Rick Brashear wrote:
No doubt, they are noisy rascals, hot too. Geoff, I'm glad you
mentioned 450TL. I have one I acquired with an old BC-610 someone had
hacked up trying to make an amplifier. Is there a way to test more
than the filament other than putting it in a working amplifier? I'd
kind of like to build something around it, but would hate to get it
all complete only to find the tube was too weak or dead.
Rick/K5IZ
Other than testing the filaments, no - I don't know of a way other than
comparing it in an amp designed to use 'em.
Speaking of which, Rick... I've got an amp that someone started to
home-brew, designed around a 450T. Filament is 220v primary, at 7.5v
big peice of copper tubing for a coil, tapped for 80, 40, 20 and 10m.
And, I have a brighly glowing 450TL to go along with it.
If you're interested, I'll send some pictures of it.
--
73 = Best Regards,
-Geoff/W5OMR
