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AR-425+モノラルプリアンプU.S.A

Manufacture:Stromberg Carlson
Price: JPY 107,273 Sold Out
23-38203-01960-00
U.S.A
Shop: Osu shop
Arrival: 2023-04-29 20:14:51
Disposal prices have been reduced. Member prices are not applicable. 2023/4/29 sales price 178,000 yen maintenance completed. Mono preamplifier+power amplifier. Details are unknown, but I think it's a 1950's product. You can enjoy the warm and rich sounds unique to vacuum tubes unique to this era. An item I want to make a sound when combined with a vintage unit. There are scratches, dullness, paint peeling, etc. appropriate to the model year (Oikawa Tetsuji) Maintenance Information: 2023.3.19 Maintained (◎ Power/Pre Common · Vacuum Tube 5Y3 Defect Replacement · Main Volume Disassembly Cleaning Repair (Gari Cannot Be Completely Removed) · Electrolytic Capacitor 200 μF Specification Difference Replacement 2 · Oil Capacitors 1000 PF Other Defective Replacements 5 · Resistors 10W and 2W Deterioration Replacement 3 · Switching Noise Reduction Measures → Spark Killer Addition · Vacuum Tube Socket and RCA Jack Grommet Repair * Other operations have been checked (measured at 14 to 17 W SP: 8 ohms with rated output AC 100 to 117 V) *Due to the structure of the switch, there is a small amount of switching noise in the selector. Accessories: none Main specifications: pre part W304 x H130 x D304 mm 2.7 kg power section vacuum tube 6L6G x 2, 5Y3GT, 6 x 4, 12 AU7 x 2 W406 x H208 x D173 mm 11.5 kg (actual measurement)
　　
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