This circuit was found in a 1967 Electronic Design and can be adapted to use modern equivalent components. The circuit provides a symmetrical voltage with the same value as the single input voltage.
In the figure we have the way to connect two high power operational amplifiers LM12 to double the...
This circuit uses the Linear Technology LT6505 and was found in a 2005 manual. The circuit is for 24 V...
a This circuit was obtained from a 1978 Practical Wireless. It causes a low-power 1.5V lamp to...