We found this circuit in an American 1980s documentation. The circuit can be easily assembled in our day, and care should be taken to use a power supply isolated from the power grid.
![](/images/stories/cir/2281282023_142208_0001.gif)
We found this circuit in an American 1980s documentation. The circuit can be easily assembled in our day, and care should be taken to use a power supply isolated from the power grid.