MOTM

Warning:  DIY content.

updated 831 info links as promised:

* Note resistor changes:
(R13, R24, and R35 from 100 K to 180 K).

http://www.modglin.com/larry/jlh-831/831panel.gif
http://www.modglin.com/larry/jlh-831/831parts-list.doc
http://www.modglin.com/larry/jlh-831/831paper-proto.jpg
http://www.modglin.com/larry/jlh-831/831schematic-1of3.jpg
http://www.modglin.com/larry/jlh-831/831schematic-2of3.jpg
http://www.modglin.com/larry/jlh-831/831schematic-3of3.jpg
http://www.modglin.com/larry/jlh-831/831photo1.jpg

Larry Hendry

PS:
Disclaimer:  I am not an engineer.  The information provided is DIY content
and for DIY fair use only.  I am not selling any modules.  I guarantee
nothing.  I can only confirm that the 831 3-IN 3-OUT voltage shifter circuit
works perfectly as shown.  I will have the 822 working this week.  But, the
circuits are essentially the same as the 831, so I imagine it will be OK
too.