Electrical and electronic circuit symbols.
https://diqn32j8nouaz.cloudfront.net...s_fullsize.jpg
Previously:
https://www.homemadetools.net/forum/...520#post122895
https://www.homemadetools.net/forum/...8846#post88189
https://www.homemadetools.net/forum/...982#post207110
https://www.homemadetools.net/forum/...508#post208973
https://www.homemadetools.net/forum/...793#post209977
