We found this circuit in a 1967 IEEE documentation. The circuit uses discrete components of the time based on the 1.13 MHz frequency used with oscilloscopes at the time.
This traditional circuit was obtained in a 1974 documentation, but can be mounted today with the...
This circuit was suggested by General Electric in a 1965 documentation. The circuit can be...
This excellent quality transistor amplifier using Darlington transistors was found in a 1980s...