> Is the end of the tube shown in the picture the end that has the
> connector welded to it?

Yes, but the transistor (as it is right now) is actually pretty far inside
the tube, new boards are in process of being laid out.  The transistor shown
in the pictures is actually not connected it was just to illustrate the size
& how it will make contact to the curved surface.

I can put the transistor wherever it needs to be if you have an idea that
requires it to be in a specific location.

As an additional FYI... The connector has wires coming down through the
center that get soldered to the output board (not leaving much room for a
transistor to make contact).  Also, I make a case ground connection (from
each circuit board to the case) through stiff beryllium-copper springs
(stampings) that make contact to the bottom-outer edge of the connector.
These springs are compressed when the connector is mounted to the sensor.


This is confusing, I know, so here is an illustration...

http://home.fuse.net/theannos/illustration.jpg 



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