Found in RCA documentation two years 70, this circuit triggers an incandescent lamp at dusk. The circuit uses an LDR of the time.
This circuit is from Mullard 1969 documentation. The circuit operates at a relatively high supply...
With this circuit we can control a load from 500 mA to 1 A, depending on the transistor, using a low...
The purpose of the circuit shown in the figure, obtained from a 1972 documentation, is to delay the...