Found in a 1965 General Electric Hobby Manual, this timer was originally created to operate with photo magnifiers of the time. The circuit can be adapted for other purposes.
This circuit consists of a rearrangement of the previous circuit also using 4 relays. We found this...
This circuit limits the intensity of an audio signal from a control voltage. The circuit is from a...
This limiting circuit or Clipper was found in a 1977 documentation. The circuit uses only passive...