[Milsurplus] 211 Tube Note

[Michael Tauson]

Him, folks,

On Sat, Mar 22, 2008 at 11:15 AM, Hue Miller <kargo_cult at msn.com> wrote:

> at hgher frequencies. In any case, the radio frequency
> grid and plate currents of the UV-211 Radiotron must
> never exceed 7.5 amperes."

Um, they're talking about RF current, not DC.  The 1937 manual says
that, with 1250 volts on the plate, the maximum DC grid current is 50
ma but the maximum RF grid current is 7.5 amps in class C RF amp or
oscillator radio telegraphy use.  Wheee!  That's a whole seabag full
of drive for 130 watts out.

This manual also cranks the output frequency for 100% output to 15MCs
with attendant reductions above that.

Best regards,

Michael, WH7HG