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, which presents a certain danger and should be used with caution, was found in the...
We found this circuit in the Linear Applications Handbook of the National Semiconductor from 1994....
This audio oscillator is from a 1957 Raytheon publication. The tone generated depends on C2 and C2...