modded marshall
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Need help identifying mods on 1983 JCM800
Recently acquired this 1983 JCM 800 2203 model with all these mods done to it. I have no idea what has been done to it or anything. Could someone please tell me exactly what mod this is and what exactly it does, thank you! Features I notice: 4 input front, maser volume and preamp are now volume...- rccj777
- Thread
- 1983 jcm 800 2203 jcm800 help jcm800 plexi mod modded marshall unknown
- Replies: 1
- Forum: Marshall Amps
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Correct schematics for S.I.R amplifiers #34 and #36
Hello guys. I'm looking for legit (or close) schematics for the famous S.I.R amplifiers #36 and #34, made by Frank Levi. A friend found this schematic in his personal files (attached). What do you think of him? We will be happy to receive different opinions. We would also like to hear from...- Antônio S
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- 1988 jcm800 2203 afd frank levi jmp 1976 modded marshall sir34 sir36 sir39 slash tim caswell
- Replies: 2
- Forum: Building the Classics
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'76 Marshall JMP 2203 with Custom High Gain Mod
Hi Everyone, I just finished modding this amp with a custom 4 stage non-cf high gain mod. It's based on the gain channel of my 2 channel prototype, but I've tweaked it for a long time. It also has a tube fx loop. There's a bass shift switch on the bass pot, a mid voicing switch on the gain...- Eddylenz
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- high gain marshall mod modded marshall
- Replies: 14
- Forum: Marshall Amps
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What is this?
I was hoping someone could tell me what the tube on the far left of my 2210 is for. Obviously modded, but not sure what it is. I recently took it to a shop for a cleaning and tune up and asked the tech what it was. He wasn't sure. I got it back and haven't done much with it. Months later plugged...- SpeedWeenie
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- 2210 modded marshall
- Replies: 14
- Forum: The Workbench
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[Help] [Pics] Marshall cracking after Mod
I recently re tolexed my Marshall head and cab after they were damaged from a falling isolation shield. The entire amp and cabinet were taken apart and everything was put back afterwards, aside from the metal shielding tape underneath the chassis (that got glue on it, and was replaced with...- QLYDEmusic
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- fix marshall repair modded marshall mods problem with amp problems repair
- Replies: 15
- Forum: The Workbench
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1973 Marshall Super Lead with Gower Jose Mod
Hi Guys, I'm a full-on Marshall guy and am glad to own one of my dream amps, which is the Dan Gower Jose Marshall. It's the best amp I've ever played. The only amps that I'm still interested in, are a stock Plexi and a real Jose Arredondo modded Marshall. Here's a demo of the amp and here's a...- Eddylenz
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- dan gower jose mod modded marshall mods opinion orange shootout super lead vintage
- Replies: 33
- Forum: Let's Talk Vintage
