The 6AV6 and 6AT6 have identical specifications and pinouts.
Quote:
Originally Posted by vts1134
...schematic is a 6AV5GT and I have a 6AV6GA installed.
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A quick google shows me that the filament pins for these two tubes are not the same, so immediately I would say they are NOT compatible. It also looks as if one is a 7-pin tube and the other an 8-pin tube.
Can you trace the 6.3v filament line to the pins on the socket? The place they come out should indicate which tube is correct.
6AV6 specs - Filament pins 3 & 4
6AV5 pinout - Filament pins 2 & 7