No diamond logo. Closely balanced sides for gain. Hickok 539C and Digital Maxi-Preamp 2 Tested. Test results will vary between testers as it is not an exact science and all testers have their limitations.
Item Tag: ECC81
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Matched Pair Telefunken ECC81 Tubes Germany Diamond Emblem Test NOS on TV-7B/U
Tube 1 tests balanced at 92/92 and tube 2 at 92/88 with 50 being the minimum score for a good tube (with 65% life remaining).
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1PC Gold plated NEW Audio Valve Vacuum Slovakia JJ ECC81 Replace 12AT7 6201
1PC Gold plated NEW Audio Valve Vacuum Slovakia JJ ECC81 Replace 12AT7 6201 Price is for one PC, buy 2pcs, we will send matched pair Thank you!.
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1PC Silver plated NEW Audio Valve Vacuum Slovakia JJ ECC81 Replace 12AT7 6201
1PC Silver plated NEW Audio Valve Vacuum Slovakia JJ ECC81 Replace 12AT7 6201 Price is for one PC, buy 2pcs, we will send matched pair Thank you!.