I usually tend to use 5u4gbs as the rectifier when needing a high current tube rectifier and account for the larger voltage drop with the correct transformer however the 5ar4gz34 is a good tube as well. I use this jj 5y3 using a removal tube adapter that allows me to use a 5y3 which is essentially an 80 tube with an octal base. The starting volatge is 425 volts from a diode rectifier and each tubes specs drop from there. I have some copies of some charts from gerald webers book on tube amps that compare different rectifier tubes.
However this tube never appeared as a metal tube, but only in the glass versions 5y3g and 5y3gt. This is the first 5y3gt i have used from them, as my usual tube is the 5u4gb. Evidently there were plans to bring out a metal version earlier on, but rca had huge problems with metal rectifier tubes, and it would appear that they decided to focus on the 5z4, which has cathodes and the same ratings. Avo ct160 valve testing mullard el34 6sn7 dual triode gz34 rectifier duration. Substitutes are given as a guide only please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application. Rectifier tubes help convert ac current to dc current, playing a pivotal role in helping supply power to other tubes in the amp. Solid state rectifier direct plugin replacement for 5ar4, 5u4 and 5y3 rectifier vacuum tubes in amplifiers with center tapped secondary power transformer. This is a chart showing the specifications for 5 volt rectifier tubes that can be used in guitar amps.
It has found wide use in tube radios and early guitar amplifiers of the fender champ type. For additional information, or to ask a question about vacuum tube rectifiers, see the vacuum tube rectifiers thread on. The 5ar4 and gz34 is an indirectly heated cathode tube which means it takes longer to warm up. At the bottom of this page youll find some links to other tube datasheet sites in. Jun 08, 2015 the new gibson les paul standard 60s is it worth buying. It is virtually identical, electrically, to the older fourpin type 80 tube, but with an octal base. I have always had good experience with sovtek rectifier tubes. Now that we know the peak plate current it is time to choose a rectifier tube. However the manual states this tube the 5ar4 may be replaced with the 5y3 rectifier tube.
Buy nos 5y3gt vacuum tubes online, in stock and ready to ship. Vacuum tube 6106 5y3wgt, rectifier, full wave antique. This is why the 5v4 is often recommended because its current draw is close to the 5y3gt while not having as great of a. Works and performs exactly as a stock nos 5y3 tube would in those vintage applications i have employed this in. At the bottom of this page youll find some links to other tube datasheet sites in case you cant find what youre looking for here. Like the 6ax5 it is a full wave rectifier with two plates and a single, common cathode. By having this information on a chart you can choose a rectifier tube that will best suit your playing style. Welcome to tubedepot javascript must be enabled to. Please see the substitutes at the top of the page for more details. The research that i have done has led me to believe the 5y3g will have longer life, but i am worried about creating a problem in my amp due to voltage drop. Though the guitar signal never actually passes through the tube, different rectifiers can have an impact on how your amp sounds. This power supply uses a filter choke and a 5y3 tube rectifier. Rectifier tubes 5ar4 gz34 5r4gy tube basics and faq. The more of a voltage drop dcv drop you have the more sag or compression you will have.
Always check the bias and idle power of the tube with the new rectifier to be certain that it is running within spec. There are some basic rules to apply which make this task easier. The 5ar4 and gz34 is an indirectly heated cathode tube which means it. The research that i have done has led me to believe the 5y3g will have longer life, but i am worried. Tubes free delivery possible on eligible purchases. Rectifier interchangeability and its relation to clean headroom. The original 5y3gt was a filamentcathode type, but this tube appears to be a modified version that may be a heatercathode type. Increasing the cathode bias resistor is often necessary. Also the rectifier tube spec sheets provide a multiplier to calculate forward dc voltage. The symbol which connects to the ground prong of the power plug means chassis ground. The 5y3 is a mediumpower directly heated fullwave rectifier vacuum tube introduced by rca in 1935.
I hope that this discussion takes away some of the mystery surrounding vacuum tube power supplies. Rectifier comparison and interchangeability chart kca. Bold designators are close or identical, italic designators are different ratings, different pinouts or different filament voltages. Vacuum tube 5y3gt, sovtek antique electronic supply.
