Guitar Making and Repair/331 Schematics


QUESTION: I just bought one, a 71, and it worked great for about a half an hour before the transformer burned up in what I believe is the original power supply. I have read it takes 18v AC which I should be able to find, if you tell me what I read was true. Also I believe I read that you have the schematics of the second generation circuit. It also came with a box of clear GE bulbs with just a number "19" stamp on the box any thoughts on how they were to be dyed? Any chance of getting those schematics? Any help will be greatly appreciated.

ANSWER: 18VAC is correct. The bulbs are the correct ones and can be colored using a craft store "stained glass" paint. Three colors are red, cyan, and green on type 2s.

I'll have to search my files for those schematics...


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Thanks for the confirmation that the 331LS was 18vac I had an 18.5vac supply from an old Behringer 802 mixer (read the label, it's actually 18.5 x2 at 250milliamps each and a 3v with a strange plug) and it works fine. Would the promise of say a twenty five dollar donation increase the chances of your search for the schematics? I would like to keep this thing working as long as possible.

I'm not particularly money-motivated, but I am extremely busy these days and really just need to think about which computer or hard drive I placed the schematics on, and retrieve a copy.

So far I've been unable to find them...should have printed out a hard copy and filed it.


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paul wilczynski


Anything concerning building, tuning, theory of construction. Specialist in finishing (40 years' experience); extensive knowledge of Rickenbacker instruments of all vintages. Rickenbacker factory connection on personal level; ONLY licensed Rickenbacker luthier in the world.


Extensive. I build and restore electric and acoustic guitars (steel string and nylon classicals). I build all of Rickenbacker's acoustic instruments in my own shops in San Francisco and Healdsburg, CA. I write two online columns with a total of over 15,000 posts since January, 2005. Google my name or my screen name, "jingle_jangle".

American Guild of Luthiers.

Mostly automotive and hobby (in the past).

Manage the University Department workshops(Industrial Design) in SF, also have taught and written design and fabrication classes for almost a decade. Have produced online classes, written curricula, syllabi, etc. Run an online forum for my students (500 in number).

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Awards won for product, vehicle, and preschool toy design in the past.

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Rickenbacker International Corporation, Waterstone Guitars LLC, many Fortune 500 companies before I worked in guitars (I ran a design studio for 22 years). I have hundreds of individual--private party--customers.

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