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Vintage Matched Pair (2) Sylvania 7591 Vacuum Tubes (Realistic/RCA) Made In USA




Item History & Price

Information:
Reference Number: Avaluer:18343010Type: Vacuum Tube
Brand: RCA
Original Description:
Vintage Matched Pair (2) Sylvania 7591 (Realistic/RCA) Vacuum Tubes Made In USA.  I put these together based on test results using Hickok/Western Electric Cardmatic KS-15874-L2.  Gm values = 68 (branded Realistic) and 70 (branded RCA) 50 is minimum and I included a picture of one of the tests.  Based on construction I believe both are made by Sylvania.  The only difference I can see is that the Realistic piece has gold pins. The graphics are a little worn but they a...re legible - also a bit dirty from storage but if you don't care about cosmetics this is an excellent set. Guaranteed as describedand to your satisfaction. Shipping in continental USA is $5. I will shipinternationally for $25



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