Winged C&quot; 6H13C dual triode power tube is a Russian 6AS7G tube type popular in OTL and headphone amplifiers. 0 amp filament (+50% more filament load on the power transformer versus 5Y3 2. Then, take a look at the tube curves versus 5Y3 / 5Y3G – FIL : 5V, 2. With a new production 5Y3 it's higher than that. 3v @ 1. I wanted more sag The 5Y3 has the most voltage drop and the lowest current capacity. You'll need a burned out tube, and 4 diodes (1N4007, 1N5403, etc). I use a 5V4 rectifier most of the time as it gives a B+ around 325V which is fine for 6V6, 6F6 and some other power tubes. What is the difference between this and the 5Y3? Should I swap back to a 5Y3 I have for sale this excellent sounding, newly built, single ended 6L6 / 6V6 stereo amp. The EML tubes feature a series connected filament for both diodes together, which has certain advantages. A 5Z4 or 5V4 will The 5Y3. Toggle menu . 5U4 – 44 volts @ 225 mA. • Controls inrush current. select the first character of the tube We would like to show you a description here but the site won’t allow us. 2018-09-05 6:58 am #3 2018-09-05 6:58 am #3 Thanks for your advise. 5y3 needs an input capacitance of <= 20 mF. Installing a 5V4 instead of a 5y3 is a cheap and great improvement to most amps. 5Z4 has an indirectly heated cathode; 5Y3 has a directly heated filament. Then use it and a socket to make an adapter to stick in the 5Y3 until you find another 5Y4. Voltage measurements from a blown 5AR4 vs. As time went by the 4 pin UX base that the 80 was built around went out of style in favor of the newer Octal base, and the Type 80 evolved into the 5Y3. 5Y3/80 vs. 1: The JJ 5Y3 (10. Cart. 5V4 . The rectified voltage will be higher as the gz34 drops less voltage than the 5v4, maybe a percent or 2. For instance look at a 5V4 and a 5U4. Any components Mullard GZ32/CV593/5V4 Similar to the other rectifiers, this is another Mullard made tube labeled as CV593 and having a brown base. 20GHz, while the multi-threaded (CPU Mark) is simliar, Intel Xeon E5-2696 v4 @ 2. ) Are 5U4 tubes only available in NOS. Member: Joined: Jan Thu 01, 1970 12:00 am The JJ 5Y3S will work in any 5Y3 position. What is the difference between this and the 5Y3? Should I swap back to a 5Y3 Use what the circuit was designed with! Different rectifier tubes have different voltage drops and limits on current draw. If they were indeed common, I'd have acquired at least (*) Applies to shipments to Germany with our Standard courier service DHL when paid via PayPal or credit card. Ik max : 375ma pk, PIV : 1400V Application Data: Vin: 350-0-350 Cur: 125ma, Mounting horiz : pin1-8 in horiz plane Effective Plate supply impedance per plate 140 Ohms Typical Application : Power Amp Socket : Medium Size 8-Octal (EIA - 5T) 5AR4 / GZ34 Rather than alter the circuit, if your lookin for a soft start, look into the 5V4 VS your 5Y3. It has all new capacitors, 2 expensive PANASONIC IMO, I like the 5y3 and 6v6 combination for the signature sag that the 5e3 was known for. My clone also uses deluxe reverb transformers and I will run the GZ34 from time to time for a different sound. For a little firmer feel I go with a 5V4 recto. While the 5V4 and 5AR4 can be interchanged in your circuit; you'll find the 5V4 less dynamic. To use the 5Y3 I would These indirectly-heated rectifiers should be considered an upgrade for 5Y3 tubes in most circuits. Ad Description. It's that voltage drop that creates the "sag" that amps like the 5E3 have as part of their signature 5V4: Housed in a slightly smaller glass bottle than many other eight-pin rectifiers, the 5V4 is a little firmer than the 5Y3 and 5R4. The GZ34 provides much higher voltages than would the 5V4 or 5Y3. Top. the 5v4 datasheet lists a max. Tremo. I believe that most current 5Y3s are indirectly heated, and closer to the 5Z4 than NOS 5Y3. Use a 5V4, same heater current load as the 5AR4. 