[ARC5] BC-454-B, tough problem
WA5CAB at cs.com
WA5CAB at cs.com
Fri Nov 18 16:54:00 EST 2016
Not that it would appear to have had anything to do with the problem,. but
the only lead going through the tuning capacitor covver is the mixer grid
lead.
In a message dated 11/18/2016 15:04:18 PM Central Standard Time,
ianmwilson73 at gmail.com writes:
> I've been resurrecting a BC-454; everything worked FB except for the
> local
> oscillator stage (triode part of the 12K8 triode-hexode).
>
>
> The triode plate voltage appeared to be absent. This part of the circuitry
> is a little obscure, since there is a 200k plate series resistor that is
> contained
> in the RF oscillator subunit of the plug-in coil thingy. Also, the plate
> supply
> for this stage is routed through the capacitor cover.
>
>
Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480
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