Ballast Tubes & Cords
Article on Ballast Tubes and Resistance Line Cords
Article on Ballast Tubes and Resistance Line Cords
Article on how to by-pass defective IF and Audio transformers
Article on how to change Grid Bias using batteries to be automatic
Article on substitutes for Magic Eye and Tuning Indicators, and tips to rejuvenate weak tubes.
Article on how to reform Electrolytic capacitors
Article on how to rejuvenate vacuum tubes
Article on substitutes for the 01A, X99 and WX12 tubes using type 30 and 31 tubes
Article covering possible substitutes for the WD11 tube.
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