We found this circuit in a 1967 American documentation. It is a transmitter for animal research, monitoring intestinal pressure. The operating frequency is 22 kHz.
Found in a General Electric documentation from 1970, this circuit is intended to supply a power...
This circuit hás a Power output of more than 1 W. It is used in small experimental or low power...
This 1980s circuit was found in Motorola documentation. The circuit uses period components that admit of...