>
>Wondering what the amp is rated at, ie is it an L4-B/SB-220 power class amp?
>I assume it is 2000 watts input power.
As I recall, RCA rated the tube at 2500v/400mA.
>I understand is runs a pair of 8122s.
>Are these hard to find now?? Costly?? Will it "work" on the WARC bands
>as-is?? Built well??
>
>Info and comments appreciated.
>
The ncl2000 screen supply will destroy the tubes in seconds during a
glitch. A shunt screen regulator using a string of zeners is needed.
The bias supply has some probs. that need to be fixed. National chose
not to use RCA's recommended cathode feedback circuitry. , , I have a
diagram incorporating the mods. I wud be happy to mail u a copy.
Rich...
R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
--
FAQ on WWW: http://www.contesting.com/ampfaq.html
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
Search: http://www.contesting.com/km9p/search.htm
|