Air step mercury switches

[Don Bradner]

There are parts of the electrical drawing that simply don't compute. Calling the
switches "mercury" is only part of it.

I went ahead with a fabrication, and it is working fine.
http://www.arcatapet.net/travel/bluebirds/steel.jpg

The original was about 20 gauge, and I replaced with 12 gauge. I had to make two
attempts at it to get the length just right; after that it was just a matter of
releasing the switches and moving them to make a solid contact with the plate at
each end of travel.

On 3/30/2007 at 3:45 PM Leroy Eckert wrote:

>I printed off the picture. I honestly do not remember seeing that kind
>of set up on mine but I will tell you for sure tomorrow night. Those look
>more like travel limit switches than mercury switches to me. The drawing
>on my system is difficult to understand, for me anyway.

Don Bradner
90 PT40 "Blue Thunder"
Eureka, CA