Found in Philips documentation from the 1970s, this circuit uses components from the era. The stability is 0.045% per centigrade degree.
This simple TTL circuit generates sequences of musical notes that can be determined by adjusting R5 and...
The double T of this circuit makes it amplify only the 1 kHz signals. The circuit can be used as a...
With a touch of the sensor, the SCR fires and keeps the lamp on. To deactivate the circuit, it is...