Type: 6SL7 5691
Manufacturer and factory: RCA PHILADELPHIA
Year of production: 1950
Structure's features: triple mica, double square getter on the top, black plate red base
Rating : 1
Original package : NO
WE HAVE FOUND A LOT OF THESE VERY RARE TUBES, THEY ARE CONSIDERATED THE BEST 6SL7 US PRODUCTION
SINCE WE GOT REALLY A BIG LOT, I THINK WE ARE THE ONLY ONE COMPANY THAT CAN OFFER A PERFECT 5% MATCHING BETWEEN THE FOUR SECTIONS AND A VERY GOOD PRICES !
PRICE FOR PERFECT MATCHED PAIR
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