Pair tube, subthermal beam tube, made in China, seems to have been used in the company's power amplifiers, etc. Measured value 64/64 (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
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 double triode tube, made in America, JAN measurement value 80/76 (rejected value 32) *Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: white box
Pair tube double triode tube, made in America, JAN measurement value 74/72 (rejected value 32) *Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: white box
Although the details of the stand are unknown, it is well-made, and it is a silver iron stand.
It has a simple appearance, so it can be used for a variety of purposes. The exterior has noticeable dirt on the bottom plate and support (Mizusaki Ryo)
Accessories: none
Main specifications: height: 625 mm top plate size W145 x D180 mm bottom plate size W250 x D310 mm weight 5 kg/1 bottle
Pair tube 6BQ5 high reliability tube made in Japan measured value 72/68 (rejection value 46) *Pairs are determined based on GM values measured with the TV-7 test machine (Kojima Yosuke)
Accessories: none
Pair tube 6SL7 equivalent tube military tube brown base ring getter measurement value 52 (rejected value 32) with original box ※The measured value shows the gm value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
Sold 1 bottle EF86/6267 compatible ball, military high reliability tube mesh measurement value 46 (rejected value 33), seems to be made by GEC due to the structure. Comes with a white box ※The measured values indicate GM values measured with the testing machine TV-7 (Kojima Yosuke)
Accessories: white box
Single sale rectifier tube GZ37 equivalent tube heat pipe made in England measured value 64 (rejected value 40) with original box ※The measured value shows the gM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
※There is a TELEFUNKEN ECC803S, but from the structure, it was determined that the printing was a reprint. The plate is not a box type, but only one side of the rib plate is rib plate sold per bottle ECC83/M8137 equivalent tube measurement value 36 (rejection value 32) with replacement box*The measured value represents the GM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: replacement box
Sold per bottle, rectifier tube, GZ37 equivalent tube, made in England, measured value 62 (rejected value 40) with original box ※The measured value shows the gM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
Sold per bottle, rectifier tube, GZ37 equivalent tube, made in England, measured value 62 (rejected value 40) with original box ※The measured value shows the gM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube 6BQ5 compatible ball pentode tube made in Russia, black plate, measured value 78/72 (rejection value 50) with original box ※ pair is determined based on GM values measured with test machine TV-7 (Kojima Yosuke)
Accessories: original box
Sold per bottle, rectifier tube, GZ37 equivalent tube, made in England, measured value 62 (rejected value 40) with original box ※The measured value shows the gM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
Single sale rectifier tube GZ37 equivalent tube heat pipe made in England measured value 64 (rejected value 40) with original box ※The measured value shows the gM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
The flat characteristics make the sound good and are delicate. The sound quality is relatively thick among Audio-Technica models, and I like it without losing too much weight. The cantilever is slightly to the right. There is dirt and dullness (Hiura Katsuji)
Maintenance information: 2024.2.23 sound output confirmed
Accessories: none
Main specifications: mm type output voltage 4 mV needle pressure 0.75 to 1.75 g oval needle self weight 9 g
Comes with original box! This is an 8cm full range unit from MarkAudio's ALPair series. It is a self-made unit that is attracting attention because of its technical ability, which has been produced with high accuracy, and has advanced playback capabilities, such as precise and delicate high frequencies. (FUJISAWA KOSHI)
Maintenance information: 2024.5.2 operation confirmed
Accessories: original box
Main Specifications: 8cm full range speaker 4Ω 95-30,000 Hz 85.45dB 10W
Pair tube KT88 compatible sphere Russian metal brown base measurement value 50/50 (rejection theory 44) there is writing on the base with the blue box ※The pair is determined based on the GM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: blue box
Pair tube, large beam output tube, 8147 compatible bulb, gray plate for Hi-Fi, with original box (outer box/inner box), has slightly decreased getter for both tubes ※ The pair measures and determines EM values with the measuring machine TC-162 (Kojima Yosuke)
