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 circuit comes from a 1966 NASA documentation. The circuit makes use of discrete components and...
This circuit, obtained from a 1989 publication, can control motors up to 1.5 A. With the LM350 this...
We found this circuit in a documentation from the 90s, which can be adapted in most cars of the...