Hi Manualblock,If my memeory seves me correcty, I believe that this is basically the same circuit as the VTV KT-88 amplifier, it has been a while since I have seeen it, my memeory is short.
Would you please guide me to the VTV schematic on line if possible, so I can compare the two circuits?
I have a pair of the Allen amplifiers and want to see if the VTV circuit would give me any pointers in upgrading what I have.
Thanks
Norris Wilson