# Which software is used for producing those schematic sketch? [closed]

It's a while that in the internet I'm finding schematics with hand-made pencil drawing style. I've tried to search a little bit for the software used to make them but I didn't find it.

Here some examples:

## closed as off-topic by Andy aka, Leon Heller, Vladimir Cravero, Rev1.0, Daniel GrilloAug 6 '14 at 11:36

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• Whenever I see a hand drawn circuit with scribbled values I think "prototype" or even "unproven" so, I'm wondering why? Is it just aesthetics (somehow?). Maybe writing values in Roman numerals is also something to consider - a 47 ohm resistor would become $IIIL\Omega$ and a 68ohm $LXVIII\Omega$ – Andy aka Aug 6 '14 at 8:03
• I suppose the kids will be asking where they can get this wiggly font they saw on grandpa's old personal letters. Clearly, there is no other way. – Samuel Aug 6 '14 at 8:23
• @Andy - "Nothing good can come of a mixture of Latin and Greek" (Lord Reith, first Director General of the BBC ... on Television). – Brian Drummond Aug 6 '14 at 9:31
• The second example above is from ecs.umass.edu/ece/m5/tutorials/tip122_transistor_tutorial.html - Wow! - look at that breadboard layout!. So tidy! And many more like it. A superb example overaall here - such art is seldom seen any more - at least, certainly not on my workbench :-(. – Russell McMahon Aug 6 '14 at 9:35
• I don't believe these are generated by software. If you look closely at the second diagram, notice that in "TIP122", the 2's are slightly different. Also the "1" in "R 1KΩ" and "TIP122" has a different angle. In the third diagram, the two T's in "OUTPUT" are slightly different. I conclude these are very skillfully hand-drawn. – JYelton Aug 6 '14 at 16:00