Marshall Valvestate Mk1 Schematics
The first Valvestates were introduced in 1991 and most of these models were discontinued in 1996 to be superceded that same year by the Valvestate Mk2 amps. These amps are cheaper alternatives to the expensive all tube amps. The Valvestates are transistorised amps with some (8040, 8080, 8100, 8200, 8240 & 8280) containing one ECC83/12AX7 tube in the pre amp.
Valvestate Mk1, all models
8001 Valvestate 10, 10W micro stack
This amp was discontinued in 1992. It was a head with two 1×8″ cabinets together forming a micro stack.
Schematic of the 8001 & 8010, Issue 5 (Marshall, 1993).
8004 Valvestate, 2x40W 19″ rack power amp
Schematic of the 8004, Issue 5 (Marshall, 1992).
User manual for the 8004 & 8008.
8008 Valvestate, 2x80W 19″ rack power amp
Schematic of the 8008, Issue 7 (Marshall, 1998).
User manual for the 8004 & 8008.
Photograph of an 8008 amp.
8010 Valvestate 10, 10W 1×8″ combo
Schematic of the 8010, Issue 5 (Marshall, 1993).
Photograph of a 8010 combo. Thanx to Steven Linley.
8020 Valvestate 20, 20W 1×10″ combo
Schematic of the 8020, Issue 2 (Marshall, 1991).
8040 Valvestate 40, 40W 1×12″ combo
This amp was fitted with a 12″ Celestion G12-40 T4306 4Ω speaker.
Schematic of the 8040, PC0669 Issue 6 (Marshall, 1992).
Schematic of the 8040, PC0669 Issue 8 (Marshall, 1995).
Photograph of an 8040 combo.
8080 Valvestate V80, 80W 1×12″ combo
This amp was fitted with a 12″ Celestion G12T T4354 8Ω speaker.
Schematic of the pre amp, Issue 1 (Marshall, 1991).
Schematic of the pre amp, Issue 5 (Marshall, 1994).
Schematic of the power amp, Issue 1 (Marshall, 1991).
Schematic of the power amp, Issue 9 (Marshall, 1994).
Photograph of an 8080 combo.
8100 Valvestate, 100W head
The 8412 cabinet was meant to be used with this head.
Schematic of the pre amp, Issue 1 (Marshall, 1991).
Schematic of the pre amp, Issue 5 (Marshall, 1994).
Schematic of the power amp, Issue 1 (Marshall, 1991).
Schematic of the power amp, Issue 9 (Marshall, 1994).
Photograph of an 8100 head.
8200 Valvestate, 2x 100W Stereo Chorus head with reverb
The Stereo Chorus models were introduced in 1993 and discontinued in 1996. The 8222 cabinet was meant to be used with this head.
8240 Valvestate, 2x 40W 2×12″ Stereo Chorus combo with reverb
The Stereo Chorus models were introduced in 1993 and discontinued in 1996.
Schematic of the 8240.
Schematic of the pre amp, 8240-61-06 Issue 4, 1of3 (Marshall, 1992).
Photograph of an 8240 combo.
8280 Valvestate, 2x 80W 2×12″ Stereo Chorus combo with reverb
The Stereo Chorus models were introduced in 1993 and discontinued in 1996. This amp was fitted with two 12″ Celestion G12T T4354 8Ω speakers.
Schematic of the chorus, 8280-60-02 Issue 4, (Marshall, 1993).
Schematic of the reverb & PSU, 8280-61-02 Issue 3, (Marshall, 1994).
Schematic of the pre-amp circuit, 8280-62-02 Issue 8, (Marshall, 1996).
Schematic of the power-amp & PSU, 8280-63-02 Issue 4, (Marshall, 1994).
Schematic of the line out & speaker out, 8280-64-02 Issue 3, (Marshall, 1993).
8222 Valvestate, 2x 100W 2×12″ stereo cabinet
This 2x 100W cabinet was fitted with two 12″ Celestion G12-T100 speakers and is switchable between mono and stereo operation.
8412 Valvestate, 140W 4×12″ 8Ω cabinet
This 140W cabinet was fitted with four 12″ Celestion G12L-35 8Ω speakers.
See the Marshall Amps Valvestate page for more information on the Valvestate amps.
