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 View Post: DIY Workshop » Apheared 47 on a breadboard - plz help
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ahall


HeadWizer

Joined: Jun. 25, 1999
Locale: San Diego, CA USA
Total Posts: 243

 posted 07-04-2003 08:39 AM CST (US)   View Profile for ahall   Send PM to ahall   |  Edit Message  |  Quote Message in Reply
It's the same with this circuit. The gain is set to 3 now by the 10K and 4.7K resistors. If you lower the 4.7K resistor to 2.5K, the gain will be 5. The same thing can be acomplished by increasing the 10K resistor. The gain is set by 1+R4/R3 in the CMOY example. In your schematic it's 1+(10K/4.7K)=3.
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