Found in Philips documentation from the 1970s, this circuit uses components from the era. The stability is 0.045% per centigrade degree.
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...