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40-180. Pushbuttons work, manual tuning doesn't !!!SOLVED!!
Patrick
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Posts: 365
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Joined: Oct 2014
City: Winter Haven, FL
#12

09-18-2015, 01:24 PM
O.K. Rechecked everything. Removed the variable cap & checked it. Went through the adjustments again. Basically the same thing: pushbuttons work all across the frequency range, AND I can adjust the 19A and 21B compensators to 1400hz. However, I cannot adjust the 19 compensator. This type has a nut on the top with access through the chassis. I even removed the nut, and used Deoxit and contact cleaner. Still no oscillations at 580hz. I moved the variable from fully meshed to unmeshed, while feeding the 580Hz, and tweaking the 19 compensator, but can't pick it up anywhere.
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RE: 40-180. Pushbuttons work, manual tuning doesn't - by Patrick - 09-18-2015, 01:24 PM



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