This circuit is from a 1967 documentation. It consists of a sensor for memories used at the time. It can be made with modern equivalent transistors. Note the 4 V symmetrical power source.
This configuration, which appears in other projects in this section and on the website, shows how...
This circuit should be placed between a turntable and recorder or playback media from the input to...
This goniometer for the medium wave range was found in a 1967 documentation. It can be adapted to work...