Matched Pair RCA/Philips ECG 6550 Welded Plates tubes - Very Strong

For sale is one matched pair of RCA 6550 straight sides with welded plates tubes branded for Philips ECG . Tubes are very strong and perfectly matched. They have been tested in both tube tester and run for over an hour in McIntosh 275. Great, strong & transparent sound. This is one of the best sounding 6550 ever created.
Test results in millimho (min: 5.0) Tube 1: 12.0 Tube 2: 12.0
No leaks, shorts or microphonics. --------------------------------------------------------------------------------------------- Welcome to the Tube Maze Store:
I specialize ONLY in audio tubes and DON'T sell tubes that I can't test in my multiple tube amplifiers. Each tube goes through a very thorough testing process - first in tube testers (Heath IT-3117 and/or Hickock 6000A) and then in several tube amps to verify that it sounds superb.
If you are not sure which tube to buy or which tube would work the best in your system - send me a message! I'm very passionate about tubes and would love to help you. Check out my other items and add me to your favorites list - there will be more reasonably priced, high quality tubes coming to the store.
Bid & Buy with confidence. I offer 7 days money back guarantee. If you don't like (and I mean it!!!) the tubes you purchased, please contact me to arrange the return (you would only
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