Pair tube 45 Special/38142 compatible ball, direct heat triode, fishing rod type, filament measurement value 120/118 (rejection value 55) with original box ※ The pair was determined based on the GM value measured by the testing machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube, KT88 compatible ball, American metal base, measured value 66/64 (rejected value 44) with original box ※Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
A classic MC boost transformer. With 2 input systems, the impedance can be switched to 3.40 ohms, and a PASS line is included, so you can freely enjoy various cartridges and tone arms. You can see the exterior, dullness, and feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.2.13 Operation confirmed
Accessories: none
Main specifications: MC boost transformer input 2 systems switchable, primary impedance 40 ohm, 3 ohm switching, secondary impedance 4 kΩ boost ratio 1:10 frequency characteristics 10 Hz to 100 kHz, W97 x H65 x D155 mm, 800 g
Pair Tube 45Special/38142 Compatible Ball Fishing Rod Type Filament Measurement Value 98/92 (Rejection Value 55) Geta Burns, is a bargain because it has decreased ※The pair is GM measured with the tester TV-7 Judgment is based on the value (Yosuke Kojima)
Accessories: none
A classic MC boost transformer. With 2 input systems, an impedance of 3.40 ohms switchable, and a PASS line, you can freely enjoy a variety of cartridges and tone arms. There is an appearance, dullness, and a feeling of use (Kobayashi Hitoshi)
Maintenance information: 2023.11.18 Operation confirmed
Accessories: none
Main specifications: MC boost transformer input, 2 systems, switchable, 1st order impedance 40 Ω, 3 Ω, switching, 2nd order impedance 4 kΩ, boost ratio 1:10, frequency characteristics, 10 Hz to 100 kHz, W97 x H65 x D155 mm, 800 g
Pair tube KT88 compatible ball American metal base measurement value 68/62 (rejected value 44) *Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: none
The disposal price has been reduced! (Member discounts are not applicable) 2024/3/19 sales price 49,800 yen Maintained! Sony's highest-grade 5-channel varicon FM stereo tuner at the time. Equipped with a FET, the treble extension is excellent, and it also has the thickness unique to varicones. The retro and simple panel design is also attractive. There are dullness, small scratches, etc. appropriate for the model year. Serial 204747 (Tomoho Asaine)
Maintenance information: 2024.3.19 Maintained (power switch lever shaft repair. Adjustment of all items related to high frequency and MPX. The dial lighting and meter certification lamp were changed to LED. (Measures to prevent abnormal noise when the tuning dial is rotated, operation check)
Accessories: none
Main specifications: FM stereo tuner, reception frequency 76 MHz to 90 MHz, frequency characteristics, 20 Hz to 15 kHz, antenna terminal, 300 ohm balance, 75 ohm unbalance, W400 x H145 x D310 mm, 9.2 kg
Pair tube triode metal base, made in America, original with box ※ The pair was determined based on the EM value measured by the SENCORE TC-162 tester (Kojima Yosuke)
Accessories: original box
Pair tube, triode, metal base, made in America, with original box*Pairs are determined based on EM values measured by the SENCORE TC-162 testing machine (Kojima Yosuke)
Accessories: original box
The price has been reduced! 2024/5/16 sales price 35,000 yen This is a headphone amplifier with separate power supply with preamp function. Genuine Naspec It is compatible with most commercially available headphones, and high sound quality playback is possible even with inner-earphones or authentic stereo headphones. There are small scratches and dullness on the exterior. Serial KRHQ1200069/KRHQP120069 (Yonejima Satoshi)
Maintenance information: 2024.5.16 Operation confirmed
Accessories: power cord, connection cord
Main Specifications: Dynamic Range 110dB SNR 115dB Output Impedance 8Ω Body: W185 x D175 x 53mm 1.0 kg Power Supply Unit: H185 x D150 x H53 mm 1.7 kg
Pair tube 6SN7 compatible ball Soviet military measurement value 116/110 (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
Sold per bottle, rectifier tube, GZ37 equivalent pipe, bell tube, measured value 64 (rejected value 40) with original box ※The measured values indicate gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
