We found this simple toy organ circuit in the February 1968 issue of Radio Electronics magazine. The transistors were common at the time and the transformer was from a transistor radio output.
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...