NOS RCA 5692 Red Basematching pairExcellent matching pair of RCA red base 5692 low noise preamp tubes. Test 2600/2900 & 2700/2900 where 1640 is minimum good on Hickok 539C. Listening tested, excellent sound. Great in Cary...160.00
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NOS RCA 5692 Red Base matching pair premium 6SN7GT [Expired]
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