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Voodoo Lab Pedal Power Manual - original version
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I have a Mesa Mark 1 Reissue that I would like to modified it (mostly the Bass issue) I heard about your mod and would be interested to know more about it. Is that something that any good amp tech could do easily? also, I heard about a reverb mod, does it have to be done as well to correct the flabby bass or not. I want as little mod as possible, that's why I'm asking.

Thanks

Steph
Montreal, Canada
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Ayan
Ayan
I am attaching two sets of schematics: one reflects the way my amp arrived from the factory and the other has the mods I mentioned. These are 25 years old and I haven't had a Mark I since maybe 2001 or so. Use them at your own risk and I hope you'll understand if I am not really willing to email back and forth with a tech to discuss the mods -- I abandoned amp building 15 years ago.

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  • MarkIR_1.jpg
    MarkIR_1.jpg
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  • MarkIR_2.jpg
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  • MarkIRRevB_1.jpg
    MarkIRRevB_1.jpg
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  • MarkIRRevB_2.jpg
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Ayan
Ayan
My mods for the Mark IR addressed: a little too much bass, too much unusable gain in Input 1, lack of depth on the reverb, and lack of a bias adjustment. They’re easy to implement, the only thing is that the amp is built on a PCB and the traces are not all that robust, so one needs to be careful to not apply too much heat otherwise the traces may lift, which would require having to jump them.
Do you still have the '57 junior for sale? If so, I am interested and have s few questions. For some reason it is not letting me respond to your marketplace listing where I saw it.
Thanks
Kevin
57gold
57gold
Hi Kevin,

Not sold yet but have a local, credible guy coming to see and possibly buy early next week.

Serial #7 6025

Can send more photos if you send email.

Frank
K
keemer
Hi Frank
Yes, could you send more pictures. That would be great. Also of the original case. Here is my email:
kevmerrill@roadrunner.com
Thanks
Kevin
K
keemer
Hi Frank
Not sure if you got my response from earlier but I would definitely like to see more photos and talk to you more about the guitar. My email address is:
kevmerrill@roadrunner.com.
I am in Los Angeles.
Thanks
Kevin
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