Recent content by Bigredbloke

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    Can I hook a 50 Ohm Variable Attenuator To This Circuit?

    The is the Output circuit of a microphone I'm using to look at photoacoustic signal, is just an Op-Amp, connected to a high pass filter which is using a 30 Kohm resistor. Sadly, the signal the microphone gives is too strong for the lock-in I'm using to read the signal, and overloads it. I want...