This wireless infrared remote sound transmitter is from an article published in the August 1988 issue of Radio Electronics magazine. The circuit can be built using modern, higher-power LEDs.
This circuit is from an 80's Radio Electronics. It triggers a load powered by the power grid from...
This circuit is used to test SCRs like the ones of TIC series. The simulation shows the power line...
This circuit is from a 1965 General Electric manual. It uses components from the time that admit...