Question about Boston Acoustics BA735 Computer Speakers

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More info for you

I apologize for not giving enough info the first time. I should've known better but I think my mind was worn out by then. I contacted Boston Acoustics and they want me to send it to them for repairs which I'm sure will have a ridiculous price tag. They wouldn't give me the part number or any info at all. I live in Point Pleasant, WV but as for parts dealers I'm most likely better off shopping online. As for the specs on the potentiometer all I can give you is what I've figured out... 50k -- the total shaft is 15cm in length, the first 5cm of that is threaded for attachment -- diameter of shaft looks to be 1/8" -- most length of the shaft is flattened a bit down one side, looks like a "C" -- the pot is a bit rectangular with 3 main pins and 2 board attachment pins -- measures about 3/8"W x 3/16"thick x 7/16L -- there is also a "B" near the 50k marking and a number along the side of the pot 9924. Hopefully this info is more helpful!! I guess my internet skills are not so good since I've had no luck finging this thing. Thanks again!!

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The pot is a 50k ohm audio taper pot with an integrated switch. The shaft is called a "D" shaft and is used with knobs that have a set screw. The 3 pins are the for the resistance with the center pin being the wiper. The other two pins are for the on & off switch.

It's going to be hard to find the exact replacement without knowing the manufacturer of the pot. It looks like the one you have is soldered to a PC board and the pins have to be in the right spot on the new pot order to match up with the PC board.

What you can do is buy one with solder terminals. Rotate the pot so that the terminals are facing up and just solder wires from the terminals to the PC board. If the shaft is to long, you can cut it down with a hacksaw.

I am looking for sites for you to call. here's a few I found thus far:

http://www.farnsworthelectronics.com/potentiometers.htm
http://www.ctscorp.com/components/potentiometers.htm

Posted on Jul 15, 2008

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