Sold in 1 bottle, rectifier tube, GZ37 equivalent tube, bell tube, measured value 66 (rejected value 40) with original box ※The measured value shows the gM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: white box
Pair tube direct heat triode tube American square getter measurement value 64/60 (rejection value 38) The number of getters has decreased for both tube*Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: white box
Pair tube KT88 compatible ball American metal base measurement value 58/52 (rejection value 44) There is getter burn and loss on one side, and there is dullness on the base on the other side ※The pair is judged based on the gM value measured by the testing machine TV-7 (Kojima Yosuke)
Accessories: none
Pair tube, triode, metal base, made in America, with original box, the size of the glass tube is different on the left and right, but the internal structure is the same ※The pair is determined based on EM values measured with the SENCORE TC-162 test machine (Kojima Yosuke)
Accessories: white box
Large triode sold per unit measured IP value: 50 mA (the best standard IP value for this amplifier is 50 mA) There is a getter burn with the original box ※ I checked the sound output and measured the plate current value with the test amplifier, and it was determined that the operation was good (Kojima Yosuke)
Accessories: original box
Pair tube direct heat triode tube, white base, made in Russia, measured value 80/80 (rejected value 58) with original box ※ pair is determined based on gM values measured by testing machine TV-7 (Kojima Yosuke)
Accessories: original box
There is no problem with the operation, but it will be handed over as is. Yamaha subwoofer. You can easily enjoy powerful sound. The high-cut filter allows you to listen in the desired range, so the range of uses also expands. The exterior has a slightly raised part on the top plate, and there is a scratch on the back corner (Mizusaki Ryo)
Maintenance information: 2024.5.9 sound output confirmed
Accessories: none
Main specifications: A-YST method anti-magnetic amplifier output 250W playback frequency band 20Hz to 160Hz high-cut filter frequency 40Hz to 140Hz continuously variable W340 x H432 x D370 mm 17 kg
The price has been reduced. 2024/5/17 sales price 24,800 yen. Q ACOUSTICS 2-WAY BOOKSHELF. Once the setting is decided, you can enjoy a variety of music genres with a sense of scale that makes you doubt the size. There are dents around the upper corner on one side, and there is slight dullness throughout (Murakoshi Yoichi)
Maintenance information: 2024.5.16 sound output confirmed
Accessories: saran net, rubber feet
Main specifications: 2 way 6Ω 88dB W170 × H260 × D226 mm 4,6 kg
DENON's classic MC cartridge. The balance of localization and sound is excellent, and all music genres can be played without difficulty. This cartridge can be recommended to a variety of people, from analog beginners to experts. There are no needle bends. Serial 4623 (Fujisawa Yukishi)
Maintenance information: 2024.5.23 Operation confirmed
Accessories: needle cover
Main specifications: MC type output voltage 0.3 mV playback frequency 20 Hz to 45 kHz electrical impedance 40 ohms needle tip 16.5 microns round needle pressure 2.2 to 2.8 g dead weight 8.5 g
DENON's classic MC cartridge. The balance of localization and sound is excellent, and all music genres can be played without difficulty. I can recommend this cartridge to a variety of people, from analog beginners to experts (Murakoshi Yoichi)
Maintenance information: 2024.5.8 sound output confirmed
Accessories: needle cover, case
Main specifications: MC type output voltage 0.3 mV playback frequency 20 Hz to 45 kHz electrical impedance 40 ohms needle tip 16.5 microns round needle pressure 2.2 to 2.8 g dead weight 8.5 g
Pair tube, triode, metal base, made in America, comes with a box, is inexpensive because there are fewer gutters and there are burns ※Pairs are determined based on EM values measured with the SENCORE TC-162 test machine (Kojima Yosuke)
Accessories: white box
Pair tube, metal, brown base, made in America, measured value 66/64 (rejected value 44) with original box (some written), sticker is attached to the base part, and there is a getter burn ※ The pair was determined based on the GM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube, 6L6GC compatible ball, high reliability tube, made in America lot: 8526/8526 measured value 44/42 (rejected value 25) with replacement box ※ pair is determined based on GM values measured with test machine TV-7 (Kojima Yosuke)
