2 Vintage Matched
RCA/Tung-Sol
6550
Audio Tubes
Buyer gets both of the tubes in the photos. These tubes were tested in my Maxi Matcher 2 tester & a Hickok Cardmatic tester to make sure these were great. All the tests were excellent, exact match and both tubes test as new. Both of these tubes were made in the USA, by Tung-Sol (branded RCA), in 1972. These are the 3 hole, coke bottle version.
These are getting scarce and are a high end tube used by most of the professionals. Great for any audio amplifier. These tubes are what audiophile & guitar enthusiasts are looking for. The tubes will come in their original RCA 6550 boxes, as shown. These tubes are lightly used. Please view all the photos carefully, as they are a big part of the description of all vintage tubes. I will pack carefully & ship very quickly.
Matching RCA codes: 7209 (1972)
Maxi Matcher 2 test results:
32.6 MA (plate current) 4.31 Mhos
35.6 MA (plate current) 4.37 Mhos