This mic preamp project comes from an article written by in 1998 Paul Stamler for Recording Magazine. In the article, Stamler gave instructions for building the solid-state, transformer-balanced mic preamp he used to do microphone tests for the magazine. The preamp is dual-gain-stage, IC-based design with a bypassable 3-band equalizer.
Image courtesy of Recording Magazine
- Jensen input transformer
- Minimal use of capacitors in the signal path
- Runs on +/-21.5V rails
- Power supply design included
- EQ section consists of high and low shelving filters and mid-range filter fixed at 1.8kHz
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See the original Recording Magazine article for more information.