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
1 bottle of KT88 compatible ball, made in America, metal base, LUXMAN print measurement value 54 (rejection value 44), base with replacement box, has dullness ※ measured values indicate GM values measured with test machine TV-7 (Kojima Yosuke)
Accessories: replacement box
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
Speaker Cable 1.9 m Pair Untreated End - Banana Plug Ultra Pure 7NCu/6NCU Hybrid Multi Conductor Cable Offers unrivaled cost performance. The materials and configurations of insulators, coatings, etc. are all the same as 7N and 8N cables, and the density of the contents stands out (Kojima Yosuke)
Accessories: none
Pair tube, EL84 compatible ball, pentode tube, made in Japan, measured value 84/80 (rejection value 50), both tubes have pin bends ※ pairs are determined based on GM values measured with test machine TV-7 (Kojima Yosuke)
Accessories: none
※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
Pair tube EL34 compatible sphere made in Japan black plate measured value 54/54 (rejected value 30) with white box, the printing design is different on the left and right, but the internal structure is the same ※Pairs are judged based on gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: white box
Pair tube EL34 compatible ball, black plate, made in Japan, measured value 54/54 (rejected value 30) with original box ※Pairs are determined based on gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
Sold 1 bottle EL34 compatible ball, made in Japan, black plate, measured value 52 (rejected value 30) with original box, there is a slight getter burn ※ pairs are judged based on gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube, EL34 compatible ball, Russian tube, measured value 44/42 (rejected value 30) with original box ※ pair is determined based on GM values measured with test machine TV-7 (Kojima Yosuke)
Accessories: original box
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
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
Pair tube, deflection output tube, made in America, with original box ※Pairs are determined based on EM values measured with the TC-162 tester (Kojima Yosuke)
Accessories: original box
1 bottle of side-heat beam tube, made in France, smoke measurement value 42 (rejection value 25), replacement box included, printing is missing ※ the measured value shows the GM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: replacement box
Pair tube ambient heat beam tube made in America, measured value 42/40 (rejection value 25) with original box (the claws on one side of the box are missing) *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 measurement value 44/42 (rejection 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 ambient heat beam tube measurement value 40/38 (rejection 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 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)
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
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
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 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 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
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
Only 1 speaker cable uses a new conductor by hybridizing 4 types of materials, including the innovative HiFC and PCUHD wire materials, with an exquisite golden ratio, centering on an untreated ultra-high purity 6NCU at the end. It's a clear high range, a plump middle range, and a heavy low range. You can see the exterior, dullness, and feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.5.5 continuity confirmed
Accessories: none
The 1.19m pair end of the speaker cable uses a new conductor that is a hybrid of 4 types of materials, including the innovative HiFC and PCUHD wire materials, with an exquisite golden ratio, centering on an untreated ultra-high purity 6NCu. It's a clear high range, a plump middle range, and a heavy low range. You can see the exterior, dullness, and feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.5.5 continuity confirmed
Accessories: none
Only 1 speaker cable uses a new conductor that is a hybrid of 4 types of materials, including the innovative HiFC and PCUHD wire materials, with an exquisite golden ratio, centering on an untreated ultra-high purity 6NCU at the end of the 1.35 m end. It's a clear high range, a plump middle range, and a heavy low range. You can see the exterior, dullness, and feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.5.5 continuity confirmed
Accessories: none
Phono cable 1.2m 5pin-RCA high-purity 6NCU hybrid core wire 7-layer double 2-core shield structure, high quality cable that strongly shuts out induced noise. Comparing various cables as a standard for phono cables is also fun. The degree is generally good (Murakoshi Yoichi)
Maintenance information: 2024.5.16 continuity confirmed
Accessories: original 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
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
Pair tube made in the USA side getter measurement value 62/58 (critical value 30) with JAN original box ※ The pair is determined based on GM value measured by the tester TV-7 (Yosuke Kojima)
Accessories: original box
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, 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
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
Equivalent to TRIO N-39. Replacement needle for N-39 It is unopened and operation has not been checked (Hiura Katsutsugu)
Maintenance information: operation unconfirmed
Accessories: original box
Equivalent to the Hitachi DS-5T. Replacement needles for HRD-100 and HRD-101 It is unopened and operation has not been checked (Hiura Katsutsugu)