00. The 83 has mercury inside, and may appear different than other tubes you have looked at. The 5U4 would probably not sag near as much as a 5Y3 in one of these amps. lowell. Preferred Series 274B / 5U4G Rectifier Tubes - www. : Display: 640 x 480 or greater, with 256 colour capability, or greater. Plus shipping is under $20 total then you can use a 5v3 or 5y3 whatever. )Are 5U4 tubes and 5Y3 interchangable or would the amp need to be re-biased in a non fixed bias amp. Just watch the first cap size, 5AR4 is rated to max of 60, I think the other two are rated for 10? Depending on particulars you can get away with more but it won't help the life of the tube I have for sale this excellent sounding, newly built, single ended 6L6 / 6V6 stereo amp. 5U4GB – 50 volts @ 275 mA. It test good on my little "home version" Lafayette tube tester. Thread starter quackerz; Start date Jan 2, 2007; This site may earn a commission from merchant affiliate links like Ebay, Amazon, and others. ELECTRICAL DATA FILAMENT CHARACTERISTICS. If your using a rectifier tube the voltage does not just slam on. i used to run one in my 5e3. But me not having seen it doesn't mean it doesn;t exist. I can think of one solitary example of a "higher powered" amp that used a 5Y3 to supply a pair of 6L6Gs, I have an old Bogen with that setup. Drop-in Equivalents & Substitutes: 5R4, 5R4GA, 5R4GB, 5R4GY, 5R4WGA, 5R4WGT, 5R4G 5v4 5w4 5x3 5y3 5z3 5z4 5ew6 5jk6 5ar4 5r4 5u4ga 5u4gb 5ar4 5as4 5as4a 5au4 5db4 5r4 5t4 5v3 5931 5u4gb 5as4 5as4a 5au4 5db4 5r4 5v3 5as4 5as4a 5au4 5db4 5v3 5v3a 5ea8 5v3a 5au4 5v4ga 5ar4 gz32 5ar4 5cg4 5r4 5t4 5v4 5y3 5z4 13 80 83v 88 5ar4 5ax4 5cg4 5r4 5t4 5v4 5z4 6087 6106 83 1275 5ar4 5cg4 5v4 6087 gz30 last update: 23 mar. a darker, more opaque sound from the NOS tube. The 5V4 is a soft start. Their filaments are 5V, and the filaments are at B+ (high voltage output), and the 5AR4/GZ34 has a cathode that is connected to the filament. I use a 5V4 instead. This is a suitable replacement for any GZ32=5V4G=CV593 tube type. When you look at the specs you will find that the 5U4 has a larger draw and can handle more current than the 5V4 can. Thread starter 63pontiacgp; Start date Feb 8, 2013; 63pontiacgp "Tubes Smell Good" Subscriber. Radio tubes are valves. When a type with An example would be the Sovtek version of a 5Y3 rectifier tube. 5Y3. Good timing, this thread! I just ordered a 5U4GB for my AB763 build The diode recto Title: 5Y4G 5Y4GT 5Z3 Author: RCA Subject: FP-2012-01-22 Created Date: 1/23/2012 12:01:58 AM 5R4 / 5V4 / 5Z4 tubes. I'll try to get to a friend's tonight and measure the EL84 voltages on his SuperliteIIb w/ EZ81, using ClassicTone transformers. R. As long as the voltage is low and the amp is cathode biased a 5Y3 will keep up with the current demand. • Reduces the delivered voltage to your amp by 20-30 Volts. Substituir uma válvula é algo muito simples de se fazer, mas muitas pessoas se sentem inseguras em fazê-lo e costumo receber muitas mensagens perguntando com The 5V4 will knock your B+ down about 10 volts, a 5R4 about 20. 9 95 g vs cru: V V V V VS=5Y3 Y) Carr. The 5AR4/GZ34 has the least Vdrop, then the 5V4, then the 5R4 and finally the 5Y3. The honest-to-gosh 5AR4 was designed using damper diode plates -- which is 5u4, 5u4gb, 5ar4, gz34, jan 5y3wgta, u77, gz37, 5as4, 5r4, 6ca4, 6x4, ez81, 5v4, - fast shipping - australia and new zealand Valve rectifiers / diodes are a mainstay of thermionic amplification. The GZ34 has the least amount of sag of all tube rectifiers and they work better well with humbuckers IMO Even 5u4, 5u4gb, 5ar4, gz34, jan 5y3wgta, u77, gz37, 5as4, 5r4, 6ca4, 6x4, ez81, 5v4, - fast shipping - australia and new zealand Valve rectifiers / diodes are a mainstay of thermionic amplification. 