Orange Amp Field Guide: GRO50 HEAD

GRO50

Pictures of GRO50 no151
Kindly donated by Ed Gilmour




Year: before '73
Model:GRO50
Model Number:GRO50
Serial Number:151
Config:Head
Control Panel:Plexi panel
Control Panel Layout:Input - F.A.C. - Bass - Treble - H.F.Boost - Gain - Reverb Send - Reverb Return - Pilot Light - Power
Rear Panel Layout:Mains chord - Voltage selector - 2 fuse holders - Slave output - Impedance selector - 2 speakers outs
Cabinet:size?
Weight:
Speakers/Load:3.75/7.5/15 Ohm or 100V line
Speaker model:N/A
Effects:N/A
Output:50 Watts
Preamp tubes:1.5 x 12AX7 ???
Power tubes:2 x EL34
Bias:Fixed bias
Rectifier:solid state
Phase Inverter:Cathodyne type: 1/2 x 12ax7
Circuit:'72 type schematic???
Chassis layout:preamp tubes are chassis mounted!
Comments:This amp has older impedance values.
Preamp tubes arechassis mounted.