[Elecraft] normal K3 voltage drop on TX

[Jerry Moore]

Guys, there may be new/better information out there, and I’m agreeable to be wrong. 

 

I just know that our Government spends millions/billions to over research everything. What follows is excerpts from the US Navy Electricity and Electronics Training Series, Module 4, Chapter and page is included as reference.

 

The format of the reference: <chapter>-<page>

 

2-11 - The increased use of crimp-on terminals is due to the limitations of soldered terminals. The quality

of soldered connections depends mostly upon the operator's skill. Other factors, such as temperature, flux,

cleanliness, oxides, and insulation damage due to heat, also add to defective connections. Solder-type

connections are covered later in this chapter.

An advantage of the crimp-on solderless terminal lugs is that they require relatively little operator

skill to use. Another advantage is that the only tool needed is the crimping tool. This allows terminal lugs

to be applied with a minimum of time and effort. The connections are made rapidly, are clean, and

uniform in construction. Because of the pressures exerted and the material used, the crimped connection

or splice, properly made, is both mechanically and electrically sound.

 

My comments: I wasn’t able to find the “limitations of soldered terminals” listed. My best guess is that the limits are more based on correct process/skill at the onset to prevent cold joints AND loss of wire flexibility near the connection. The loss of flexibility potentially being more susceptible to weakening/breaks due to vibration – conjecture on my part. 

 

 

 

2-24 - Do not tin wires that are to be crimped to

solderless terminals or splices.

 

I found a source for the modules online - http://jacquesricher.com/NEETS/

 

 

Jerry Moore

AE4PB, K3S soon