Here's an example of a schematic I drew using a 2d CAD prog.

https://ibb.co/QcSzgtM

It is of course a JPG of the original vector drawing. Meaning a bit fuzzy
compared to the original. And gets worse if you enlarge it, as you
probably would to examine a particular part of the drawing.

If sending it to someone who didn't have a prog to view the native file, I
send as a PDF. That retains the vector format and allows enlarging to any
size you want with no loss of detail.

For something simple, anything at all probably works. But well worth
learning how to use a prog that can do all such things, regardless of
complexity. I did use DraftSight on the PC, but that no longer has a free
version. But there are others.

--
*Be careful about reading health books. You may die of a misprint.

Dave Plowman London SW
To e-mail, change noise into sound.