[ARC5] GO-9 Project: Why the Resistor?

[Bob kb8tq]

Hi

It’s a common oscillator circuit and there’s not a lot of “C” from cathode
to ground. It’s a common fix for the issue. 

Bob

> On Oct 22, 2019, at 5:04 PM, Hubert Miller <Kargo_cult at msn.com> wrote:
> 
> I will have to add this to my list, to look at the schematics for the AT-12, ATR-11, and TBX-4, all of which use a similar level power tube as the oscillator.
> The 'Command Sets' use something similar on the OSC tube, don't they? Vaguely recallng…
> -Hue
>  
> >Hi
>  
> Sure, the bigger the cathode, the more “C” there’s going to be. Also in a high 
> power tube the design probably is optimized for things other than the capacitance
> changing by a couple of pf. 
>  
> Bob
> 
> 
>  
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