renaissances21 said:
Hi I had build my own cct but the signal and waveform I get was very small.So I intend to rebuild another cct,(pls refer to my pic name as propose cct),can anyone advise me on the op-amp to use and the resistors values to use,so I can make my signal and waveform big as compare to my current one.Thks
(pic/photo)
http://community.webshots.com/user/renaissances07
You proposed circuit is an inverting amplifier, so the output will be inverted - is that what you want?.
Your original circuit is far too blurred to read, but the second stage looks to be a similar inverting amplifier?, why not just change the feedback resistor in that and increase it's gain?.