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- description
- The pair tube seems to be made in Russia due to its direct heat triode structure. Measured value 66/64 (rejected value 38) with tea box ※The pair is determined based on the gM value measured by the testing machine TV-7 (Kojima Yosuke) Accessories: tea box
Manufacture:Western Electric
Price: JPY 227,273
- description
- Selling 1 bottle eggplant tube engraved direct heat triode ring getter tube code: 35 40 measured value 44 (rejected value 34) with white box ※ measured values indicate gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: white box
- description
- Direct thermal triode sold per bottle, made in America, measured value 56 (rejected value 38), there is a getter burn with a replacement box ※The measured value shows the gM value measured with the test machine TV-7 (Kojima Yosuke) Accessories: replacement box
- description
- Pair tube double triode power tube, made in America, JAN measured value 60/56 (rejected value 40) with original box ※Pairs are determined based on gM values measured by testing machine TV-7 (Kojima Yosuke) Accessories: original box
Manufacture:Golden Dragon
Price: JPY 10,000(pair)
- description
- Pair tube, large transmission tube, direct heat triode tube, made in China, measured IP value 44/42 mA (the best standard IP value for this amplifier is 50 mA) with original box*Sound is checked with a test amplifier and plate current values are measured (Kojima Yosuke) Accessories: original box
Manufacture:Western Electric
Price: JPY 22,727(pair)
- description
- Pair tube heat dissipation double triode tube made in America lot: 8113/8113 measured value 40/40 (rejected value 40) with original box Gm value is low, so it's cheap ※Pairs are judged based on Gm values measured with the TV-7 testing machine (Kojima Yosuke) Accessories: original box
- description
- Pair tube double triode Russian reprint model measured value 120/120 (rejected value 50) with original box*Pairs are judged based on gM values measured by testing machine TV-7 (Kojima Yosuke) Accessories: original box
- description
- Sold in 1 bottle, double triode, Russian reprint model, measured value 120 (rejected value 50) with original box ※The measured values indicate gM values measured with the testing machine TV-7 (Kojima Yosuke) Accessories: original box
- description
- Pair tube double triode Russian reprint model measured value 120/120 (rejected value 50) with original box*Pairs are judged based on gM values measured by testing machine TV-7 (Kojima Yosuke) Accessories: original box
Manufacture:Western Electric
Price: JPY 334,545(pair)
- description
- Pair tube direct heat triode magnesia coating square getter code: 126/152, measured value 78/76 (rejection value 50), the tube head with a replacement box is burnt, and it is inexpensive because there are few getters ※Pairs are judged based on gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: replacement box (made by WE, damaged a lot)
Manufacture:Western Electric
Price: JPY 90,909(pair)
- description
- Pair tube direct heat triode ring getter code: 6813/6826 measured value 46/44 (rejected value 34) with original box*Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: original box
- description
- It is a vacuum tube amplifier created by making full use of parts and circuits that have been thoroughly examined in order to fully bring out the performance and tone of the latest direct thermal triode TA-300B. By expressing the music as it is, it evokes the original vivid breath of music from the listening board, and it is a special car where you can enjoy the real thrill of audio to your heart's content. There are no noticeable scratches on the exterior. Serial M10300088 (Fujisawa Yukishi) Maintenance information: 2025.7.25 Operation confirmed Accessories: instruction manual, power cord, bonnet Main specifications: rated output 8W+8W frequency characteristics 20Hz-20kHz (+0.3, -1.5dB) 10Hz-30kHz (+0.3, -3.0dB) vacuum tubes using 5AR4 (SOVTEK) x 2 6SN7GTB (TUNG-SOL) x 4 TA-300B (Takatsuki Electric Industries) x 2 dimensions W460 x H237 x D340 weight 29.0 kg
- description
- Pair tube direct heat triode tube made in China white base metal foot measurement value 64/56 (rejected value 38) with white box*Pairs are determined based on gM values measured by the testing machine TV-7 (Kojima Yosuke) Accessories: white box
- description
- Pair tube direct heat triode tube made in China white base metal foot measurement value 64/64 (rejected value 38) with white box*Pairs are determined based on gM values measured by the testing machine TV-7 (Kojima Yosuke) Accessories: white box
