This circuit was found in a 1966 General Electric book. The triac and the day are from that time and can be replaced by modern equivalents depending on the load.
October 17, 2016 - Mouser Electronics, Inc. is now offering the Blue Gecko BGM113 Bluetooth®...
We find the original version of this circuit in an English publication (1986). It is a...
The XR220 is a circuit equivalent to the 555 of the 1970s. This configuration from Radio...