6CA4 SYLVANIA VACUUM TUBE
Item Tag: SYLVANIA
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Sylvania 5751 USA Short Gray Plate Halo Getter NOS Strong Tested Low Microphonic
Up for sale is a nice Sylvania 5751 vacuum tube with original Sylvania box, tested strong and well-balanced. This tube tested with gain readings of 80 / 81, showing excellent balance between both triode sections. Transconductance / mA readings were 1.71 / 1.63, also very close and strong. It was also tested for microphonics and noise. Low microphonics — tap is audible when the tube is tapped, but it dies out quickly with no ringing or excessive feedback. A very nice choice for audio use, guitar amps, hi-fi, phono stages, preamp circuits, and anywhere a quality 5751 is desired
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Sylvania 2A3 Vacuum Tube Electronic Tube Made in USA Sylvania 2A3 Model
Sylvania 2A3 Vacuum Tube Electronic Tube Made in USA Sylvania 2A3 Model
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NOS SYLVANIA JAN TYPE 83 TUBE
NOS SYLVANIA TYPE JAN TYPE 83 VACUUM TUBE FROM A SEALED CASE OF 50. HARD TO FIND HICKOK RECTIFIER REPLACEMENT. NOS TUBE IN ORIGINAL BOXES AS MADE BY SYLVANIA. I DO COMBINE SHIPPING AND REFUND UNUSED POSTAGE.
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(2) Sylvania JAN-12AX7WA Mil Spec Tubes Gray Plate O Getters Tests Strong TV-7BU
(2) Sylvania JAN-12AX7WA Military Spec Preamp Tubes | Gray Plates | O Getters. Tube 1 tests at 52/54 and tube 2 at 46/50 with 32 being the minimum score for a good tube (with 65% life remaining).
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2 Very strong new in the box 12AX7WA / 12AX7 tubes #40006
2 strong tv7 tested very strong new in the box never used mil spec sylvania 12AX7WA tubes.
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2 SYLVANIA 12AX7 VACUUM TUBES 5
HERE IS A VERY STRONG PAIR OF SYLVANIA 12AX7 VACUUM TUBES. THESE TUBES BOTH TEST EXCELLENT AT 100% FOR EMISSION ON BOTH TRIODES WITH NO SHORTS OR GRID LEAKAGE. TESTED ON A B&K TESTER. BALDWIN ORGAN LOGOS.
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NOS Sylvania 5751 SELECTED Tube 3x Mica O-Get GB5751 12AX7 ECC83 12AX7A 7025
Here we have for sale is an excellent rare NOS tested Sylvania FAA 5751 tube. Red tip SELECTED tube Premium quality FAA Aviation grade tube. Outstanding strong tube with excellent BALANCED triodes and years of life to enjoy.
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12AX7 ECC83 SYLVANIA BLACK-PLATE 17mm SQUARE 45º GETTER 1950s TUBES NOS 1,2 or 3
SYLVANIA U.S.A.12AX7 / ECC83. NOS 12AX7 / ECC83 BLACK-PLATE. 12AX7 = ECC83. 1955 SYLVANIA USA JHS 12AX7. Here’s your chance to upgrade to a SYLVANIA 12AX7 TUBE! JHS 12AX7 “SYLVANIA USA”. RARE “SQUARE” GETTER.
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12AX7 TUBE SYLVANIA TESTED & BOXED VINTAGE COMMERCIAL SURPLUS
Boxes might show wear from being in storage. Everything can be resolved without leaving a negative feed back. PRICES BASED ON AVERAGE SOLD PRICES. Call for technical specs.