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Detrola 247 faulty Ballast, help me replace it
Jim Berg
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#4

02-13-2010, 02:22 PM
That ballast appears to be black on purpose. Could be loose cement in the base that is the rattle. I could look it up for pin out but I would guess you should have resistance between 3 of the tube pins. Do not check on a tube tester! If filaments in the set light and the dial lamp lights the ballast is good. If getting a universal replacement, beware that some of the socket pins on the tube socket could have been used as "Tie points" and may cause a problem with a different ballast.
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Re: Detrola 247 faulty Ballast, help me replace it - by Jim Berg - 02-13-2010, 02:22 PM



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  1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Other Radios (Non-Philco)