NOS RFT ECC81 / 12AT7 is a low noise and low microphonic preamp tube. It sounds great and is especially good for guitar amps because of its rugged construction. These RFT ECC81 tubes were made in Germany during the 1960’s.New tube in original boxQuickest shipping from NessTone Tube Sales
Item Tag: NOS Tube
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⭐NEW NOS GERMANY PHILCO PHILLIPS EM84 6FG6 Magic Eye Tuning TUBE TV-7 TESTED
Magic Eye Tuning TUBE. TUBE’s TEST RESULT’s ( Made in GERMANY ). Eye opens and closes! TV-7/u TESTED. I tested these on a High Quality Professonal Hickok TV-7/U Tester TESTED WITH a (TV-7/U)FOR GAS, SHORTS, AND MUTUAL CONDUCTANCE AND ARE MOSTLY STRONG TUBES!
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(4) NOS RFT Germany EL34 Tubes With Test Documentation G1 Bias, Gm, GL, IKP, VG2
Understanding Tube Test Results: G1 Bias, GM, GL, IG2, IKP, VG2. This is from a pulse test and indicates the tube’s maximum current capability. NOS Quad of (4) original RFT Germany EL34 tubes from bulk 100 count cases produced for amplifier builders.
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(4) NOS RFT Germany EL34S Tubes W/Factory Test Results G1 Bias, Gm, GL, IKP, VG2
“Understanding Tube Test Results: G1 Bias, GM, GL, IG2, IKP, VG2 (Roger Modjeski). This is from a pulse test and indicates the tube’s maximum current capability. NOS Quad of (4) original RFT Germany EL34 tubes from bulk case produced for amplifier builders.
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Telefunken E88cc Matched Pair. Curve Traced
I have a good stash of the finest 6922 tube ever made. I will never use all that I have. This pair is new and have been curve traced by Mike at Quicksilver Audio. I’ve also matched them with a George Kaye small tube checker. These are not thrown into a. Old TV tube tester. They are gain matched in a real preamp circuit and curves were generated for each frequency. They will arrive in white boxes. Thanks
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12AU7 SIEMENS ECC82 CHROME PLATE VINTAGE TUBE NOS (1962) *eTracer #SIE2L1
All test within the dataset expected for a new tube on our eTracer curve tracer. Triode #1 – Plate Current = 9.31mA Rp = 8247 Gm = 2072 Mu = 17.1 Corners = PASS. Triode #2 – Plate Current = 9.21mA Rp = 8659 Gm = 1993 Mu = 17.2 Corners = PASS.
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(4) Ultron 7868 Tube NIB USA Tip Top For Fisher 400 Or 500c 7591A With Converter
For type 7591A tubes with proper adapters. (4) 7868 tube Near MINT. Our TV7 does not have settings for 7868. We are able to use adapter and 7591 settings to test them. All Tested as 70 while minimum is 36.
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Raytheon Realistic Lifetime 7591A Tube, Disc Getter, Tests NOS
Vintage 1960’s Raytheon / Realistic Lifetime 7591A vacuum tube. Disk getter, chrome top. Tests NOS @100%+.
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12AU7 5814A GE JAN USAF ECC82 VINTAGE AUDIO TUBE NOS NIB (1963) #12B88
The 5814 is a direct, ruggedized military variant of the 12AU7 and is fully interchangeable. Triode #1 – Plate Current = 10.67mA Rp = 7433 Gm = 2273 Mu = 16.9. Triode #2 – Plate Current = 10.56mA Rp = 7532 Gm = 2249 Mu = 16.9.