Suggested by an American publication of 1964 this circuit is intended for the capture of signals from film tracks recorded by optical systems, common at the time.
This circuit generates rectangular and triangular signals up to a few megahertz. The circuit is...
This circuit is from a documentation from the 50's. The transistors are made of germanium. The...
This circuit was found in a 1967 Electronic Design. The circuit makes use of components from the...