Uploaded May 2024 | Updated September 2026, 3 weeks ago
A couple of interesting old air-cored transformers turned up. It’s quire rare to find these in high voltage power supplies even in back in the days of vacuum tubes (valves). For novelty, I decided to have a go at driving these transformers with tube drivers as they were intended and investigate the design further.
CONTENT:
00:00 - Intro
00:50 - 2nd circuit
01:58 – 1st circuit detail
02:09 – driver tube 6B/254M
03:01 – Circuit diagrams
04:12 – running and testing the larger transformer
05:45 – electrodeless tubes running with coil
07:58 – 2nd transformer running
08:18 – inside potted transformer construction.
08:24 – image of plasma globe before streamer break out.
A couple of interesting old air-cored transformers turned up. It’s quire rare to find these in high voltage power supplies even in back in the days of vacuum tubes (valves). For novelty, I decided to have a go at driving these transformers with tube drivers as they were intended and investigate the design further.
CONTENT:
00:00 - Intro
00:50 - 2nd circuit
01:58 – 1st circuit detail
02:09 – driver tube 6B/254M
03:01 – Circuit diagrams
04:12 – running and testing the larger transformer
05:45 – electrodeless tubes running with coil
07:58 – 2nd transformer running
08:18 – inside potted transformer construction.
08:24 – image of plasma globe before streamer break out.
