12AX7A/ECC83 Mullard copper post / 161 code 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.
I test all tubes thoroughly and with great care. I test to the best of my ability, and I report all results honestly.
I test all tubes thoroughly and with great care. I test to the best of my ability, and I report all results honestly.
I test all tubes thoroughly and with great care. I test to the best of my ability, and I report all results honestly.
12AX7A / ECC83 SYLVANIA Tube. Made In USA. Triode:1 Tested NOS: 72/ 32 Baseline. Triode: 2 Tested NOS: 77/ 32 Baseline. Top O Getter. No universal test result defines...
Excellent looking tube tests @39/40 GM on B & K 700 Mutual Conductance tester and 92/92 for emissions on B & K Dyna Jet 606 tube tester. See photos...
Up For Sale is a Pair of Superb Westinghouse 12AX7A / ECC83 Square Getter Tubes. A super sounding pair that is matched and balanced, testing at the NOS level,...
Type 12AX7A (ECC83) vacuum tube. (Triode#1 / Triode#2). Hickok TV-7B/U tested. Hickok TV-7B/U is a mutual conductance (Gm) type tube tester. One tube,circa ± 197 0,USA madeby RCA. Tube...
12AX7A / ECC83 General Electric Tube. Triode:1 Tested Good: 42/ 32 Baseline. Triode: 2 Tested Good: 41/ 32 Baseline. Top O Getter. Ribbed Short Plate. NOS tubes fall within...
Visit this seller's eBay Store! Historic TubeMuseum, Tuxedo Park, New York Established in 1928 as a premier research facility in Tuxedo Park, New York, that attracted such brilliant...
Tested on an Amplitrex AT1000.