On Tue, 11 Mar 2008 11:55:05 -0400, Scott Dorsey wrote:

It's another one of those damn TV sweep tubes, which folks have pressed
into RF service. They are nearly unobtainable because the bootleg CB
guys have blown so many of them up.

Which is really too bad, because they made super pass tubes in regulated
supplies and good HiFi outputs when trioded. Not to mention insane power
in PP pentode as a geetah head :-)

Cheers,
__
Gregg

geek wrote:
On Tue, 11 Mar 2008 11:55:05 -0400, Scott Dorsey wrote:

It's another one of those damn TV sweep tubes, which folks have pressed
into RF service. They are nearly unobtainable because the bootleg CB
guys have blown so many of them up.

Which is really too bad, because they made super pass tubes in regulated
supplies and good HiFi outputs when trioded. Not to mention insane power
in PP pentode as a geetah head :-)

When I was a kid, everybody was converting military and commercial surplus
radios over to use sweep tubes instead of expensive transmitting tubes.

These days, everyone is converting ham rigs intended for sweep tubes over
to use transmitting tubes, because sweep tubes are so expensive.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."