Holy Hathaway Posted March 18, 2022 Report Share Posted March 18, 2022 I am having huge difficulty with op amp circuit used in TA7642 radios, I cannot figure out how to attach the lm301 chip to have a gain of more than 200 (10 u cap between pin 1 and if I give it too much signal in 50 k ohm pot then the radio just makes a farting noise. My problem is that I need to figure out which lowpass or highpass filtrations between the speaker pin 5 and the 470 n capacitor and which resistors I need to reduce the hissing noises without any distortion or clipping when I try to make it louder. Quote Link to comment Share on other sites More sharing options...
simon munyua Posted April 24, 2022 Report Share Posted April 24, 2022 Hey. I have been working with an OP- Amp and I got several educational content on how you need to do the connection of the OP-AMP. Check Pocket Op Amp Lab - Share Project - PCBWay to be in a safer place. You will be able to understand several characteristics of the op-amp and how to do the connection of the same amplifier. Quote Link to comment Share on other sites More sharing options...
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