Bruce Winter
CVRS Member

Jean-Pierre –
I’m afraid the cost of OrCad ($300.00 for 1 year license) is outside of my budget for just the occasional use. I would not need all the professional features. There are several free open source programs. I am trying one called Fritzing which is quite supportive of the Arduino boards in projects. Somewhat of a learning curve and it tends to use symbolic symbols for the components rather than the traditional old school schematic symbols which I am use to.
As for grounding the output receptacles, I realize vintage radios had a two wire plug without a ground, but even the Hammond 171 & 172 series isolation transformers have the ground connected.
The fuse in the output of the variac was a wise move as I have seen too many cooked variac windings that were overloaded.

Thanks again,