MARSHALL JCM 900 50W HI-GAIN MASTER VOLUME HEAD (MODEL 2500, MKIII)
- 50W (switchable to 25W), guitar head-unit, five-tube chassis, preamp: 3 X ECC83/12AX7, power: 2 X 5881, solid-state rectifier, pentode/triode output stage, two channels, front gold control panel, single input, eight knobs (p, b, m, t, Ch....