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Author Topic: Betabass shematics  (Read 2306 times)

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Betabass shematics
« on: November 19, 2007, 09:01:55 am »

Hi everybody
I recent bought a Sunn betabass 115 in pretty good condition with the exception of the footswitch plug, that is missing. I found the footswitch shematic on this site but I desperately miss the amp shematic, in order to know who is going where. Somebody can help?? Thanks M.


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Re: Betabass Footswitch connector
« Reply #1 on: November 19, 2007, 02:02:48 pm »

I was kind of wondering about the connector myself. My amp had the connector with a number on it so I typed it into the search engine at Allied and Bingo! found the part.

The connector is sold by Tyco which purchased AMP (the connector company) some years ago I believe. You have to purchase the contacts sepatately. I have given the numbers for contacts designed for 24 to 20 gauge wire. The 512 numbers are the Allied stock numbers.

I have not ordered the parts and cannot verify that I have the correct numbers.

The BAD news: They sell contact insertion and extraction tools at almost $20 each. I don't know if these are really needed or not.

Square flange part for amp      512-1150        206061-1
Pins for above                       512-1125        66103-3     (24-20)

Free hanging plug                   512-1100       206060-1
sockets for above                   512-0618       66105-3     (24-20)
Cable clamp                           512-8609       206062-3

On the Beta Lead you have reverb. Does the footswitch for the Beta Lead have coax in it for the reverb?


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Re: Betabass shematics
« Reply #2 on: November 19, 2007, 02:19:02 pm »

The Beta Bass schematic is under "Beta Service Manual" (along with the lead schematics) or something of the sort in the Service Manuals section of the site. Its a jpg per page, so if you're on dialup it'll take a while.