This high-power flasher for incandescent signaling lamps was found in a 1980s General Electric documentation. The circuit has a photoelectric control and is powered by the 110V grid.
This is the basic configuration of an operational amplifier sample & hold circuit. The FET and...
The integrated circuit 4136 consists of operational amplifiers of type 741 in the same enclosure and...
We find this circuit in a 1987 publication. It makes use of comparators constructed around the 741...