[NJARC] AK 80 question

William S Zukowski n2yeg at optonline.net
Sat Sep 9 18:37:12 EDT 2017


Just restored an AK 80.  After replacing all the caps, noisy resistors, 
two bad tubes, most of the rubber wiring that had most of the insulation 
gone, it actually works.


My question is about the "volume control" (see schematic): It's in the 
cathode circuit of the oscillator, so when it's adjusted, it sounds 
almost like a regeneration control, oscillating, etc..  It also looks 
like the schematic is wrong.  It shows the cathode grounded, which would 
negate any effect of adjusting the control.  It's not grounded in this 
set.  The radio is basically untouched, except for two electrolytic caps 
already replaced.


Thanks, Bill
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