According to the nomenclature for american octal tubes this tube would be a metal tube, as no suffix g or gt is added to the designation 5y3, indicating the glass versions. A new strait bottle rectifier tube for natural tube compression. The audio power amplifier uses a 6v6 or 6aq5, they are very similar in characteristics. Reading and learning about nos tubes and the newer sovteks, i decided to order up a 60s nos tungsol 5y3gt off the bay to replace the sovtek. In order to simply connect those tubes, first thing you do, is wire the 5z3 rectifier the normal way, to the four pins of the 5z3. I have a 1928 rca radiola model 62 which originally uses a type 80 rectifier tube. And i hope that youll feel more comfortable with the topic the next time you decide to build or rebuild an amplifier. This tube is a fullwave rectifier tube intended for rectification in general purpose audio equipment such as guitar amps and hifi systems. When you change the rectifier tube in an amp, it changes the voltages in an amp. According to ludwell sibleys book, tube lore, the 5y3 did not appear until june 1941.
We are happy to accept your order at and also through our call center. Rectifier comparison and interchangeability chart kca nos. I have been thinking that i would like to try a 5y3g sts shaped tube in one of those amps. Like most retailers at this time, due to covid19, we may experience shipping delays on some orders. Rectifier tubes are the diode component within a tube amplifier that converts ac voltage from the power transformer into a dc voltage to amplify sound. My anthem has originally had a 5ar4 but came with a jan 5y3gt in the power supply. Tonal differences in 5y3 tube rectifiers telecaster. I try to concentrate on popular andor readily available tube types. I recently bought a used 68 vibro champ that came with a sovtek 5y3 rectifier tube in it. I have two amps that take 5y3gt tubes in the rectifier spot. Ive rolled a number of nos types over the last three years and am wondering two things.
If your amp has a rectifier tube it will more than likely be called one of the following names 5y3s or 5y3gt 5ar4 5u4gb 6ca4 ez81. When installing a different rectifier tube, especially from one that gives a greater drop to one that has a lower drop ex. This is the circuit diagram of stereo tube amplifier using 6sq7gt and 6v6gt. Solid state rectifier for 5ar4, 5u4, 5y3 tubes antique.
Buy the 5y3gt tronal audio tubes duo diode online on electols at best price for immediate delivery. Tube 5y3g or rohre 5y3g id2836, fullwave vacuum rectifier, octal int. Sep 09, 2007 my anthem has originally had a 5ar4 but came with a jan 5y3gt in the power supply. This fullwave, highvacuum rectifier is specifically designed for aircraft, military, and industrial applications where freedom from early failures, long service life, and uniform operating characteristics are extremely important. This list is biased by the tubes that i have encountered during the repair of the many tube amps that have come to my repair shop. The sovtek 5y3gt tube is an indirectly heated fullwave rectifier tube intended for rectification in general purpose audio equipment. Welcome to tubedepot javascript must be enabled to use this site. I think i am hearing a warmer, dirtier od sound when driven hard, than with the sovtek. I have an air tight htm300 amp which has tube rectification.
Incredibly easy to use, you merely unplug your vacuum tube rectifier and plug in the yellow jacket. Converts most audio amplifiers which use a vacuum tube rectifier 5ar4, 5u4 or 5y3 to this solid state device. If you use a two prong plug be sure to connect the wide prong to the bottom lead. Max capacitance first filter 5y3 antique radio forums. Rectifier tubes tagged 5ar4 gz34 5r4gy upscale audio.
Making this decision requires checking the tube data sheets, looking at max ratings and voltage drops, and applying some judgement and experience. Yes, once you measure or calculate the forward dc voltage from the ss rectifier, just use the voltage drop chart i posted earlier. Be careful when going to a higher rated rectifier in 6v6 amps. It can deliver up to 70ma of dc current and up to 400v output voltage which should be good enough for most preamplifiers. The tube rectifier also has a standby function it keeps the tubes from drawing current until the filaments wram up a bit. To view this site, you must enable javascript or upgrade to a javascriptcapable browser. You should always avoid having more than 430 volts across a 6v6 plate voltage minus cathode voltage. The new gibson les paul standard 60s is it worth buying.
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