04-08-2020, 05:46 PM
Patrick
Please don't let yourself be confused. The circuit I posted allows you to feed both channels of a stereo source and have a mono output (both channels combined). Notice a 0.1 uF capacitor on the jack, which serves to tie left and right channels together. The 0.1 uF may not result in ultra high fidelity sound, but you aren't going to get that out of the typical AM radio anyhow.
In addition, the closed circuit jack does the switching for you with no need for a separate switch.
If Peter Balazsy says it works, that's good enough for me. I confess that I have not used this myself, but I will if I ever have occasion to perform such a mod in the future. I now regret that I didn't remember this when I added an external input to my RCA C15-3. Having no switch might have been nice.
Please don't let yourself be confused. The circuit I posted allows you to feed both channels of a stereo source and have a mono output (both channels combined). Notice a 0.1 uF capacitor on the jack, which serves to tie left and right channels together. The 0.1 uF may not result in ultra high fidelity sound, but you aren't going to get that out of the typical AM radio anyhow.
In addition, the closed circuit jack does the switching for you with no need for a separate switch.
If Peter Balazsy says it works, that's good enough for me. I confess that I have not used this myself, but I will if I ever have occasion to perform such a mod in the future. I now regret that I didn't remember this when I added an external input to my RCA C15-3. Having no switch might have been nice.
--
Ron Ramirez
Ferdinand IN
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