4P1L Pentode tube
$5.00
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Russian audiophile 4P1L tube with direct heating & lowest anode voltage. The pentode is fine up to 100 Mc/s. Equivalent to the 4L1S / 4LS1. Copy of RL2 / 4P6 Wehrmacht tubes. New, old stock OTK stamp (State quality control) Svetlana factory, Saint Petersburg
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