[ARC5] C-30 missing...

[J. Forster]

Has the cathode resistor been changed or bypassed?

-John

============


> I am curious: in the previously-hacked BC-453B I am presently working on,
> C-30, the 15 mfd 35 VDC cathode-bypass capacitor for the 12A6 audio
> output tube is missing. Apparently the original hacker removed it but
> never
> put it back.
>
> Even so, the audio output from this receiver is very loud. Plenty loud
> enough
> for a loudspeaker. I am using a 600 ohm to 8 ohm transformer feeding a
> Radio Shack small 4" square CB speaker. If I turn the RF gain all the way
> up,
> it will literally drive me out of the shack.
>
> So, is that capacitor really needed?
>
> I thought that if one removed that capacitor, some negative feedback would
> result, and the audio distortion would be reduced, but that the volume
> would
> be reduced also.
>
> FYI, the B+ is 240 VDC under load.
>
> I am copying an NDB, call is MW, here even in the daytime.
>
> Ken W7EKB
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