[TowerTalk] hairpin

[CubexCo at aol.com]

In a message dated 9/29/2004 4:34:20 PM Eastern Daylight Time, 
towertalk-request at contesting.com writes:
Could anyone help me with the measurements of the Hairpin match used on
the Telrex TB5EM.  I purchased a used one and the hairpin match is
missing.  I do have the blueprint drawings of the antenna, and know the
shape, but I do not know the dimensions.  It is about a number 10 or 8
gauge aluminum wire bent in the shape of a "U" and appears to be the
width of the attachment points on the driven elements.  I can trial and
error the length,  but I hope to get some dimension here.  I used to
have Telrex TB6EM 32 years ago and loved it.
===============
I think you are correct on the gauge of the wire (stainless steel) at about 
#10 guage.  The length of the loop should be determined by the hole in the boom 
where the end of the loop was fastened down with a sheet metal screw.  The 
width is a little less then the attach points bend the wire toward the boom 
about 1" (on each side) starting about 3 to 4 inches from the connection points.  
The "Backend" at the boom attachment point has a uniform semicircular shape.

Regards,
Norman W4QN