Hughes suggests this circuit in a 1968 documentation. The circuit uses old transistors that can be replaced with equivalents. MOSFET is the critical component of the circuit.
This is the basic configuration of a CMOS 4027 integrated circuit as a flip-flop. The circuit can...
This circuit is from a 1977 Radio Shack manual. The photocell is an LDR and the operational one is a...
The speed of the motor connected to this circuit depends on the amount of light that strikes the...