I have 1 excellent strong Very Nice Telefunken diamond Bottom Smooth Plate 12ax7 tube.
Item Tag: 12AX7
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1 Strong Test Telefunken Smooth Plate 12AX7 tube
Used Test strong on TV7 with min good reading of 32.
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1 Strong Test Telefunken Ribbed Plate 12AX7 tube
Used Test strong on TV7 with min good reading of 32.
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3 New In Box Gain Matched Tung-Sol 12AX7 Reissue Preamp Tubes
New In Factory Box Gain Matched Trio (3 tubes) of Tung-Sol 12AX7 Reissue Preamp Vacuum Tubes Maxi-Preamp 2 and Hickok Tested. Closely matched for Gain within ~ 2% ! Tubes in test photos is actual tube you will receive.
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12AX7 TUNG SOL 17MM GREY PLATE VINTAGE AUDIO TUBE (1958) *eTRACER* #12C38
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.
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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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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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1956 Tung-Sol 12AX7 (ECC83) Tube – Hickok TV7B tests @ 44/45, 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 1956, USA made by Tung-Sol . Tube features 17mm-Gray-Ladder-plates and a top-mounted ‘rectangular’ getter construction.
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12AX7 TUNG SOL 17MM GREY PLATE VINTAGE AUDIO TUBE (1954) *eTRACER* #12C35
Triode #1 – Plate Current = 1.00mA Rp = 60640 Gm = 1581 Mu = 95.9 Corners = PASS. Triode #2 – Plate Current = 1.07mA Rp = 61426 Gm = 1607 Mu = 98.7 Corners = PASS. 17mm long grey plates, date code of “322435-1” indicating production in August, 1954.