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RCA 5691 / 6SL7GT - red base, Raytheon label

CA 5691 / 6SL7GT - red base
Price: $84.00
1 in stock
Item Number: 883RAY
Manufacturer: RCA
This 1950s RCA 5691 is a premium industrial 6SL7GT tube. It has a short bottle, black plates, extra support rods, and a triple mica. The red base has yellow print with the Raytheon logo.

Tube tests as new with very low noise. It ships in its original box with test results for current draw (mA) and transconductance (Gm).
This tube is sold individually. Photo is of the actual tube. Matched pairs, when available, are listed as Item 2004.

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RCA 5691 - red base, matched pair
RCA 5691 - red base, matched pair
Price: $169.00
RCA 5691 - red base, matched pair
The 1961 RCA 5691 tubes in this precisely matched pair are a premium 6SL7 tube type. They have short bottles, distinctive red bases, triple micas and 11 support rods. The are labeled for GE. Both tubes test as new with balanced sections.
TC Tubes specializes in precision testing and matching of vintage and new production vacuum tubes for guitar & bass players, audiophiles, and DIY tube audio enthusiasts. Our website features secure payment options and fast, convenient shipping around the world.

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