Here is a hybrid Fisher power amp/power supply pulled from a 1965 Fisher Ambassador Console. It is normally used with a preamp/tuner but can be modified as a stand-alone. The power amp has 8 output transistors and two 6HU8 tubes.
These are costly tubes and these were tested to be like new, very strong. The amp is 75 watts per channel. This is a great project piece and has custom handcrafted mahagony cabinet with plexiglass and perforated steel panels. To my knowledge all parts are original and nothing missing.
A copy of the original schematics and service manual for this unit and complete console are included (last picture). Please see the photos, thanks for looking.