3 ms·
Hmmmm. Wonder if you could just induct through the glass with coils on each side? Seems perfect for high voltage applications?
by smlacy 4mo ago
Hmmmm. Wonder if you could just induct through the glass with coils on each side? Seems perfect for high voltage applications?
- K0balt 4mo agoInteresting idea! Wouldn’t have to be particularly high voltage either.
- bluGill 4mo agoThat depends. Often vacuum tubes are used with DC (that is a rectifier) in some form though, in which case you can't do this since induction depends on AC. I'm not sure what purpose the article had for a triode though, depending on their application this might work.
- tliltocatl 4mo agoIf you want a gas discharge tube and not vacuum, you can even drop the coil on the inside: https://hackaday.io/project/194683-plasma-toroid-sky-guided-pcb-edition https://hackaday.io/project/194683-plasma-toroid-sky-guided-... But most hollow-state devices run on either DC or pulses, so coupled inductors wouldn't work.
- smlacy 4mo agoWouldn't work ... without additional electronic components.
- tliltocatl 4mo agoThan you can skip the hollow state part altogether. And any plastic-package parts would screw your vacuum up badly - if it survives sealing and bakeout that is.