Rectifier Tubes - RetroSweetlo

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Svetlana black anode, double rectifier, tested on L3-3, equivalent to 5U4G/5U3C

Svetlana gray anode kenotron, tested on L3-3, equivalent to 5U4G/5U3C double rectifier

Soviet kenotron rectifiers, matched quad tested on L3-3, similar to 5U4S/5Z4/CV1863

Svetlana double anode kenotron, NOS vintage stock, power supply rectifier

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