Low frequency clocks (CB9320E)

These circuits were obtained in an Electronics Now from the 90s. The integrated circuits are from that time and the power can be between 1.5 and 2 V.

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12V LM350 Battery Charger (CB15650E)
The indicated circuit performs a slow charge of 12 V batteries maintaining a constant current of...
RF Generator (CB7424E)
Found in a 73 magazine from the 1980s, this circuit generates signals from 3.2 to 22 MHz. FETs can be...
Three Phase AC Motor Control (CB12953E)
In the figure we have a three-phase AC motor control for voltages up to 600 V or 1200 V depending on...