[Elecraft] APP crimp tool

[KBG Luxford]

I started off with the inexpensive tool.  Eventually I got the hang of 
it, but found that after crimping, the connector would often be bent out 
of shape.  The tongue would be bent at an unnatural angle while the 
contact body would be pressed out of round.  After both problems (if 
they occurred) were corrected, the crimp seemed OK.

I then purchased the $50 West Mountain Radio ratchet crimper and it is 
so much easier to use.  I found that if the connector is inserted into 
the slot (tongue lowermost) and the handles are squeezed to the first 
click of the ratchet, the connector is held tight enough so that it 
won't fall out or rotate.  Then insert the conductor, and keeping a 
thrust on the conductor with the left hand, squeeze several more clicks 
with the right.  This nips up the conductor so that you can safely let 
go of the conductor with the left hand and use both hands to squeeze the 
handles all the way.  (I don't have the strength in the right hand 
anymore to use just one hand).

As far as I can tell, I get good crimps every time.  I use a cyanate 
glue to ensure the housings do not come apart, and also on the little 
locking pin.  A bit of hot melt glue at the back of the housing, between 
and around the conductors reduces flexing at the housing entry, and may 
reduce the possibility of fracture with time.  With this crimper, I have 
not felt the need to use solder.

73
Kevin
VK3DAP / ZL2DAP