This circuit was published in the July 1993 issue of Electronics Now magazine. It uses a sensor from the time and triggers a buzzer with a Sonalert-type oscillator.
This power supply is indicated to power small loads up to 30 mA. The original output voltage is 6...
Synchronized key. This circuit was found in a 1966 General Electric documentation. Modern...
This setting appears multiple times on the site from different sources. This is from a 2000 manual...