RCA5693 6SJ7Hello – I have a matched pair of Red RCA 5693 6SJ7 Tubes for sale. These are NOS and new in the box tubes. The RCA "Special Red" tubes (5690, 5691, 5692, 5693) were designed for 10,000 hours ...75.00
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RCA 5693 6SJ7 Red Tubes, Matched Pair, NOS, NIB, Tested [Template]
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Member since April 2006
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