Accessories: replacement box
※Since it is cheap, it will be handed over as is. This is a compact Chinese vacuum tube amplifier. It comes with a VU meter, so you can enjoy looking at it. The size is designed to be just right for desktops, etc. There is a thread on the exterior (Tamura Eiji)
Maintenance information: 2024.5.16 Operation confirmed
Accessories: none
Main specifications: Vacuum tubes used: 6SN7GT x 2, 5Z4P x 1, 6N1N x 4, W260 x H145 x D253 mm, weight 5.5 kg
Tannoy Mercury series small bookshelf. It uses network technology that follows the technology of the company's Prestige “SE” series. Silver-coated copper wire manufactured by Vandenhall is used for internal wiring to enhance sound quality. There are dust stains on the tweeter dome, small scratches such as peeling veneer on the upper front corner, and a feeling of use (Murakoshi Yoichi)
Maintenance information: 2024.5.23 sound output confirmed
Accessories: saran net
Main specifications: 2 way 8Ω 86dB W140 × H210 × D160 mm 2.2 kg
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
The pair tube is thought to be made by TESLA due to its 6CA7 compatible ball brown base double ring getter structure. Measured value 52/52 (rejected value 30) with white box ※Pairs are judged based on GM values measured with the TV-7 testing machine (Kojima Yosuke)
Accessories: white box
Pair tube direct heat triode tube American-made smoke measurement value 72/70 (rejection value 38) with white box (lid claws are missing) *Pairs are determined based on gM values measured by the testing machine TV-7 (Kojima Yosuke)
Accessories: white box
Pair tube direct heat triode tube American-made smoke measurement value 68/68 (rejection value 38) with white box (lid claws are missing) *Pairs are determined based on gM values measured by the testing machine TV-7 (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
※Since it is cheap, it will be handed over as is. Chinese vacuum tube amplifiers have arrived. The vacuum tube uses FU32, and is compact and designed to be just the right size for a desktop, etc. There is a thread on the exterior (Tamura Eiji)
Maintenance information: 2024.5.16 Operation confirmed
Accessories: none
Main specifications: 4W x 2 (4Ω) frequency response 26 to 38 kHz W296 x H150 x D210 mm weight 5.7 kg
Pair tube Russian reprint model lot: 1609/1610 measured value 56/54 (rejected value 44) with original box*Pairs are judged based on gM values measured by testing machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube direct heat triode tube made in Russia measured value 72/70 (rejected value 38) with original box (inner cushioning material has deteriorated) *Pairs are determined based on gM values measured with the testing machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube large transmission tube direct heat triode tube made in China gold base gold foot measured IP value 47mA/47ma (the best standard IP value for this amplifier is 50mA) with original box (part of the box is damaged) *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: original box
Pair tube direct heat triode tube made in Russia measured value 72/72 (rejected value 38) with original box (inner cushioning material has deteriorated) *Pairs are determined based on gM values measured with the testing machine TV-7 (Kojima Yosuke)
Accessories: original 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
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 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)
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
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 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 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
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
Shure's final high-end cartridge model. It has a smooth sound that is different from the thick, jazz-friendly series, and vocals and classical music are carefully reproduced. There is a slight feeling of use (Takasaki Atsushi)
Maintenance information: 2024.3.7 sound output confirmed
Accessories: none
Main specifications: mm type oval needle frequency band 20 Hz to 22 kHz needle pressure 0.75 to 1.5 g (appropriate 1.25 g) dead weight 7 g
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
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