This circuit simulates the signal produced by a muscle, serving to adjust medical equipment. The circuit is from the 1968 Mullard. Transistors support modern equivalents.
This isolated shield is from an old documentation, making use of an operational one of the time. It...
We found this transmitter circuit in a 1990s spy book. The coil data is provided along with the...
In this circuit we have the way to use common diodes to obtain low regulated voltages in a single...