Pair tube VT-115 equivalent tube, high durability tube, metal tube, tea base, measured value 46/44 (rejected value 25) with white box ※Pairs are determined based on GM values measured with the TV-7 testing machine (Kojima Yosuke)
Accessories: white box
Pair tube VT-115 equivalent tube, high durability tube, metal tube, tea base, measured value 48/46 (rejected value 25) with white box ※Pairs are determined based on GM values measured with the TV-7 testing machine (Kojima Yosuke)
Accessories: white box
※Set of 2 (both tubes are not treated as a pair since their structures are very different), deflection output tubes, made in America, measured value 66/64 (rejection value 38), with original box (box lid is missing) *Measured values indicate GM values measured with the TV-7 testing machine (Kojima Yosuke)
Accessories: original box
1 sold in USA JAN tea base measurement 90 (rejection value 48) with original box ※ Measured value is gm value measured with tv-7 test machine (Yosuke Kojima)
Accessories: original box
Pair tube, subthermal beam tube, made in China, seems to have been used in the company's power amplifiers, etc. Measured value 66/64 (rejected value 44) with replacement box*Pairs are determined based on gM values measured by the testing machine TV-7 (Kojima Yosuke)
Accessories: replacement box
Pair tube, subthermal beam tube, made in China, seems to have been used in the company's power amplifiers, etc. Measured value 68/66 (rejected value 44) with replacement box*The pair is determined based on the gM value measured by the testing machine TV-7 (Kojima Yosuke)
Accessories: replacement box
Sold 1 bottle ECC82/12AU7 high reliability tube 6189 compatible ball rib plate made in Germany, measured value 94 (rejected value 56) with original box ※The measured values indicate gM values measured with the testing machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube 6BQ5 compatible ball pentode tube measurement value 66/66 (rejection value 50) with original box SIEMENS print is printed, but it was determined from the structure and date code that it was made by Ei (made in Yugoslavia) ※The pair was determined based on GM values measured with the TV-7 testing machine (Kojima Yosuke)
Accessories: original box
Pair tube 6CA7 compatible ball made in Russia, measurement value 46/44 (rejection value 30) with original box*The pair is determined based on the GM value measured by the test machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube Russian lot: 0202/0107 measured value 36/36 (rejected value 25) with original box*Pairs are judged based on gM values measured by testing machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube 6L6WGB compatible ball Russian short base measurement value 42/42 (rejected value 25) with original box*Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube 6L6WGB compatible ball Russian short base measurement value 42/42 (rejected value 25) with original box*Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube 6CA7 compatible ball made in Russia, measurement value 46/44 (rejection value 30) with original box*The pair is determined based on the GM value measured by the test machine TV-7 (Kojima Yosuke)
Accessories: original box