This traditional circuit generates a 200 Hz sinusoidal signal. The frequency depends on the capacitors and the transistor can be a BC548. We found this circuit in a 1979 documentation.
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...