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Old 08-15-2013, 03:33 PM
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DavGoodlin DavGoodlin is offline
Motorola Minion
 
Join Date: Aug 2011
Location: near Strasburg PA
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Regarding the schematic, part labeled 43 - .02 mfd capacitor feeds back to screen grid G2 on the 12SQ7 first audio tube. Some Zenith radios have this also.

Question 1: Is this de-emphasis feedback to increase low-frequency response?
Question 2: RE Part 38, Often the 35L6 audio output cathode resistor can be bypassed (paralleled) with a 100mf-16v capacitor to increase bass. Does part 43 accomplish this?
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