Maintenance has been completed, including replacement of 6 film capacitors and 7 electrolytic capacitors! This is Macintosh's first transistor control amplifier. It has a crisp and comfortable sound, and it makes me hear a unique McKinn sound reminiscent of a vacuum tube. There are scuffs and line marks on the exterior. Serial 33D80 (Murakoshi Yoichi)
Maintenance information: 2026.3.25 Maintained (block capacitors (2 pieces), electrolytic capacitors (7 pieces), some film capacitors (6 pieces), transistors (10 pieces), and zener diodes (1 piece) replaced. Refine the disassembly contacts for each SW/VR class. Exterior cleaning, characteristic confirmation, waveform confirmation, sound output test) 2024.7.1 maintained (coupling capacitor replacement. Selector switch contact cleaning. Mode switch disassembly contact polishing contact grease application. Volume contact cleaning. Rubber foot mounting. Check the operation of each input/output)
Accessories: instruction manual (copy)
Main specifications: PHONO2 system equalizer curve switching (LP, RIAA) W407 x H135 x D275 mm 7.7 kg