Sold per bottle, rectifier tube, VT-244 equivalent tube, made in America, measured value 58 (rejected value 40), model number printing has disappeared ※The measured values indicate GM values measured with the testing machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube EL34/6CA7 equivalent tube English tea base lot: ZD Z/ZD Z double gettering measurement value 40/40 (rejection value 30) with replacement box ※ pair is determined based on gM values measured by testing machine TV-7 (Kojima Yosuke)
Accessories: Replacement box (Elehamo box)
Pair tube EL34/6CA7 equivalent tube English tea base lot: ZD Z/ZD Z double gettering measurement value 44/44 (rejected value 30) with replacement box ※ pair is determined based on gM values measured by testing machine TV-7 (Kojima Yosuke)
Accessories: Replacement box (Elehamo box)
Pair tube, made in England, 6L6G equivalent tube, military high reliability tube, smoke measurement value 42/38 (rejected value 25) *Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: none
Pair tube, made in England, 6L6G equivalent tube, military high reliability tube, smoke measurement value 44/42 (rejected value 25) *Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: none
Pair tube, large beam output tube, 8147 compatible sphere, black plate, double ring, made in Japan for Hi-Fi, with original box ※The pair measures and determines EM values with a measuring machine TC-162 (Kojima Yosuke)
Accessories: original box (outer box/inner box*partially damaged)
Pair tube VT-4C equivalent tube large triode made in America Actual measured IP value: 49/45 mA (the best standard IP value for this amplifier is 50 mA) with white box both tubes have burns inside the tube*Sound is checked with a test amplifier, plate current values have been measured, and it has been determined that operation is good (Kojima Yosuke)
Accessories: white box
Pair tube, VT-4c equivalent tube, large triode tube, made in America, measured IP value: 49/49 mA (the best standard IP value for this amplifier is 50 mA) with white box, both tubes have getter burnt and loss ※Please note that depending on the shape of the socket, the socket may get caught in the protrusion around the pin at 1 place on the bottom and prevent it from coming out ※The sound output was checked with a test amplifier, and the plate current value was measured, and it was determined that the operation is good Yes (Kojima Yosuke)
Accessories: white box
The price was drastically reduced (2016/2/13, old price 3,000 yen) sold per bottle (checked with a tube checker) made in Japan. measured value 60/50 (rejected value)
There is a diamond mark sold per bottle, 12AX7 compatible sphere, smooth plate, measured value 46 (rejected value 32) with original box, there is a print of The Fisher (US), but I determined that it was TELEFUNKEN ECC83 based on the structure and there is darkening on the bottom ※The measured value indicates the GM value measured by the testing machine TV-7 (Kojima Yosuke)
Accessories: original box
1 bottle sold with diamond mark, 12AX7 compatible ball, smooth plate, measured value 40 (rejected value 32) with original box ※The measured values indicate gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube made in China tube measurement value 56/56 (rejected value 32) with original box*Pairs are determined based on gM values measured by the testing machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube thick tube made in America, measured value 46/44 (rejected value 30) with original box on one side, there is a getter burn on one side ※The pair is determined based on the gM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube thick tube, made in America, measured value 50/48 (rejected value 30), getter with original box is burnt ※The pair is determined based on the gM value measured by the test machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube made in China tube measurement value 56/54 (rejected value 32) There is burn on the head getter with the original box ※The pair is determined based on the gM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
High output tube used in MC225 etc. sold in Japan Hi-Fi measurement value 64 (rejected value 36) with original box has decreased and there is burn ※The measured value shows the gM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
High output tube used in the MC225 etc. made in Japan Hi-Fi measurement value 54/52 (rejected value 36) The number of getters with the original box has decreased, and there is burn ※The pair is determined based on the gM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box (outer box/inner box)
Pair tube, ambient heat beam output tube, metal brown base, made in America, measured value 64/64 (rejected value 44), base with replacement box is dull, and there is burn on some side getters*Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: replacement box
Pair tube thick tube, made in America, measured value 44/42 (rejected value 30), both tubes with original box have burnt and reduced getters, and are inexpensive because there is dirt on the tube and base ※Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
Sold in 1 bottle, high output tube used in MC225, etc. made in Japan Hi-Fi measurement value 52 (rejected value 36) with original box ※The measured value shows the gM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube made in China tube measurement value 56/54 (rejected value 32) There is burn on the head getter with the original box ※The pair is determined based on the gM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube, 211 equivalent tube, large triode tube, made in America, actual measured IP value: 49/48 mA (the best standard IP value for this amplifier is 50 mA) both tubes with the original box have brown burns on the head, and the getter on one side is slightly reduced ※The sound is checked and the plate current value is measured with the test amplifier, and it has been determined that the operation is good (Kojima Yosuke)
Accessories: original box
Pair tube, 211 equivalent tube, large triode tube, made in America, actual measured IP value: 49/48 mA (the best standard IP value for this amplifier is 50 mA) with white box*Sound is checked with a test amplifier, plate current values have been measured, and it has been determined that operation is good (Kojima Yosuke)
Accessories: white box
Only the magnesia-coated ring getter (thick) is printed on the base part of the direct heat triode tube filament part is probably a reprint. Measured value 66 (rejected value 58), strange noise inside the base with alternative box, and glass fragments are slightly stuck inside the tube*The measured value shows the gM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: replacement box (CETEON)
Sold per bottle, rectifier tube, side getter, brown base, made in America, measured value 50 (rejected value 40) with original box ※The measured values indicate gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube double triode tube, made in Japan, measured value 90/86 (rejected value 50) with replacement box ※Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: replacement box
Pair tube ambient heat beam output tube made in Russia lot: 2108/2108 measured value 80/78 (GM value measured with KT88 setting value with measuring instrument TV-7) with original box ※ pair is determined based on gM value measured with test machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube direct heat triode Russian lot: 0804/0804 measured value 60/58 (rejected value 38) with original box*Pairs are determined based on gM values measured with the testing machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube direct heat triode made in Russia lot: 0804/0804 measured value 62/60 (rejected value 38) with original box*Pairs are determined based on gM values measured by testing machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube direct heat triode Russian lot: 1004/1004 measured value 60/54 (rejected value 38) with original box*Pairs are judged based on gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box