Maintenance information: operation unconfirmed
Accessories: none
The A2500 is a tube type power amplifier kit that has been replaced with speaker terminals that are easy to use even for beginners. 6AQ8 for the first stage and 12AU7 for the phase reversal stage both use triodes. Since triodes are used across all stages, the sound is taut and bright, with excellent nude characteristics. The exterior has dullness over time, rust, and small scratches. Serial 560561 (Miura Kimiya)
Maintenance information: 2018.4.28 Maintained (printed circuit board resistor replaced. (Adjustment characteristics check OK) 2014.11.21 maintenance completed (input VR, vacuum tube socket, coupling capacitor, SP terminal, BIAS DC BAL, semi-VR, each deterioration exchange, adjustment, characteristic check OK)
Accessories: instruction manual
Main specifications: 6 RA8 push-pull 6 RA8 x 4/12 AU7 x 2/6AQ8 10W+10W W410 x H145 (with hood) x D190 mm 9.6 kg
The A3500 vacuum tube power amplifier has been refreshed by thorough maintenance down to the smallest details, such as volume disassembly and polishing. The warm, fresh tone, filled with the appeal of a vacuum tube type, is still appealing enough today. You can enjoy music with a rich, thick tone that contrasts with the clicking tones of recent vacuum tube amplifiers. As for the exterior, paint deterioration and peeling can be seen on the transformer on one side, and there is a feeling of use such as dullness, small scratches, etc., and there is a dent in the hood. ※3-pole tube connection specification. 20W+20W (actual measurement) is output as specified by the manufacturer (Takasaki Atsushi)
Maintenance information: 2023.2.3 maintained (main tube (6CA7) replacement vacuum tube socket, block capacitor, electrolytic capacitor, oil capacitor, SP and RCA terminals, complete disassembly of semi-fixed VR replacement power input gain volume, contact polishing, anti-oxidation/sulfation grease coating load test (8Ω load 1kHz 20W+20W) input/output waveform confirmation sound output check performed)
Accessories: copy of the manual
Main specifications: 20W+20W (8Ω) vacuum tube 6CA7×4/6AQ8×3 W465×H168×D206mm 16kg
Comes with side wood. A masterpiece model of a CD player that reproduces the soft, powerful sound of analog. The thick mid-range and rich analog-like sound quality is a unique appeal. It is a high degree of perfection that can be said to be one of the goals in terms of sound quality among CD players of all time. The exterior is fine with no noticeable scratches over time, and it is only dull (Kobayashi Hitoshi)
Maintenance information: 2017.2.17 Maintained (spindle motor lubrication, height adjustment, all capacitors replaced. Replace the memory backup battery with a super capacity. Tact switch contact cleaning for operation. (Inspection of each operation)
Accessories: instruction manual, power cord
Main specifications: CDM3 mechanism, multi-bit PHILIPS TDA1541D/A converter, 3 analog output systems (XLR x 1, RCA x 2 (fixed/variable)), 1 digital output (AES), 1 clock input/output system (BNC), W320 x H131 x D355 mm, 6 kg
Comes with side wood. A masterpiece model of a CD player that reproduces the soft, powerful sound of analog. The thick mid-range and rich analog-like sound quality is a unique appeal. It is a high degree of perfection that can be said to be one of the goals in terms of sound quality among CD players of all time. The exterior is good with no noticeable scratches over time, and it is only dull (Yasuhito Koshihama)
Maintenance information: 2023.12.8 maintained (45 capacitors replaced, CD mechanism, turntable motor high rotation torque? →Dismantling. Spindle cleaning, other laser pickups, poor height → power supply in the main ard, analog part coupling C, bypass C, etc., capacity variations → replacement, front button internal contact all polishing ~ aging test 10H ~
Accessories: power cable, side wood x 2 pieces
Main specifications: CDM3 mechanism, multi-bit PHILIPS TDA1541D/A converter, 3 analog output systems (XLR x 1, RCA x 2 (fixed/variable)), 1 digital output (AES), 1 clock input/output system (BNC), W320 x H131 x D355 mm, 6 kg
The price has been drastically reduced! 2024/4/27 sales price 298,000 yen Interior and exterior maintenance completed! English studio monitor with TANNOY HPD385 installed. It's deep and you can feel that the scale is wide, and the size is clean, so the room's layout will expand. The exterior has been beautifully finished due to maintenance (Tomoho Asaine)
Maintenance information: 2024.4.27 Maintained (exterior cleaning/repair
Saran net replacement unit maintenance (magnetic circuit rust removal/gap cleaning/center adjustment, fastener polishing) unit detachment network maintenance frequency characteristic check ATT cleaning high range capacitor replacement (3.3 uf, 4.8 uf) 4 pin terminal contact cleaning)
Accessories: none
Main specifications: size W510xH769xD380mm weight 32.2 kg (actual measurement)
DP-1300M heavy headshell counterweight, set of 2 types, large and small A must-have item for those who use heavyweight cartridges such as SPU and FR. It can also be attached to the DP-500M. Recommended for those who use a variety of cartridges. There is slight dullness on the exterior (Murakoshi Yoichi)
Accessories: none
Main specifications: Compatible cartridges for their own weight/for 20 to 28 g (small) /for 26 to 37 g (large)
Comes with original box! DP-1300M heavy headshell counterweights, set of 2 large and small A must-have item for those using heavyweight cartridges such as SPU and FR. It can also be attached to the DP-500M. It is recommended for those who use a variety of cartridges. There are some scratches on the exterior (Fujisawa Yukishi)
Accessories: original box
Main specifications: Compatible cartridge weight/for 20 to 28 g (small) /26 to 37 g (large)