[Boatanchors] National NC-190 Tube Weirdness?

qrv at kd4e.com qrv at kd4e.com
Sun Jul 27 16:36:18 EDT 2014

I'm checking voltage-ratings for the caps I need to
order & have spotted some anomalies ...

The NC-190 manual Top View shows 6BA6's (IF amps
V4 & V6) but there are 12BA6's in the sockets.

Also, there's a 12AT7 where it says (V8 audio Output
Amp) should be a 6CW8.

I think the rest are as-described in the manual.

Can anyone explain these anomalies & what changes I
might anticipate in cap & resistor values as a result?

Thanks - David


David Colburn, KD4E - Nevils, Georgia USA

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