Two Tung-Sol long gray plate square getter JTL 12AX7 vacuum tubes tested perfectly matched at 100/100% Gm each. 100% represents what you would expect from a NOS tube on our Amplitrex and 65% is considered too low to use.
Item Tag: United States
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12AX7 TUNG SOL 17MM GREY PLATE VINTAGE AUDIO TUBE (1965) *eTRACER* #12C39
Triode #1 – Plate Current = 1.00mA Rp = 63458 Gm = 1600 Mu = 101.5 Corners = PASS. Triode #2 – Plate Current = 1.00mA Rp = 65457 Gm = 1539 Mu = 100.7 Corners = PASS. 17mm long grey plates, date code of “3226549-3” indicates production in December, 1985.
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Vintage Tung-Sol 12AX7 Vacuum Tube for Guitar Amp Preamjp Tested
Vintage Tung-Sol 12AX7 audio tube in very good used condition. Tests strong and was also tested in my 5F1 Champ and has an excellent tone. Please ask any questions before purchasing, will ship the following business day after payment is received, thanks for looking!
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tung sol 12ax7 long plate tube matched sections made in usa
nice tung sol 12ax7 tube, tested at, 1400-1400, min good tube is at 875 on a hickok 539c, no shorts leakage or gas. more of these items in my store, check it out !
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1950s 12AX7 ECC83 Tung-Sol Tube Gray Long Plate Square Getter TV7 Test NOS TS7-1
1950’s 12AX7 / ECC83 Tung-Sol Tube. Made In USA. Triode:1 Tested NOS : 51/ 32 Baseline. Triode: 2 Tested NOS: 48/ 32 Baseline. 12AX7 Minimum Range: 32. 12AX7 Nos Range 45 +. Top Square Getter.
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Strong Olympic by TUNG-SOL Long Gray Plate Angled D Getter 12AX7 / ECC83 Tube
Strong Olympic by TUNG-SOL Long Gray Plate Angled D (Foil w 2 dimples) Getter 12AX7 / ECC83 Tube. Great Sounding Tube. Tube passed ALL tests. MINIMUM reading is 70%, NEW (NOS) reading is 100%+ and MAX reading is 130%.
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2 x JTL-5751 (12ax7) Tung-Sol Tubes*D-getter*Very Strong Matched Pair*#6
2 x JTL-5751(12ax7) Tung-Sol Tubes. Tubes may also be operated under the test conditions for extended periods to be sure that it is stable. What were your tubes tested at?. Bogey(100%) = 1200/1200 @ 1.2 & 1.2 mA +/- 10%.
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7025/12AX7 Tung-Sol Tall Plate MaxiPreamp2/TV7 tested (1) tube lot
I test all tubes thoroughly and with great care. I test to the best of my ability, and I report all results honestly.
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1 Tung-Sol 12AX7 Vacuum Tube – 1960’s Vintage ECC83 Audio Twin Triode
1 Tung-Sol 12AX7 aka ECC83 Vacuum Tube. Hickok TV-7D/U tests read 50/48. Most of the painted labeling has worn off of this tube.