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Thread Starter 
This Classified is Closed

For Sale:
FS: beautiful NOS matched pair of Sylvania red-base 5691 tubes in original boxes

Will Ship To: Anywhere

Absolutely beautiful pair of 5691 (which are 6SL7 equiv) tubes, NOS in original boxes. Almost certainly made by RCA, but branded Sylvania. Tested great on my B&K 606.

$120 plus shipping.