WE300 specification! ATM-300 is the most popular among air tights. It is equipped with a Tamura output transformer and has a luxurious construction using a copper plate on the bottom. The clear sound of the violin and the power to make a large speaker sound in a dignified manner are impressive. The gain will also increase enough, so I think it's okay to bring out the full appeal of 300B by connecting directly to the CD. There are no major noticeable scratches on the exterior (Tetsuji Oikawa)
Maintenance information: 2022.11.23 operation confirmed
Accessories: power cable
Main specifications: Output 8W+8W (8Ω) vacuum tube 300B x 2 (Western Electric, serial 224466/224520), 12BH x 2, 12AU7 x 2, 5U4G x 1 damping factor, 3 levels adjustable input RCA1 system, W430 x H275 x D245 mm, weight 24 kg
The interior has been completely overhauled! This is an 811A push-pull tube power amplifier. You can enjoy an overhanging vacuum tube sound with luxurious mono specifications where the woofer is properly braked. The thick, cored sound in the low range makes you feel the momentum and strength unrivaled for a vacuum tube. The entire exterior has scratches and dullness over time (Sasaki Shota)
Maintenance information: 2024.4.26 Maintained (vacuum tube 5R4GY strain and deterioration replacement. 1W resistor distortion and deterioration replacement. 25W resistance deterioration and pair replacement. Vacuum tube 6W6 deterioration replacement/vacuum tube 6SN7 defective replacement. Block capacitors 40 μF x 2 made in Japan → replaced with CE ones. 1 x 2 Vacuum Tube Socket and RCA Jack Caulking Repair Rated output: 85 to 120 W with AC 100 to 117 V, measured at SP: 8 ohms)
Accessories: none
Main specifications: vacuum tube 811A x 4, 5R4GY x 8, 6W6GTB x 4, 6SN7GTB x 2, 12AX7 x 2, 165W+165W W482 x H272 x D310 mm
Disposal prices have been reduced. Member discounts do not apply. 2023/2/17 sales price 498,000 yen maintenance completed. A tube mono power amplifier that makes you feel the “voice of theater” with the intense sound of EL34 Parapush. It was active in movie theaters from 1957 to around 1970, and it showed plenty of power even at large venues. The peerless trance's mid range is comfortable, and you can experience the exhilarating sound that pops forward and forward. There is rust on dirt, transformers, etc. all over. There is a slight groan in the trance. Mitigation measures have been taken, but groaning remains appropriate for the model year. Serial 1990 2004 (Itsuro Mizushima)
Maintenance information: 2022.8.18 maintenance completed (SN.2004 side vacuum tube 5U4GB replacement, operation including aging has been checked with AC100 to 117 V, etc., input cable ASSY remanufactured x 1 pair, HUM ADJ readjusted)
2022.2.11 maintenance (resistor replacement, running test) 2020.11.22 maintenance (*transformer groan reduction measures → rubber pads added between transformer and chassis (complete repair not possible), vacuum tube 6CG7 sorting product replacement gain countermeasures → resistor 1W addition x 2)
2020.2.1 Maintained (vacuum tube 6CG7 replacement 1 x 2, vacuum tube EL34 replacement 1 x 2, oil capacitor 0.5 μF replacement x 2, block capacitor 40 μF x 2 replacement x 2, electrolytic capacitor 50 μF other replacement x 2, power switch replacement 1 x 2, spark killer addition 1 x 2, input cord ASSY manufacturing 1 x 2, resistor 1W replacement x 2, resistor 1/2W additional socket x 2, vacuum tube and RCA Jack caulk repair. ◎ 2004 side oil capacitor 0.22 μF replacement, output transformer rewound repair. ◎ 1990 side oil capacitors, 2 0.22 μF replacements, 1 W resistors, etc., 2 replacements. Other operations have been checked (measured at 66 to 94 W SP: 8 ohms with rated output AC 100 to 117 V)
Accessories: none
Main specifications: maximum output 80W W482 x H221 x D189 mm 14.9 kg
* There is a buzzing noise when the power is turned on, but this is a specification. This is an 811A push-pull tube power amplifier. You can enjoy the sound of a vacuum tube with a luxurious mono specification and a good overhang where the woofer is firmly braked. The thick, cored sound in the low frequencies makes you feel the momentum and strength that is unparalleled for a vacuum tube. The exterior is dull and corroded throughout. Serial 3172/3173 (Satoshi Yoneshima)
Maintenance Information: 2020.1.9 Maintained (VT6W6 pin part replaced due to unstable solder. R1/2W replacement Thermistors have been added to both channels because Thermal Breaker (Thermal Breaker) is unstable. One 811A on one side is thin, but there is no problem with operation) 2017.12.4 maintained (common, 1 VT811A replacement x 2. Block.c40μF x 2 replacement 1 x 2 Block.c120μF replacement 2 pieces x 2 R1/2W addition 1 piece x 2 · VT socket and RCA jack caulking repair ◎ 3173 side · main volume deterioration replacement
Other operations have been checked (SP8Ω))
Accessories: There are no accessories
Main specifications: Peerless transformer mounted vacuum tube 811A x 4, 5R4GY x 8, 6W6GTB x 4, 6SN7 GTB x 2, 12AX7 x 2 165W+165W W482 x H272 x D310 mm 40kg