- description
- Sold as 1 bottle, double triode tube, American black plate, square getter, measured value 96 (rejected value 50) with white box ※The measured values indicate gM values measured with the testing machine TV-7 (Kojima Yosuke) Accessories: white box
- description
- Single sale double triode tube, made in Japan, measured value 108 (rejected value 50) with replacement box ※The measured values indicate gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: replacement box
- description
- Pair tube double triode tube VT-231 equivalent tube made in Russia measurement value 106/104 (rejection value 50) There is printing distortion and disappearance of the one-sided tube with the original box ※Pairs are judged based on gM values measured with the testing machine TV-7 (Kojima Yosuke) Accessories: original box
Manufacture:ELECTRO HARMONIX
Price: JPY 4,091(pair)
- description
- Pair tube double triode tube made in Russia, measured value 120/120 (rejected value 50) with original box ※Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: original box
Manufacture:ELECTRO HARMONIX
Price: JPY 4,091(pair)
- description
- Pair tube double triode tube made in Russia measured value 116/114 (rejected value 50) with original box*Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: original box
- description
- Pair tube double triode tube American-made square getter measured value 118/108 (rejected value 50) *Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: none
- description
- Pair tube double triode tube American smoke measurement value 56/54 (rejected value 32) with white box*Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: white box
- description
- Single sale double triode tube, made in Japan, measured value 96 (rejected value 50) with replacement box ※The measured values indicate gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: replacement box
- description
- Pair tube, double triode tube, VT-229 equivalent tube, JAN, made in America, measured value 50/50 (rejected value 32), there is printing friction ※Pairs are determined based on gM values measured by the testing machine TV-7 (Kojima Yosuke) Accessories: none
- description
- Sold as 1 bottle, double triode tube, made in America, measured value 106 (rejected value 50) with white box ※The measured values indicate gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: white box
Manufacture:SYLVANIA ECG
Price: JPY 2,727(only one piece)
- description
- Sold in 1 bottle, double triode tube, VT-231 equivalent tube, made in America, measured value 90 (rejected value 50) with white box ※The measured values indicate gM values measured with the testing machine TV-7 (Kojima Yosuke) Accessories: white box
Price: JPY 1,636
雑誌・書籍1000円以上で送料無料
- description
- ※Shipping service. Special Feature = Audition Test for 75 Separate and Integrated Models/World's First! Sound quality comparison of 11 output transformer models, and comparison of 28 successive direct thermal triode models. Published 1995/3/31. Since the photograph is a sample, the actual item may be broken or have markings etc.
Manufacture:International
Price: JPY 3,636(pair)
- description
- Pair tube double triode tube made in the Soviet Union measured value 104/100 (rejected value 50) with original box*Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: original box
- description
- Pair tube double triode tube American D getter measurement value 74/72 (rejected value 50) with white box*Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: white box
- description
- Pair tube double triode tube, made in America, D getter measurement value 84/82 (rejection value 50), there is burn on one side of the tube with white box, and there is getter burn ※Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke) Accessories: white box
- description
- Pair tube double triode tube, made in America, green printing, measured value 104/102 (rejected value 50) with original box ※Pairs are determined based on gM values measured by the testing machine TV-7 (Kojima Yosuke) Accessories: original box (the nails on the box are missing)
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Hi-Fi Do Record Shops Softs, Audio parts and Tubes can ship overseas.Ordinary,we use EMS but for large order,we use SAL or Surface.For Asia,it cost 1,200JPY/1LP,900JPY/1CD.Please check at the shipping cost table for more detail.
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