Marshall JCM600 Schematics
The JCM600 amps were introduced in 1997, superceding the JTM60 range, and discontinued in 2000. Circuit wise the JCM600 amps were identical to the JTM60 amps. The “vintage” exterior styling of the JTM60 was changed to more modern standards though.
JCM600, 60W head
These 60W heads were fitted with 4x ECC83 (Shuguang) and 2x EL34 (Svetlana) tubes. The JCM C410A & JCM C410B 4×10″ cabinets are very well suited to be used with this amp.
Owners manual for the JCM600 amps.
Schematic of the reverb & channel switching, JCM6-60-02 issue 2, (Marshall, 1997).
Schematic of the pre amp & power amp, JCM6-61-02 issue 2, (Marshall, 1997).
Schematic of the PSU and rear PCB, JCM6-62-02 issue 2, (Marshall, 1997).
JCM601, 60W 1×12″ combo
These 60W combos were fitted with 4x ECC83 (Shuguang) and 2x EL34 (Svetlana) tubes. These combos were fitted with a Marshall labelled 12″ Celestion G12 Heritage T4612 16Ω speaker. The JCM C12 extension cabinet is well suited to be combined with this combo.
Owners manual for the JCM600 amps.
Schematic of the reverb & channel switching, JCM6-60-02 issue 2, (Marshall, 1997).
Schematic of the pre amp & power amp, JCM6-61-02 issue 2, (Marshall, 1997).
Schematic of the PSU and rear PCB, JCM6-62-02 issue 2, (Marshall, 1997).
JCM602, 60W 2×12″ combo
These 60W combos were fitted with 4x ECC83 (Shuguang) and 2x EL34 (Svetlana) tubes. These combos were fitted with two Marshall labelled 12″ Celestion G12 Heritage T4661 8Ω (S311) speakers. The JCM C212 extension cabinet is well suited to be combined with this combo.
Owners manual for the JCM600 amps.
Schematic of the reverb & channel switching, JCM6-60-02 issue 2, (Marshall, 1997).
Schematic of the pre amp & power amp, JCM6-61-02 issue 2, (Marshall, 1997).
Schematic of the PSU and rear PCB, JCM6-62-02 issue 2, (Marshall, 1997).
JCM C12, 70W 1×12″ 16Ω extension cabinet
These 1×12″ semi open back extension cabinets were fitted with a Marshall labelled 12″ Celestion G12 Heritage T4612 16Ω speaker.
Owners manual for the JCM600 amps.
JCM C212, 140W 2×12″ 16Ω extension cabinet
These 2×12″ semi open back extension cabinets were fitted with two Marshall labelled 12″ Celestion G12 Heritage T4661 8Ω (S311) speakers.
Owners manual for the JCM600 amps.
JCM C410A, 120W 4×10″ 16Ω cabinet, angled front.
These 4×10″ closed back cabinets were fitted with four Marshall labeled Celestion 10″ G10C-30 “Gold Back Series” T4703 4Ω speakers.
Owners manual for the JCM600 amps.
JCM C410B, 120W 4×10″ 16Ω cabinet, straight front.
These 4×10″ closed back cabinets were fitted with four Marshall labeled Celestion 10″ G10C-30 “Gold Back Series” T4703 4Ω speakers.
Owners manual for the JCM600 amps.
