http://www.grayhill.com/products/rotary-switches/

A 6 pole/deck 9 deck switch should do it. It will be hard to turn, and expe=
nsive in small quantities.

Sent from a Microsoft, Android or Apple device =20
(Either mobile or desktop)=20

On Sep 9, 2013, at 12:59 AM, YES NOPE9 <yes@nope9.com> wrote:

> I would like to A/B switch 50 digital signal lines with a mechanical swit=
ch.   Switch must be break before make.  Switch time can be several seconds=
..  Number of cycles will be less than 5000.  Does any product or design con=
cept exist ?
> Best
> Gus in Denver
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