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C20（前期）U.S.A

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Manufacture:McIntosh
Price: JPY 452,727
25-48298-24865-00
U.S.A 1959 made
Shop: Osu shop
Arrival: 2025-12-28 20:27:28
The initial model C20 underwent maintenance due to poor contact with the main volume shaft, and a major overhaul in 2023. With the thick, soft touch unique to Old Mackin, it vividly depicts music in the mid to high range, which has a different luster from C22. There are small scratches, dullness, etc. appropriate for the model year*For about 30 seconds after turning on the power supply, cracks appear due to the effects of charging and discharging the capacitor (Oikawa Tetsuji) Maintenance information: 2025.12.10 Maintained (Main volume shaft contact defect repair (*All models will crack for about 30 seconds after power is turned on due to the effects of capacitor charging and discharging.) ・Lamp defect replacement/input ground strengthening treatment) 2025.7.3 maintained (vacuum tube 12 AU7 noise exchange/resistance 1/2W noise exchange, 6 vacuum tube socket and RCA jack re-caulking repairs* operation checked with AC 100 to 117 V) 2023.3.4 maintained (starting current inspection and PSE inspection, main volume gap replacement, 40/20/20 μF, etc., 2 defective and deterioration replacements/1000 μF 2 electrolytic capacitors Replacement for the original circuit; replacement with 0.1 μF or other oil capacitors and ceramic capacitors; 33; Electrolytic capacitors replaced with 50 μF or other Sprague ones; vacuum tube 12AU7 noise replacement; lamp deterioration replacement; RCA jack and vacuum tube socket caulking repair*Operation has been checked with AC 100 to 117 V Accessories: copy of the manual Main specifications: Vacuum tube used 6x4, 12AX7, 12AU7 dimensions W390 x H146 x D315 mm weight 8.3 kg
　　
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