Resurrecting A Vintage Numitron Board
18:04
The Magic Of Muxing!
19:06
Dissecting An IEE Projection Display!
16:29
DIN-rail lightning strike counter
25:06
Crystal Radios: No Batteries? No Problem!
21:29
Vacuum Tube Tesla Coil Review+schematic!
26:23
Right To Own? Science News!
26:51
Here's what Numitron tubes in an actual product look like
22:21