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66B missing dot redux expert help requested
sk373a@gmail.com
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Posts: 6
Threads: 1
Joined: Jan 2022
City: Fredericksburg State, Province, Country: Virginia
#7

01-30-2022, 06:32 PM
Well Gents the project is finally complete.  I changed the on/off volume switch today and it was a HUGE improvement to the audio quality.  No more very loud static pops and scracthiness.  The old pot was non linear in its movement plus it was ohming out at 900K and would actually increase at first when moving the shaft.  I installed 500K switch/pot part # R-VS-500KA from Antique Electronic Supply.  I had to shorten the shaft by 1/4 inch and use a file to make the flat spot for the wood knob to slide on.  Thanks again for everybody’s help and time answering my questions.

All the best,

Mark
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RE: 66B missing dot redux expert help requested - by sk373a@gmail.com - 01-30-2022, 06:32 PM



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  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration