This General Electric circuit produces pulses of light only when light stops shining on the sensor. Equivalent SCRs can be used and the trigger adjustment is done in a trimpot. The maximum load is 40W.
This circuit is part of an article published in the March 1990 issue of Radio Electronics...
With a mains-rated transformer and 1:1 winding this benchtop circuit was found in the January 1995...
This circuit was found in a Popular Electronics of the 90s. We can build it based on modern...