The male XLR plugs into an unbalanced XLR to 1/4" Mic cable.Ĭondensor Mic Components from Digi-key PH 1-80 The second mic uses a male XLR plug as the original plan called for, but all components and the 9v battery is located near the mic (epoxied on the back of a 9v. My first mic was built in a metal project box and has a 1/4" jack which an instrument cable is used for the mic cable. The original circuit plans were from a project published in Tape-Op magazine.Ĭhanges I made were to use an Omnidirectional Panasonic WM-61A Mic cartridge which has a freq range of 20-20kHz, Sensitivity of -35dB and a Signal to noise ratio >62dB. This page details a pair of Condenser Mics I built and tested.
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