[Milsurplus] BC-375 neutralizing cap?

[Ian Wilson]

Thanks, Mike - that makes sense.

73, ian K3IMW

On 8/31/07, Mike Hanz <AAF-Radio-1 at aafradio.org> wrote:
> It's not a neutralizing capacitor, Ian.  The assembly is capacitors 1103
> and 1104 on the circuit diagram.  Sez "Capacitor 1104 is the calibration
> reset, by which the master-oscillator frequency can be adjusted to
> correspond to the calibration whenever the oscillator tube is changed.
> Capacitor 1103 provides thermal compensation for frequency drift
> normally caused by warmup and variation of ambient temperature of the
> oscillator tube."
>
> 73,
> Mike  KC4TOS
>
> Ian Wilson wrote:
>
> >Recently picked up a 4-pin socket (VT-4C type). Included was a
> >neutralizing capacitor. This one appears to have 3 connections, which
> >puzzles me.
> >The central plate is fixed, while the two outer ones are adjustable
> >relative to the
> >centre (each plate is a bulbous circular disk).
> >
> >(Since writing this I took a look at the BC-375 schematic, and don't see any
> >neutralizing caps. But it's a triode rig .. did I miss something?).
> >
> >Looking for enlightenment.
> >
>
>