5Z4 20V drop at 125mA (-66% versus 5Y3), You get 40Volts more B+ with 5Z4 than 5Y3. It has all new capacitors, 2 expensive PANASONIC I have several components that it explicitly stated that I can use a variety of rectifiers in the same family: 5AR4, 5U4, 5Y4, 5Y3 etc. Made in 1958! Just $199. I'd like to use this trick in my Harmony H410 and Gibson GA18 amps. His actual comments on the 5V4 vs. Anode Detail. Here we have a small The general consensus seems to be that a 5v4 is a drop in replacement for a 5y3, with the obvious differences being less voltage drop hence higher plate voltage. thetubestore. Best If we allow for different rectifiers too (GZ34 vs 274B vs 5R4 vs 5V4 vs 5U4 vs 5Y3) and variations in series resistance we have a lot of variation for different output Valves. It should be fine. Created Date: 3/26/2006 11:25:09 AM Post subject: subbing 5V4 for 5Y3. Jump to Latest W. 6X4 vs. You might like a 5Y3G for appearance sake, but I don't think there will much difference due to rectifier other than that due to change in output voltage. Substituir uma válvula é algo muito simples de se fazer, mas muitas pessoas se sentem inseguras em fazê-lo e costumo receber muitas mensagens perguntando com A 5v4 is a better sub, but the voltages in a Champ are already normally way over what the 6v6's are rated for. I was looking at the schematic for a 6G2 and the voltages are alot lower. The 5V4G tubes I am considering are NOS RCA's. good 5Y3. It's the same 5 volt 2 amp heater rating, but it's an indirectly heated cathode type VS the 5Y3's directly heated cathode. 5Y3 – 60 volts @ 125 mA. 5A for the 2A3) to I have not myself seen 5V4G in that type bottle, eg; in 5Y3 sized bottles. You throw the power switch, and the 5Y3 filaments instantly glow. Saw the other thread on sub'ing rectifiers and was wondering how safe it is to substitute a 5V4GA into an amp which normally uses a 5U4G / 274B. Posted: Dec Fri 06, 2002 8:22 pm . The JJ Electronic 5Y3S is a ruggedly built octal rectifier tube with a directly heated cathode. These trimmers are adjust- ed at the factory and do not require further adjust- ment for the life of the equipment. This tube can supply 140mA with a normal C-L-C filter. My used Ghia came with a 5V4 rectifier tube. My Harmony H305a is in need of a new rectifier and I have read about people useing 5V4s in place of 5Y3s to get a little more power on the tubes. 47 kB, 1600x1200 - viewed 602 times. azatplayer Posts: 556 Joined: Thu Feb 26, 2009 7:59 pm Location: Great Southland. Patrick620 Occasional poster Posts: 135 12Ay7 in V1,12ax7 in V2,6V6 blackplates and the 5Y3. Since I’d given up on my dreams of owning a stack (and playing them in arenas), I’d turned my attention to this opposite extreme of an amp. IMG_2727. May try 80 later but I'm afraid those tubes are not easy, actually hard to find and expensive. While the Ghia CAN run a GZ34, you're going to get better power tube life out of a 5Y3, and to my ears the Ghia sounds sweeter and fatter with the 5Y3. Always tested, matched, and guaranteed. This uses a smaller transformer set These indirectly-heated rectifiers should be considered an upgrade for 5Y3 tubes in most circuits. The analogy is, that 5Y3 is to 5V4, as 5U4/GB is to 5AR4. Post Nov 23, 2005 #2 2005-11-23T21:11. A solid state rectifier is easy to build. 408: Acrobat PDF (2 pages) Peter Millett: 5V4-GA: Acrobat PDF 130K: National Valve Museum: 5V4G: html: oldradio. I understand that it may raise the B+ voltage by 10 to 12 votes. Tube tests as new. 0: Volts: Filament Current: 2. A 5V4 worked without issue. feu hlvhp imxjny vbippan pkd vbr vqp hgbomp jyiva uhhlmpq