Good old mechanical design

Chagrin:

retrolefty:
Speaking of analog computers, many don't know that Heathkit's first computer offering wasn't a digital one but rather a analog one:

http://archive.computerhistory.org/resources/text/Heath/Heath.Analog.1956.102646297.pdf

The voltages in that thing scare me.

Acquired knowledge and experience can overcome such fears. Lacking those, then fear is probably a good thing. First step to replacing those fears with respect is through proper education.

Lefty