That number sounds familiar, but I can't say for sure until I find the box that the remaining parts are in. I have moved twice since I packed them. I remember buying them from a surplus shop in the late 60's. I got a 100 piece bulk pack Styrofoam container for $20. They must have been hard to blow since I still have some left after 50 years!
When I was preparing to move everything I owned about 1200 miles after my Motorola career ended, I trashed things I didn't want to move. This amplifier was one of the casualties. It was a "booster" made to be driven from the speaker terminals of a 5 to 10 watt guitar amp. It used 6 of those transistors and made about 250 - 300 watts into a 4 ohm load at an untold amount of distortion.
I was about 16 or 17 years old when I made it. I used a jig saw and a nibbling tool to cut the chassis. My construction skills and tools have improved a bit since then. It had been stored in a shed outside for 40 years or so, but I plugged it in to see what would happen. As expected one of the filter caps started spewing it's guts, so I kept the heat sinks / transistors and tossed the rest.
But you might want to share the power amp's circuitry without the PSU?
The 250 watt amp seen here, and the 2N3773 amp I made shared the same schematic. It is the utterly simple driver transformer "totem pole" design from the mid 60's often seen with germanium transistors. I started making them as a kid using the big TO-36 doorknob transistors lifted from car radios in automotive junkyards. I wound my own driver transformers using three strands of Radio Shack enameled wire on whatever transformer core I could find.
This amp used 6 X 2N3055's. Three in parallel, each with their own emitter resistors, on the top, and 3 on the bottom. Power was a bridge rectifier running on a 75 volt 4.5 amp transformer (about 100 volts). A large cap was placed in series with the speaker since I didn't have a bipolar supply.
The BIGGIE was made from a heat sink that I found complete with 24 of the 2N3773's some time in 1970. They were wired in the same manner, as two banks of 12 parallel transistors and operated from rectified 115 volt line (about 150 volts). An accidental short across the output set the speaker wire on fire, but did not blow any parts! It was used as the PA for a rock band in their outdoor shows, driven by a Kustom 100 watt PA amp. The driver transformer provided isolation from the line for the input side.
The circuit is the same as the 2N2147 drawing. I just used bigger parts. The 2N3055 version used an old 6.3 volt heater transformer for the driver transformer core. The BIGGIE used an old power transformer for the core.
I did not have any means of measuring distortion or accurately measuring power output at the time I made these. I was 17 or 18 years old with a VTVM set on AC volts. My "load resistor" was a long piece of wire wrapped around a piece of plywood, or the heating element from a household heater.