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Innovv C3 External Microphone Mod

DIY from Alan in UK. The 2.5mm switched jack socket I'm planning to fit to the end of the C3 case - probably where the LED is currently mounted. I plan to cut the +ve wire on the internal microphone and route a wire to the jack socket and back. When the 2.5mm plug is inserted, it will break the return connection to the internal mic, and will instead connect the +ve lead from the external mic. I'm planning to use the standard C3 external mic, so hopefully there should be no impedance mismatches. This will avoid the need to make a special combined power and external mic lead, and will also switch the internal mic off when the external mic is connected - if it works, that is!

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