Vintage Tung-Sol 6550 (Used)
We have a small batch of used Tung-Sol 6550 tubes. All are tested and matched, and have our standard 90 day warranty. There were a few versions of the Tung-Sol 6550 tube over the years. We currently have the tube from the mid 1960's. This tube has grey 3-hole plates, and triple getter. They were made in the USA at Tung-Sol's Newark, NJ factory.
From Vacuum Tube Valley Magazine: "Detailed, even tonal balance, good bass, but not as much deep bass slam as the Winged "C"/SED 6550C."
Other Tung-Sol tubes6550 Tube Types
Additional Information and Downloads
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Warranty Information and Return PolicyWarranty Period: 3 months
All our tubes are guaranteed for 3 months from the date of purchase. (Any exceptions will be noted on that tube's Warranty tab)
If you receive a tube that does not perform to the manufacturer's specifications, please do the following:
- contact us to get a return authorization
- return it via regular mail within 90 days from when we shipped it, and we will provide an exchange or refund of the full purchase price of the tube.
Returns not related to warranty or defect will be considered at our discretion, and are subject to a 15% restocking fee.
We can not accept returns that don't have an authorization, are past 3 month, or are returned improperly.
These guidelines may be updated without notice.
Ratings & Reviews
by Nathaniel -
These tubes sound amazing in my Primaluna Evo 300 Power Amp. The bass control and extension is fantastic. My bass is taut, nimble, with plenty of slam. The midrange is gloriously tubey, and the treble is smooth, extended, airy and open. These are the best tubes I've tried by far!
They are used, but they arrived in excellent condition and are working wonderfully. And a tiny fraction of the cost of NOS tubes, if and when you can find them.