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Dual gate MOSFET heterodyne mixer

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Dual gate MOSFET heterodyne mixer

Postby blackice505 » Sat Mar 03, 2012 9:47 am

Any ideas or info related to a heterodyne mixer for combining 2 ultrasonic frequencies,
getting the sum & difference and using a low pass filter to get a frequency that can be
heard? A dual-gate MOSFET could possibly be used as the mixer.
blackice505
 
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