- Wuhan, Hubei province, China
- US $23.75
- Jun 9th
6Z4 Tube Preamplifier Board Reference to Marantz 7 Circuit Specification: PCB size: 170mm * 85mm Voltage: AC 6.5V (15W) or AC 150V-0-AC 150V (10W) Using 7 color flashing LED lights ,having a better performance in the evening! PCB using 1.6mm thick double-sided sheet , 2.0 oz copper thickness, ensure that the size of the current has a good through performance.