Analog stuff

“THE BEER-WARE LICE NSE” (Revision 42): jensd@jensd.dk wrote this file. As long as you retain this notice you can do whatever you want with this stuff on these pages. If we meet some day, and you think this stuff is worth it, you can buy me a beer in return :-)
(C) Jens Dalsgaard Nielsen
credit for license this goes to phk@FreeBSD.ORG