This circuit was found in a 1966 EEE. What it does is it converts the logic levels of 0 V and +4 V into -6 V and +6 V. Some older type transistors can be replaced by modern equivalents.
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...