[Milsurplus] FS T368 driver tube substitutes

[JOHN Freeman]

I have avail   seven  NOS 6AV5 tubes,which some  have used to substitute for the  expensive 6000 driver in T368.This tube has 6.3 V filament  so to use as substitute, the existing 25 volt filament  to 6000 tube has to be  disconnected and 6.3 v supplied to the socket for the 6AV5,plus some also  change screen dropping resistor to  reduce screen volts to the replacement tube.Otherwise socket connections are identical to the 6000.I will sell  all 7 for 20 bucks. W7KPB