Found in the September 1972 issue of Radio Electronics magazine, this signal injector is based on the HEP580. The circuit is powered by two batteries and its frequency is basically given by C1.
This low speed circuit was obtained in a 1966 Microelectronic Design. The circuit has a 10 MHz...
This circuit from Delta Products was published in the May 1974 Radio Electronics magazine. The...
This circuit was obtained from a 1977 documentation. The circuit does not require a symmetrical power...