Using a 4046 PLL we found this circuit in the December 1989 issue of Radio Electronics magazine. The circuit operates at 220kHz, but this frequency can be changed by changing C3.
This step of two transistors has a high input impedance due to the use of FET. We can use BF245 for...
This circuit uses an operational that is not currently common. We found it in an old American...
June 2017 - Mouser's new AQZ series solid state relays with switching capacity from 5A to 200V are now...