Found in a 1967 Electronic Design, this circuit operates in a range of 0 to 1 V input with frequencies determined by C2. The components are from the period.
Found in an Electronic Design from the 90's, this circuit uses common components. The circuit is...
When the sensor receives light, the relay closes its contacts and remains so even after the light...
This circuit produces pulses of 90 V at intervals that can reach 5 minutes. The circuit is from a...