I've featured one like this before with a glass tube for the filament. But this version is super compact and rugged, while also being very simple.
https://www.youtube.com/watch?v=VjzTz2M-o1c
Big Clive
2022-02-14 06:19:19 +0000 UTCBarry Ducote
2022-02-13 19:29:53 +0000 UTCBig Clive
2022-02-10 08:59:59 +0000 UTCNeil Tonks
2022-02-10 04:45:54 +0000 UTC