This circuit was found in a 1970's Radio Electronics. The pulse transformer has a 1: 1 turn ratio. The triac must be in accordance with the controlled load.
This circuit is intended to trigger a TTL door or flip-flip from a signal coming from an SCR....
This circuit is from a 1979 publication. The sensor consists of plates or screens that, when...
Bipolar transistors are types of general use like BC548, while the power MOSFET can be of any type...