5 Channel Lock-in amp
This was designed at UCSB, for the Astro Physics Group and Goddard Flight Center Greenbelt Maryland, also has one.
Consisting of 5, low noise pre-amps, each with synchronous demodulator and reset integrator with separate isolated power supplies to reduce common mode noise.
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Geoffrey T. Cook, electronics engineer, specializes in high quality audio design for live acoustic reproduction and recording. Forty years of experience in electronic engineering bring insight into analog circuitry design for tube and solid state applications.