Rickenbacker International Corporation - Forum

M-11-A Schematic
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Author:  crookedtodd [ Mon Apr 27, 2015 2:54 am ]
Post subject:  M-11-A Schematic

Does anyone out there have a lead on a schematic for a Rickenbaker M-11-A amp?
I have found the M-11 in a few spots. It's similar to the "A", but the "A" uses 12AX7's and has an added tremolo.
My brother picked this amp up recently, and wants me to get it up and running. I took a peak under the hood, it looks to be a '56 by pot and speaker codes.
I haven't begun to troubleshoot it yet, besides my brother initially turning it on. Sounded like leaky coupling caps or bad pots when sweeping the controls. I was hoping to find a schematic to help verify things before poking around.
Once I get working on it, I'll post some pics. Pretty sweet amp!

Thanks in advance for any help you can give!

Author:  JohnHall [ Mon Apr 27, 2015 6:44 am ]
Post subject:  Re: M-11-A Schematic

The M11 schematic here on the site should be the same, except for the tremolo circuit in the preamp portion.

Author:  crookedtodd [ Tue Apr 28, 2015 9:47 am ]
Post subject:  Re: M-11-A Schematic

The tremolo is not functioning on this amp. Is there any of the schematics available that use the same tremolo circuit?
Also, There are 2 - 12AX7's and 1 - 12AU7 in the preamp. What is the intended tube placement?

Thanks for your help :)

Author:  Ronaldoi [ Mon Aug 15, 2016 4:17 am ]
Post subject:  M 11 A Schematic

I am trying to improve the sound of my wah, and I think a good way to do this is to make it true bypass. I have searched and cannot find a good schematic to explain how to do it. Any help? I have a regular Crybaby. Thanks.

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