Sunday 9 January 2022

Adding a microphone amplifier

With Christmas over and the cold weather preventing me doing much outside, I’m back working on my homebrew transceiver project. With so many sections requiring power, I’ve added a central power point from an upturned strip of Veroboard. I have just added a microphone amplifier circuit. I plan to feed that from a constant signal source so I can check the gain and response over the 300Hz to 3KHz audio range.



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