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.
We found this circuit in an old American publication. It is a signal emitter that sends a command to...
Based on the CA3161 and CA3162, this circuit was found in the July 1990 Radio Electronics...
This two-transistor amplifier can be used as power stage for intercom, experimental receivers,...