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Old 10-10-2009, 09:06 AM   #1261 (permalink)
TheSGC
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Quote:
Originally Posted by bennelson View Post
Yep, I've got the BC-20.
I have a manual for it to....um..here...somewhere.

I did try using a Potentiometer in place of the resistor to make an "adjustable" for it. But that didn't work at all!

Please forward me any info you can on making your own resistor setup for it.

For anyone without the manual, Mr Sharkey has a copy on his web page.
http://www.mrsharkey.com/SCT/bc20.pdf
The BC-20 needs 1% resistors to function properly, and a normal Potentiometer is 5-10% tolerance, really really crappy.

I used a 1% 62K Ohm resistor in series with a 1% 20K Ohm Trimpot. This allows me to make small adjustments if needed. That, and I couldn't find a 76.whatever k ohm resistor to do the job, so I raided the schools supply room and found a way to make do and its been working fine for almost a year.

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