Marshall 2205 Solid State Slave Head

[Ted]

Bit of a weird one this. Its solid state, definitely labelled 2205. From the trim I'd say mid 70s.

Anyone got a schematic? Looks like a pretty uncontroversial transistor/op amp design.

[Jazz P Bass]

Marshall Amps Info & Schematics
Look at the 5210 model schematic, see if that is the one.
Page #1 of the manual lists a 2205. http://www.drtube.com/schematics/mar...-sc-manual.pdf

[doctor]

Bit of a weird one this. Its solid state, definitely labelled 2205. From the trim I'd say mid 70s.

Anyone got a schematic? Looks like a pretty uncontroversial transistor/op amp design.

2205 schematics that I have relate to JCM800 tube amp, not to transistor/opamp design.

[Ted]

2205 schematics that I have relate to JCM800 tube amp, not to transistor/opamp design.

Yes I'm familiar with the 2205 JCM800 valve design - thats why i said it was weird.

A bit of poking around on the net shows that this one was introduced in the mid 70s - only lasted for a year or so - and the model number was reused for the JCM800. It appears to be the same as the power amp section of the 2098 Solid State JMP.

[doctor]

On the first page is written:

"2205_________50 watt Split Channel Valve"

In other words, if model is 2205, the amp is valve.

[Ted]

In other words, if model is 2205, the amp is valve.

I'm afraid you're mistaken. The transistor 2205 is mentioned on P.146
of The Illustrated History Of Marshall:

Amazon.com: A History of Marshall The Illustrated Story Of The Sound Of Rock (9780793525096): Michael Doyle: Books

[J M Fahey]

Big problem is, Marshall *does* reuse model numbers, in absolutely unrelated products.
The 2205 in that user manual gets paired with the 5210 which is *definitely* a transistor amp.