This circuit was found in a 1965 US documentation. The circuit converts a DC signal to a 400 Hz AC signal. Transformer data was not provided.
This circuit is found in a 1975s documentation for radio amateurs. It was developed to recognize a...
This experimental good sensibility radio was obtained from a 1968 magazine. The magazine no longer...
Found in American documentation from the 90s, this circuit converts 28 V to 155 V with a frequency of...