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I wasn't happy with using the radio/phono switch to add a resistor between the last RF to the audio amp, so I ended up using the switch to drop a capacitor on the grid of the second RF tube (1st RF because there's also an antenna RF).
It attenuates the audio by about 30% and it sounds better because it's not overloading the later RF stages. The switch will allow full gain for weaker stations when needed.
The customer said he would never add a phono to the back of this radio and told me to go ahead with that plan.
John
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