This physical line servo control uses components that are not currently common. The circuit is from an 80's documentation and is powered by a voltage according to the servo.
July 2017 - The new touch switches from Alps SKPS series for surface mounting can now be purchased from...
One of the two D-type Flip-Flops found in a 4013 can be used as a nonretriggerable monostable as...
This circuit operates at a voltage of 1.3 V from a single mercury cell. We found in an old...