Found in an Electronics World of 1968, this circuit is indicated for applications in photography making the control of a camera aperture. The components are from the time.
This circuit is used in VHF and UHF superheterodyne receivers. The circuit is from the 1964 RCA...
This circuit is from the time when seat belts were still being adopted. Obtained from a 1976...
This circuit found in a 1964 US publication reverses the signal level by providing 9 to 0 V...