>
>I have just acquired a very nice old
>National NCL2000 amp (along
>with the matching NCX5 transciever &
>NCX-A supply ) that
>hasn't been turned on in about 20 years.
>I intend to bring it up
>slowly to reform and avoid shock to the
>old power supply electrolytics.
>I have a 120vac variac, but none for
>220, and I believe this should
>work out OK, but what are the "gotchas"
>involved? I feel that I should
>remove the tubes as a precaution against
>any possible damaging flashover.
>Any suggestions from those who are
>familar with this amp?
The designers rather obviously did not bother to read the RCA
Transmitting Tube Manual. In stock config., the amp. is potentially an
8122-screen-assassinator. If you are interested, I can mail you a copy
of a schematic with needed changes. With some changes and run in AB1
instead if AB2, the NCL-2000 is clean enough to avoid being tarred and
feathered at the next DX convention.
- later, Dick
Rich...
R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
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