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, 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 disposal price has been reduced. Member prices are not applicable. 2023/9/13 sales price 2,980,000 yen Maintained with attention to details such as drivers and wiring! The Georgian 4 is attractive for its elaborate horn configuration and beautiful furniture-like design. It is a model with a built-in crispy horn, a structure that creates a unique sound with a rich sense of scale, and the loud sound is truly an American masterpiece, but you can also feel a somewhat English-like sex appeal. *The attenuator has been maintained, but slight chipping occurs when turning due to deterioration of the original winding resistance (Oikawa Tetsuji)
Maintenance information: 2023.9.13 Maintained (828HF disassembly and maintenance: separation from magnetic circuit and diaphragm, magnetic circuit diaphragm maintenance: cleaning of the magnetic circuit, rustproof vibration system, round out, stop noise, T350 disassembly and maintenance: separation from the magnetic circuit and diaphragm, sound pressure difference adjustment: stop noise due to resonance sound generation, elimination of sound pressure drop due to rear sound leakage. Confirm that there are no modifications inside the housing. Remove rust from screws on screw-type terminals, pickle, and polish and clean the receiving side. ATT (x4) contact cleaning. A frequency characteristic measurement check (~ 42 kHz) was performed, and the original capacitor was continuously used because the results were good. (Input/output waveform and balance check, sound output check)
Accessories: none
Main specifications: 4-way 15WK, 828HF, T350, X336 (300/3500) approx. W860 x D660 x H1,350 mm approx. 90 kg
The price has been reduced! 2024/4/13 sales price 79,800 yen Maintained! Audionics of Oregon power amplifier RF regular, 117V specification In Japan, it is an American manufacturer imported by R.F. Enterprises under the name Audio of Oregon. A thick, low center of gravity sound with a punchy sound. It is an American sound suitable for jazz and rock. It can also be used as a mono power amplifier. There are exterior, dullness, small scratches, scratches on the top plate, etc. ※The plug has been changed. (YONEJIMA Satoshi)
Maintenance information: 2024.4.13 Maintained (main amplifier circuit resistor replacement. Idling current misalignment adjustment. (Distortion level check)
Accessories: No accessories
Main specifications: 170W+170W (2Ω) 120W+120W (4Ω) 70W+70W (8Ω) 225W (8Ω, when connected to BTL) AC117V 50Hz/60Hz dimensions W483 × H89 × D216 mm weight 7.7 kg
The disposal price has been reduced! (Member discounts are not applicable) 2024/1/18 sales price 49,800 yen Maintained! An American-made amplifier from the 1970s that can hardly be seen today. Circuits for self-preservation, such as security, correction, and protection, have been cut off, and I think that handsome atmosphere is well reflected in the sound. It has the same feeling of use as the model year (Daiki Goto)
Maintenance information: 2024.1.18 Maintained (LED installation (original not available) poor power stage transistor deterioration, defective transistor in the board → replacement. Bias adjustment, operation check.)
Accessories: none
Main specifications: size (actual measurement) W406 x H155 x D327 mm weight (actual measurement) 12.2 kg
The disposal price has been reduced. Member prices are not applicable. 2024/3/7 sales price 128,000 yen Maintained! A crisp, bright, and sharp sound typical of Marantz from the 1970s. Exactly, it's an American sound on the west coast. The design is also a simple design typical of US Marantz. ※The leg is out of stock. The exterior has dullness and small scratches. Serial 4180 (Yonejima Satoshi)
Maintenance information: 2024.3.7 Maintained (single CH power stage transistor replacement. Screwdriver transistor resistor replacement. Drive Tr Capacitor Replacement Contact polishing, aging test)
Accessories: No accessories
Main specifications: 125W+125W (8Ω) W445 × H170 × D265 mm 14.8 kg
Maintained! It is a model designed by US Marantz and manufactured in Japan. It develops an American sound with a dry air feel and strong push. The design is also a vintage control amplifier with a taste unique to the 70s. Externally, there are scratches and threads on the cabinet. *Some RCA terminals and inlets have been changed. Serial 7237 (Tamura Eiji)
Maintenance Information: 2024.4.13 Maintained (Mode selector stopper mechanism fixed. Electrolytic capacitors and film capacitors have been replaced. The speaker terminal (red and black type) has been processed and replaced. The end of RCA TAPE was replaced due to discoloration. Each input/output operation was checked.)
Accessories: power cable
Main specifications: Line input 5 systems, phono (MM), 2 systems, pre-out, 1 system, W391 x H146 x D222 mm, 7.3 kg
The disposal price has been reduced. Member discounts are not applicable. 2024/2/9 sales price 12,800 yen. Ground wire 4.0m American steel vintage ground cable. Sturdy single wire. Depending on the idea, it can also be used for wiring other than ground wires. If you've been looking for one, why don't you take this opportunity (Murakoshi Yoichi)
Maintenance information: 2024.2.9 continuity confirmed
Accessories: none
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 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
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
The price has been drastically reduced. 2024/1/18 sales price 49,800 yen Maintained! An American-made amplifier from the 1970s that can hardly be seen today. Circuits for self-preservation, such as security, correction, and protection, have been cut off, and I think that handsome atmosphere is well reflected in the sound. It has the same feeling of use as the model year (Daiki Goto)
Maintenance information: 2024.1.18 Maintained (check capacitors, resistors, transistors, etc. as is OK. bias check)
Accessories: none
Main specifications: size (actual measurement) W406 x H155 x D327 mm weight (actual measurement) 12.2 kg
Pair tube direct heat triode tube, made in America, JAN measured value 74/74 (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
The price has been drastically reduced. 2024/1/15 sales price 118,000 yen pair tube 45 special compatible ball straight heat triode fishing rod type filament made in America measurement value 90/86 (rejected value 55) with white box*Pairs are determined based on gM values measured by testing machine TV-7 (Kojima Yosuke)
Accessories: white box
※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, 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
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
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
※Shipping service. Special Feature = Contemporary Noise Thoughts Vol.2/Overview of American 3-Pole Output Tubes/Mos-FET Single Stage OTL Amplifier/Medium Monitor Speaker Research/New Feedback Circuit Type DC Preamplifier/38 cmW Woofer System Vol.4/Published Circuit Diagram: PIONEER CT-580/S57.5.1 Issued Photographs are samples, so the actual product may be broken or written.
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, 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
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
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, 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
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