This circuit was found in documentation from Analog Devices, serving to measure temperatures from 0 to 300º C. The components are from the period.
This circuit fires at the touch of a sensor, passing its output from high to low in a time given by...
This circuit was found in a 1967 US publication. In it we have the implementation of a ring...
The strength of an audio signal can be controlled by touching sensors. Keeping the finger in...