Year: | older than 1972 ?? |
Model: | GRO100 |
Model Number: | GRO100 |
Serial Number: | 449 |
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: | 100 Watts |
Preamp tubes: | 1.5 x 12AX7 ??? |
Power tubes: | 4 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 are chassis mounted. Background of Orange logo is black. The output transformer was replaced. face plate has probably been overheated(crackled paint) |