Front panel is much nicer - ordered parts

I finished the front panel restoration. I repainted the knobs and polished the aluminum. I replaced the dot with a red lacquer stick. The original was white, but I thought the red would look nicer. It's a massive difference from before. Everything looks new except the lettering in places has worn off. I don't really know a reasonable option for that without getting into silk screening.

The reference supply died again. I thought it might have just been a bad connection, but I think the power transistor is dead. I ordered new power transistors and I'm going to replace both with more modern parts. The amplifier works just fine. I tested it. I have three of the amplifiers installed and tested now as well. I need to get a function generator to properly test them, but I've not found a deal on eBay, yet.

I found a date of July 20, 1967 printed on one of the modules. I was 8 years old when this was built. It's amazing that so much of it appears to still work.