Accessories: original box
TV rack with unknown details. The upper top plate is attached to glass, and there are 2 casters on the back (2 legs in the front), 1 shelf board is about 18 mm thick, and the lower dowel has 3 places at intervals of about 32 mm. There is a feeling of use such as scratches, dents, etc., and the back plate is cut off quite a bit (Takasaki Atsushi)
Accessories: 1 shelf
Main specifications: Outer dimensions approx. W800 × H500 (450 excluding casters and legs) × D400 (upper top plate 355) mm Upper inner dimensions approx. W750 × H130mm Lower inner dimensions approx. W750 × H255 mm Approx. 25 kg
※It has been replaced with a cloth edge. An improved version of the compact and popular blockbuster model CONTROL1. It is a speaker that can be used in a variety of ways, from pure audio to surround sound. There is a crack in the rubber part of the saran net (Oikawa Tetsuji)
Maintenance information: 2024.5.3 operation confirmed
Accessories: none
Main specifications: 2 way 2 speakers bass reflex bookshelf type 4Ω 125W W157 x H233 x D143 mm 1.8 kg
Pair tube, 6BQ5 compatible ball, made in Yugoslavia, foot, measured value 70/70 (rejected value 50) with original box ※ pair is determined based on GM values measured with test machine TV-7 (Kojima Yosuke)
Accessories: original box
※There is a TELEFUNKEN ECC803S, but from the structure, it was determined that the printing was a reprint. The plate is not a box type, only one side of the rib plate is rib plate sold per bottle ECC83/M8137 equivalent tube measurement value 38 (rejection value 32) with replacement box ※ The measured value represents the GM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: replacement box
Sold 1 bottle, 6SL7 high-reliability tube, made in America, red brown base, black plate, measured value 58 (rejected value 32) with original box ※The measured values indicate gM values measured with the testing machine TV-7 (Kojima Yosuke)
Accessories: original box
The power cable uses DIP FORMING oxygen-free copper wire with HSE treatment, which is an advanced burn-in treatment, applied to the 1.8 m conductor. The S/N is extremely high, and the strong sound in the low range is also an extremely attractive, high cost performance model. There is a film defect on part of the sheath (Kojima Yosuke)
Accessories: none
※There is a TELEFUNKEN ECC803S, but from the structure, it was determined that the printing is CV4004, the printing is a reprint. The plate is not a box type, only one side of the rib plate is rib plate sold per bottle ECC83/M8137 equivalent tube measurement value 44 (rejection value 32) with replacement box ※ The measured value represents the GM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: replacement 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 smoke made in Canada JAN measured value 86/76 (rejected value 46) with original box*Pairs are judged based on gM values measured by testing machine TV-7 (Kojima Yosuke)
Accessories: original box
※There is a TELEFUNKEN ECC803S, but from the structure, it was determined that the printing is CV4004, the printing is a reprint. The plate is not a box type, only one side of the rib plate is rib plate sold per bottle ECC83/M8137 equivalent tube measurement value 42 (rejection value 32) with replacement box ※ The measured value represents the GM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: replacement box
Sold per bottle, general purpose amplifier tube, top mark, JAN, made in America, measured value 38 (rejected value 28), with replacement box (the lid of the box is missing) *The measured values are values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: replacement box
Pair tube direct heat triode tube American double square getter measurement value 62/56 rejection value 38) It is inexpensive because there are few getters with white boxes ※Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: white box
Speaker cable, 2.9 m pair, company Y lag/banana plug specification, 8-core structure, LGC copper conductor, 4 types of different diameter wires, has a sense of energy close to advanced models, and has excellent cost performance. Colored tape is wrapped around some sheaths (Kojima Yosuke)
Accessories: none
Pair tube, ambient heat beam tube, made in America, JAN measurement value 42/40 (rejected value 25) with white box ※Pairs are determined based on GM values measured by the testing machine TV-7 (Kojima Yosuke)
Accessories: white box
