It is also good for KT88, 6L6, or related tubes working on push-pull amplifiers.

The preamoplifier part I use 12AX7 parelled to drive the 12AU7 tube, using 12AU7 to drive two EL34 tubes to make them work at pushi-pull state.

I have the schematic and related pictures when putting the PCB into the amplifier, if you are intereted in make a tube amplifier by yourself, please ask me questions through ebay message.

The listing includes a main PCB for EL34 push-pull(the big one), and a power PCB(the small one).

Without any other parts with it. You need to prepare your capacitors, resisitors, and tube sockets by yourself.