Orange Amp Field Guide: HUSTLER 120 COMBO Vintage


Pictures of a spotless 125, kindly donated by Herve Vaury.
Serial Number: 1261
Inspection tag:16/1/78
Speaker code: MK19 (19 Dec 1977)

Year: <1976
Model:"HUSTLER" 125
Model Number:125
Config:2 x 12 COMBO with front controls
Control Panel Layout:CH1: Inputs 1 and 2/vol/treble/bass, Ch2: Inputs 1 and 2/vol/treble/middle/bass, Reverb Depth, Tremelo Speed, Tremelo depth, Master volume, Pilot Light
Rear Panel Layout:Voltage selector, power switch, standby switch, primary fuse, high tension fuse, 2 speaker outputs, slave output, footswitch input, reverb return, reverb drive
Speakers/Load: Ohms
Speaker model:2 x 12 Celestion G12/75W (15 Ohms)
Effects:Reverb and Tremolo on second channel
Output:120 Watts
Preamp tubes:5 x ECC83 (+ extra ECC82 for PI)
Power tubes:4 x EL34
Bias:Fixed bias
Rectifier:solid state 6 x BA127 diodes
Phase Inverter:Long Tail PI (ECC82)
Circuit:MKIII 125W Schematic, drawn by Patrick Maillot (France)
Comments:Looks very strongly like an Orange copy of a Fender Twin.
Comments from George Hadjopoulos: "The reverb driver stage proably has an ECC82 instead of an ECC83. If you use an ECC83 in that position the reverb circuit self-oscillates. So that would make two ECC82 (for phase inverter and reverb driver) and four ECC83 tubes. I also have information that some of these models were issued with G12/50 orange-painted Rola-Celestions with an aluminium dustcap and magnet vent hole. Their magnet size was same as the regular G12/75."