This type of circuit and with this integrated circuit appears several times on this website. The circuit has the components dependent on the desired current in the load.
This simple TTL circuit indicates which was the first to press one of the four pressure switches. The...
This amplifier for hearing aid was found in a 1968 documentation using an integrated of the time....
This circuit was found in a 1964 Electronic Design. The components are from the era and the load...