Trying to build a radio receiver out of household items, garbage, and other junk. The goal is to have everything from scratch except tubes. I have a vast(ish) collection of vacuum tubes, and I have wire. I know how to make capacitors from aluminum foil and other materials, so I have that covered. The tube I will be using is a type 19 double triode, direct-heated cathode. I need only four resistors and a potentiometer for the circuit, but they are a 400 ohm, 100k ohm, 250k ohm, and 3M ohm, with a 50k pot. (see schematic for more details.)
Got the parts to make capacitors, and I have wire for winding the coils, and wire for connections. Going to mount components on a piece of board. ITS A BREADBOARD RADIO!!!!
Anyway, just need to be able to make resistors now, plus a power source, which I could make easily enough. (100VDC for the plate, 2VDC for the filament)