The price has been reduced. 2024/3/3 sales price 15,000 yen*Currently sold. Yamaha superwoofer equipped with a 20 cm x 2 double woofer. Equipped with active servo technology and a 150W high-power amplifier, it plays bass that is small yet full of volume. There is dirt, dirt and dullness on the exterior, and some floating on the bottom. Serial Z117079QS (Tamura Eiji)
Maintenance information: 2024.3.3 sweep test is good
Accessories: No accessories
Main specifications: used unit 20 cm cone type x 2 rated output 150 W (5 Ω) playback frequency band 20 Hz to 160 Hz high cut filter 40 Hz to 140 Hz, continuously variable W235 x H602 x D463 mm 20 kg
One-piece rectifier tube, fishing rod type filament made in China, incorporates the structure of the original WE274 and is well-built. Measurement value 56 (rejected value 40) with replacement box ※ The measured value shows the GM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: replacement box
*Currently sold. BOSE's high cost performance model for a wide variety of applications. It reproduces sounds unique to BOSE that are powerful and sharp, such as jazz, rock, etc. You can feel the spread of the sound by swapping the position of the tweeter left and right and listening. Overall, there is dirt and a feeling of use. Serial 017958921760022AC, 017958921760021BC (Fujisawa Yukishi)
Maintenance information: 2024.5.6 operation confirmed
Accessories: saran net
Main specifications: 2 way 2 speakers, 8 ohms, maximum input 60 W, W380 x H240 x D170 mm, 3.9 kg
Pair tube triode for Hi-Fi made in Japan*Pairs are determined based on EM values measured with the test machine EM-604 (Yosuke Kojima)
Accessories: none
※Only 1 network coil attenuator Orient Hi-B cut core attenuation -1 to -20 dB (1 dB interval) maximum input 300 W usage frequency 200 Hz or more, line diameter 1.2 mm, W85 x H72 x D75 mm, approx. 1.1 kg/piece There is distortion in the washer part (Kojima Yosuke)
Accessories: none
Set of 2 (the internal shape seems to be the same, but the manufacturer country print is different (made in Canada/USA), so they are not treated as a pair), brown base measurement value 44/42 (rejected value 25), getta burns, and decreases) *Measured values indicate GM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: white box
A set of 2 seems to be a choke transformer, but the details are unknown. Measured DC resistance value 380/373Ω W31H95 x 44mm 0.31 kg/piece (actual measurement, not including protrusions), only conduction and resistance values have been confirmed by a tester (Kojima Yosuke)
Accessories: none
Pair tube metal brown base Russian dharma tube measured value 60/58 (rejected value 44) with white box, printing on one side often disappears ※Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube ambient heat beam tube black base lot: 9825/9825 measured value 58/58 (rejection value 44) with white box*Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: white box
Pair tube ambient heat beam tube black base lot: 9825/9825 measured value 74/72 (rejection value 44) with white box*Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: white box
Pair tube ambient heat beam tube black base lot: 9825/9825 measured value 62/60 (rejection value 44) with white box*Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: white box
Pair tube ambient heat beam tube made in Japan Hi-Fi measurement value 46/44 (rejection value 25) with original box (inner box/outer box) *Pairs are determined based on gM values measured by the testing machine TV-7 (Kojima Yosuke)
Accessories: original box (inner box/outer box)
1 bottle sold in England Xf1 6CA7 compatible ball tea base double ring getter date code: Xf1 B1I4 measured value 46 (rejected value 30) with white box (written on the box), there is getter burn, and it has decreased slightly (Kojima Yosuke)
Accessories: white box
Pair tube, ambient heat beam tube, 5881 equivalent tube, made in America, JAN brown base measurement value 42/42 (rejected value 25) with white box ※Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: white box
The price has been reduced! 2024/6/6 sales price 19,800 yen This graphic equalizer has excellent basic performance and a 2ch/31-band configuration that enables high-quality equalization with a 45mm fader. The inputs and outputs are electronically balanced, compatible with XLR, standard phone jacks (3P), and screw terminals, and a built-in power transformer. It helps with detailed sound quality correction, which is now valuable. The exterior is dull and has a feeling of use. Serial 01015239 (Tomonori Asaine)
Maintenance information: 2024.6.6 operation confirmed
Accessories: power cable original box
Main specifications: 31 bands 10Hz to 50kHz (+0.5/-3dB) 18W XLR x 2, TRS phone x 2, screw-locked input terminal W483 x H123 x D201 mm 5.1 kg