Found in a 1970 EEE, this circuit uses general-purpose transistors of the time. Transistors support equivalents and the ramp time ranges from 0.1 seconds to a few seconds, depending on C1.
This circuit is from an Electronics World of 1967. The circuit slows down the activation of a...
This circuit for analog TV was found in a 90s EDN. The integrated circuits used are from that time...
This circuit allows the use of a milliammeter in the measurement of low frequency alternating...