This circuit is from a 1975 Miniwatts magazine, therefore using Philips components from that time, now difficult to find. The circuit directly controls a heating element via a Triac.
ECL logic circuits can operate at very high frequencies. This circuit was obtained from a 1977...
Found in a 1977 publication this circuit is relayed from a signal carrier in a receiver....
This circuit is from a Motorola manual generating signals up to 200 kHz. The publication is from...