This started life as a Varmit XL-1000 amp from Brewer Labs, back in the 70's. It was a brute force GG amp with 9ea 6LF6 sweep tubes...1 x 2 x 6. Since the plate voltage was held to around 900v, the power transformers had to produce a lot of current at fairly low voltage. Additionally, 9ea 6LF6 filaments pull about 18 amps at 6vac, quite a load.
After stripping this to the raw chassis, I was pondering building it back with 9 new 6P45C Russian glass tubes, or perhaps using a voltage doubler and building it with a pair of GI-6B ceramic triodes. I finally settled on a single GI-39B ceramic triode... stay tuned...
