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Homebrew Adjustable power supply. 0-320v, variac feeding the primary of the power transformer, full wave center tap diode rectifier, 0-150 mA meter. Made it out of what I think was a wireless microphone receiver. Good for powering homebrew vacuum tube projects. "Finished" it today, but will need to go back and put in a fixed filament supply, 12 and 6 volts. I'm considering having both raw AC and filtered DC filament supplies.
I don't think I've seen a "GM Delco" tube before! This one came out of the early 1950's Dumont console TV set thats still slowly decomposing on my patio.
Inside of the Ultracleaner 60 thing. Grid leak down under the socket that used to have an 812 in it.
11/29/08 TRW swap scores, a J-38, some misc hardware, and an R26/Arc-5 (80m) and the accompanying cranky knob.
TRW swap meet scores, 8/29/09
Heathkit Twoer, coils and coil stock, box of misc parts, a big ol variac, some 6883's, and whats left of a poor arc-5 tx that "is just an antenna tuner now."
Arcus Fivii... the one lone "transmitter" on the end appears to have 811's and an ART-13 mod transformer inside!
Scores from W6LQN estate
Here it is almost done when i had to hang it up for the day. The filaments all light (of course the tubes were in it when i tried!) up off of 12 volts, all the cap and resistor changes are done, I just need to add a key jack and resistor to the final cathodes then I'm ready to fire it up and move it down to 3.5 mc. Oh, and a BNC antenna jack...