1962 Mullard 12AX7. B2H4 I61 Closely matched on my Maxi-Preamp 2 digital tester. See photos for results.
Item Tag: Mullard
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⭐️1pc Siemens 12AX7 ECC83 Coded TV7 Tested Strong Life Test O-Getter Short Plate
12AX7 ECC83 12AX7A. O Getter Tube. Short Grey PLATE. TUBE’s TEST RESULT’s TESTED WITH a (TV-7/U) FOR GAS, SHORTS, AND MUTUAL CONDUCTANCE AND ARE MOSTLY STRONG TUBES! Perfect Balanced “short” Grey Plates!
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2-Mullard 12AX7 ECC83 Labeled for Fisher Vintage Electronics
For your consideration are two Mullard 12AX7 ECC83. These tubes were tesed on a TV-7U where the minimum reading is 32 and the reading for a new tube is 49 or better.
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Matched Rare Pair of Mullard 12AX7 Electrohome Tubes – Amplitrex Gm Scores 100%
All tubes are tested and or matched on the Amplitrex AT1000 digital tester, in. See Pictures for Test Scores. For best results – before you install your tubes be sure that your power is off, that the tube sockets are tight and cleaned periodically with a product like Detoxit 100%.
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12AX7A/ECC83 “RCA” Mullard MaxiPreamp2/TV-7 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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Matched Pair, 2 X Mullard 12AX7 / ECC83 tubes, Brand NEW in Box
Price is for 2 tubes, Matched Pair, Mullard 12AX7 / ECC83 tube from New Sensor Corp of NY, USA. (they bought the right to re-manufacture these tubes). Made In Russia.
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LOT OF 5 MULLARD 12AX7/ECC83 TUBES I61 TYPE (1959-1964 SHORT PLATE) LOW TEST
Marked “Dumont”, I61 B3C3, reads 38/40 (1022-348 date code 1963). Marked “Eico”, I61 B3D5, reads 43/34 (1022-412 date code 1964). Marked “Heath”, I61 B9D, reads 35/36 (1022 941 date code 1959). Marked “Heath”, I61 B9E, reads 30/36 (1022 941 date code 1959).
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12AX7/ECC83 Daystrom 161 code Mullard MaxiPreamp2/TV-7 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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3- MULLARD BLACKBURN 12AX7 ECC83 TUBE (I61-series circa 1961) Strong Trio?
All three tubes tested 140+/140+ on my Eico 666 tube tester where 80 is listed as a minimum value. Nice strong trio with gray plates and halo getter. Please email with any questions or concerns. Thanks for looking!