Antique Tube Tester Restoration

I picked up an old PAC 954-G tube tester from a ham swap meet for $3. The previous owner couldn't speak...


Single Ended Amp Conversion

I picked up an old tube-based laboratory bandpass filter that was discarded. The challenge in this project...

Expert Pick

Ohmic Hotdog Cooker for MATE 340 Project+

120VAC meets a hot dog, Interesting science results. Hot dogs are essentially resistors, and when a...