This charger was found in the February 1978 issue of Radio Electronics magazine. The circuit is for low current, only 150 mA, and has a 12 V transformer in the power source.
The movement of the indicator needle indicates when something or someone approaches the sensor, an...
This circuit was found in an Electronic Design from 1968. Its purpose is to produce synchronized trigger...
Using the CMOS IC 4046 we found this VCO in the November 1984 Radio Electronics magazine. The...