December 2020 Meeting

Virtual Zoom Meeting

Sunday, December 20th

Zoom meeting introductions at 1:00, followed by Show and Tell, and the presentation

Presentation Topic:  Sylvania Tube Deciphered

Presenter:  Paul Hart 

Details regarding joining the Zoom Meeting:

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Replacing Power-Cord Resistance Elements or Ballast Tubes

Have an old radio that used power-cord resistance elements or ballast tubes that are no longer available? Ed Lyon has taken Charlie Rhodes' equations for determining how to replace those with modern-day capacitors and created some charts to guide your repairs. Published in the September 2017 Radio Age, they are provided here for your use. 

To view the charts and related article, click here.

Additional information