The 5ar4 and gz34 is an indirectly heated cathode tube which means it. 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. Yes, once you measure or calculate the forward dc voltage from the ss rectifier, just use the voltage drop chart i posted earlier. It has found wide use in tube radios and early guitar amplifiers of the fender champ type. This is why the 5v4 is often recommended because its current draw is close to the 5y3gt while not having as great of a. If you use a two prong plug be sure to connect the wide prong to the bottom lead. My anthem has originally had a 5ar4 but came with a jan 5y3gt in the power supply. This is a chart showing the specifications for 5 volt rectifier tubes that can be used in guitar amps. Be careful when going to a higher rated rectifier in 6v6 amps. 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. I think i am hearing a warmer, dirtier od sound when driven hard, than with the sovtek. Making this decision requires checking the tube data sheets, looking at max ratings and voltage drops, and applying some judgement and experience.
Bold designators are close or identical, italic designators are different ratings, different pinouts or different filament voltages. However this tube never appeared as a metal tube, but only in the glass versions 5y3g and 5y3gt. The research that i have done has led me to believe the 5y3g will have longer life, but i am worried. However the manual states this tube the 5ar4 may be replaced with the 5y3 rectifier tube. The audio power amplifier uses a 6v6 or 6aq5, they are very similar in characteristics.
I have been thinking that i would like to try a 5y3g sts shaped tube in one of those amps. Buy nos 5y3gt vacuum tubes online, in stock and ready to ship. 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. Please see the substitutes at the top of the page for more details. Rectifier interchangeability and its relation to clean headroom.
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. I have two amps that take 5y3gt tubes in the rectifier spot. Like most retailers at this time, due to covid19, we may experience shipping delays on some orders. Now that we know the peak plate current it is time to choose a rectifier tube. The 5ar4 and gz34 is an indirectly heated cathode tube which means it takes longer to warm up. I have always had good experience with sovtek rectifier tubes. To view this site, you must enable javascript or upgrade to a javascriptcapable browser. I hope that this discussion takes away some of the mystery surrounding vacuum tube power supplies. Max capacitance first filter 5y3 antique radio forums. Rectifier tubes tagged 5ar4 gz34 5r4gy upscale audio. This is the first 5y3gt i have used from them, as my usual tube is the 5u4gb.
I have an air tight htm300 amp which has tube rectification. Always check the bias and idle power of the tube with the new rectifier to be certain that it is running within spec. Welcome to tubedepot javascript must be enabled to use this site. Also the rectifier tube spec sheets provide a multiplier to calculate forward dc voltage. 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. Solid state rectifier direct plugin replacement for 5ar4, 5u4 and 5y3 rectifier vacuum tubes in amplifiers with center tapped secondary power transformer. The more of a voltage drop dcv drop you have the more sag or compression you will have. Increasing the cathode bias resistor is often necessary. 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. The 5y3 is a mediumpower directly heated fullwave rectifier vacuum tube introduced by rca in 1935. 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.
Jun 08, 2015 the new gibson les paul standard 60s is it worth buying. 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. You should always avoid having more than 430 volts across a 6v6 plate voltage minus cathode voltage. Incredibly easy to use, you merely unplug your vacuum tube rectifier and plug in the yellow jacket. 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. By having this information on a chart you can choose a rectifier tube that will best suit your playing style. Like the 6ax5 it is a full wave rectifier with two plates and a single, common cathode. We are happy to accept your order at and also through our call center. The new gibson les paul standard 60s is it worth buying. The tube rectifier also has a standby function it keeps the tubes from drawing current until the filaments wram up a bit. For additional information, or to ask a question about vacuum tube rectifiers, see the vacuum tube rectifiers thread on. Not necessarily, while the process will need to exist in the amp you may not have a tube depending on the design or you may have a solid state rectifier. Sep, 2017 avo ct160 valve testing mullard el34 6sn7 dual triode gz34 rectifier duration.
The symbol which connects to the ground prong of the power plug means chassis ground. 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. Vacuum tube 5y3gt, sovtek antique electronic supply. The sovtek 5y3gt tube is an indirectly heated fullwave rectifier tube intended for rectification in general purpose audio equipment. 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. Tonal differences in 5y3 tube rectifiers telecaster. Rectifier tubes help convert ac current to dc current, playing a pivotal role in helping supply power to other tubes in the amp. I recently bought a used 68 vibro champ that came with a sovtek 5y3 rectifier tube in it. And i hope that youll feel more comfortable with the topic the next time you decide to build or rebuild an amplifier. Though the guitar signal never actually passes through the tube, different rectifiers can have an impact on how your amp sounds. Vacuum tube 6106 5y3wgt, rectifier, full wave antique.
This is the circuit diagram of stereo tube amplifier using 6sq7gt and 6v6gt. Welcome to tubedepot javascript must be enabled to. Solid state rectifier for 5ar4, 5u4, 5y3 tubes antique. This tube is a fullwave rectifier tube intended for rectification in general purpose audio equipment such as guitar amps and hifi systems. Tubes free delivery possible on eligible purchases. It can deliver up to 70ma of dc current and up to 400v output voltage which should be good enough for most preamplifiers. It is virtually identical, electrically, to the older fourpin type 80 tube, but with an octal base. I try to concentrate on popular andor readily available tube types. The original 5y3gt was a filamentcathode type, but this tube appears to be a modified version that may be a heatercathode type. Rectifier comparison and interchangeability chart kca nos. Rectifier comparison and interchangeability chart kca.
According to ludwell sibleys book, tube lore, the 5y3 did not appear until june 1941. When you change the rectifier tube in an amp, it changes the voltages in an amp. Converts most audio amplifiers which use a vacuum tube rectifier 5ar4, 5u4 or 5y3 to this solid state device. 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. The starting volatge is 425 volts from a diode rectifier and each tubes specs drop from there. A new strait bottle rectifier tube for natural tube compression. I have a 1928 rca radiola model 62 which originally uses a type 80 rectifier tube. At the bottom of this page youll find some links to other tube datasheet sites in.
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