This amplifier is one of the original 274s with two 8874 output tubes.
There were a very limited
number of these amps produced. I have been told the number was 18.
It was later modified to use three tubes. The modification was done with
factory supplied parts
and the exhaust plenum was modified with a nicely made extension.
Being a purest, I talked to the factory about restoring this amp to two tubes.
They suggested I leave it as is. It would probably do more harm than good
messing around with it.
Click on thumbnails below for larger image.
Rear of amp
showing serial number
RF area showing
modified exhaust plenum
Alpha Amplifier Page
Created: April 29, 2007.
June 15, 2013
© Copyright 2007, PakRatz, Corpus Christi, Texas, USA