Maintenance has been completed, including replacement of 18 capacitors and 20 resistors! An attractive A-class power amplifier with a powerful, thick sound. The sense of energy that makes even large speakers sound is a product close to the mid to low range, which is in contrast to modern models. It's unique to the heyday of audio with thickness, scale, and room. There are scratches, dullness, abrasions, etc. appropriate to the model year (Oikawa Tetsuji)
Maintenance information: 2025.6.5 maintained (volume, switch disassembly and cleaning. Relay contact disassembly and cleaning. Electrolytic capacitor, fuse resistor, meter lamp, power cord replacement. Replace the damaged part of the power switch. Transistors, magnetization removal. Soldering fixes for each board. Cleaning internal housings, panels, knobs, boards, and terminals. Bias and offset readjustment. aging test. (Capacitors, etc. are replaced in the direction of maintaining the original sound quality as much as possible, and only those that have deteriorated are replaced)
Accessories: copy of instruction manual
Main Specifications: Real Bias Circuit Class A Operation 250W+250W (8Ω) 300W+300W (6Ω) Dimensions W488 x H199 x D480 mm Weight 30 kg