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.
The critical component of this circuit is the transformar. We found it in an 1980s documentation....
This PLL circuit includes a small amplification stage. We found it in the December 1989 Radio...
January 2017 - Mouser Electronics is introducing new, ultra-thin Vishay Displays OLED modules. The new...