Thread: 1948 A.R.C. Tom Thumb Portable Radio
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Old 10-10-2022, 09:13 AM
old_coot88 old_coot88 is offline
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Join Date: Sep 2009
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Pin 3 of the 3S4 is control grid (G1). The only cap going to it should be the coupling cap from the plate of the 1st audio stage. Maybe someone was trying to hack in a feed from an outside source(?).
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