Triode #1 – Plate Current = 0.82mA Rp = 70078 Gm = 1333 Mu = 92.4 Corners = PASS. Triode #2 – Plate Current = 0.92mA Rp = 73808 Gm = 1274 Mu = 94.0 Corners = PASS. 17mm long grey plates, date code of “3225850-1” indicates production in December, 1958.
Item Tag: United States
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1960s 12AX7A ECC83 Tung-Sol Tube Gray Long Plate O Getter TV7 Test Good TS7-4
1960’s 12AX7A / ECC83 Tung-Sol Tube. Made In USA. Triode:1 Tested Good : 41/ 32 Baseline. Triode: 2 Tested Good: 43/ 32 Baseline. Top O Getter. NOS tubes fall within the GM range published in the RCA Receiving Tube Manual; variation above/below average is normal.
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Tung Sol & Raytheon 12AX7 Tubes Long Gray Ribbed Plate 1 D & 1 O Getter Pair
Up for sale is a pair of Tung Sol & Raytheon 12AX7 tubes long gray ribbed plate, the Tung Sol has an angled D getter, and the Raytheon has an O getter.
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tung sol 12ax7 tube weaker testing
weaker testing tung sol 12ax7 tube, tested at, 1200-1200, with min good tube at 875, on a hickok 539c, no shorts, leakage or gas. more items like this in my store, check it out !
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1960 Tung-Sol 12AX7 (ECC83) Tube – Hickok TV7B tests @ 48/43, Min:32/32
(Triode#1 / Triode#2). type 12AX7 vacuum tube. Hickok TV-7B/U tested. Hickok TV-7B/U is a mutual conductance (Gm) type tube tester. One tube,circa 1960, USA made by Tung-Sol . Tube features 17mm-Gray-Ladder-plates and a top-mounted ‘rectangular’ getter construction.
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12AX7 & 12AX7A Electronic tubes Untested
The product is a pair of 12AX7 and 12AX7A electronic tubes, specifically the 7025/12AX7 model. These vintage tubes are untested and originate from the United States. They are a crucial component in vintage audio and video systems, known for their high quality and reliability. Perfect for collectors or enthusiasts looking to restore or build their vintage electronics, these tubes have a rich history and are a valuable addition to any collection. See pictures for what is included.
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Tung-Sol 7025 12AX7 Long Plate Preamp Tube
Long Grey Plate, Halo Getter. We cannot be responsible for what tubes test in another tester.
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Strong TUNG-SOL Long Gray Plate Angled D Getter 12AX7 / ECC83 Tube – 94/98
Strong TUNG-SOL Long Gray Plate Angled D Getter (Foil – 2 Dimples) 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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1950s 12AX7 ECC83 Tung-Sol Tube Black Plate Square Getter TV7 Test Good TS7-14
1950’s 12AX7 / ECC83 Tung-Sol Tube. Made In USA. Triode:1 Tested Good : 37/ 32 Baseline. Triode: 2 Tested Good: 38/ 32 Baseline. 12AX7 Minimum Range: 32. 12AX7 Nos Range 45 +. Top Square Getter.