5y3 tube substitute. This resistor 500 Ohms 10 Wat I've got an old Heathkit AA-111 stereo tube amp. Apparently these tubes are interchangeable but I can't find anything to back My amp draws something like 75mA all told (one power tube, one rectifier tube) with a 6L6 and maybe 55mA with a 6V6 so in that case the output voltage under load if I swapped in a 5U4 would be about 5Y3 Substitutes Warning: 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. A lot of other tubes will work like the 5AR4, but these are more efficient and the following In most situations, you can replace a 5AR4/GZ34 with the 5Y3 since they have the same pin outs. It will perform like USA made 5Y3GT tubes, keeping your vintage amp's tone 5Y3 and 5Y4 are electrically identical, but the base connections of each pin are not identical. there's a lot of info out there, but some sites contradict each other on this- some say 5z3 and others say 5z4 for instance. I have found the voltage Specifically on the 5Y3 tube, I would go with vintage (NOS or OS) tubes especially for this one. In other words, a 5Y3 is not a Plug and Play substitute for a 5Y4 and vice versa - the Parts are x2 1N4007, 10W/500 Ohms Resistor and Vacuum tube base. I used a 10W resistor to compensate the heat from the resistor. Primarily used in guitar tube amps. A lot of other tubes will work like the 5AR4, but these are more efficient A 5Y3 is a very droppy tube. 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. It will have less voltage drop than the 5Y3 but also draws an extra ampere from the 5v winding (as you found out). Solid State Rectifier Direct plug-in replacement for 5AR4, 5U4 and 5Y3 rectifier vacuum tubes in amplifiers with center tapped secondary power transformer. A 5U4G Hi y'all! :biggrin: I have heard you can safely substitute a 5V4GA tube for a 5Y3GT rectifier. Tube gear is fun because you can do some tube rolling. Tube Interchangability Reference The following should be direct substitutions. I am planning to try this in my '59 Fender Tweed Deluxe Amp to achieve a little more headroom and Is there a good sub for it? 5Y3? A friend has an RCA mic pre with a 6X5 Unless you absolutely want a tube where a 6X5 is I would just substitute 1N4007's Hi, Later this week I`ll get my champ head kit. I like to use them when testing out amps that use a GZ34 because I once bought a garage full of tubes and have 4 lifetimes' supply of 5Y3s. Go with Kenrad, Bendix, Hytron, etc. You just need to judge 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. I have also read that the 5v4 is more I don't know where I got this from, but given the discussions of late regarding (over) voltages, I thought this table of common rectifier specifications might be useful to the forum. So many to The 5Y3 tube is a rectifier tube and is also known by the equivalent part numbers 5Y3GT and 5Y3WTG. A 5U4 is a bigger tube (physically and electrically) than the 5Y3. To prevent damage to equipment, it would be wise to double check with a good tube manual before actually doing a Although it will usually work as Tom mentioned there are differences. (I`ll post pics of the build in the "fender champ stack thread" ) The champ uses a 5Y3 rectifier and I was wondering what kind of tubes I might use as The 'Copper Cap' looks like a metal tube and plugs in to the 5Y3 socket just like a tube. The Copper Cap also emulates the tube 'sag' and 'warm up' exactly, but it is solid stat and draws no filament power. JJ Electronic's 5Y3-S vacuum tube is a drop in replacement for any 5Y3 tube type. A 5Y3 is limited to 125 ma current, 5U4G can supply 225 ma. Amps with two power tubes the difference scales accordingly. Just be aware that the tubes you change out which make the most difference in the sound of the amp with his amp will be the driver tubes. Re: Alternatives for 5Y3 rectifier? As mentioned, the 5Y3 keeps the voltages lower for the tubes and caps following the rectifier. The amp calls for the 5AR4/GZ34 tube but mine has the 5Y3GT in its place. Plenty around and can be purchased at a descent price. Ever wonder how the rectifier tube's cathode survives after the amp is turned on but before the cathode (or filament) gets hot? People who operate broadcast radio and TV station tube As mentioned, the 5Y3 keeps the voltages lower for the tubes and caps following the rectifier. Those 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. but in general, it's a common . But again, almost any substitute for a 5Y3 will result in at least slightly higher voltage under load. There is also a difference in internal voltage drop within the tube. trying to get info on the direct equivalents to a 5y3 rectifier tube.


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