Heterodyne Mixer (CB4291E)

This is a typical 80's FM radio mixer circuit. The circuit was found in a documentation of the time.

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Battery Test (CB17434E)
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This conventional LED flasher circuit has a configurable multivibrator configuration with PNP...
DRV8x Brushed Motors Driver
April 2017 - New Texas Instruments DRV8x brush motor drivers for 1.7 to 8 A currents and voltages...