[Elecraft] K2 RF board X7-X11

[Don Wilhelm]

Conway,

Use a hot soldering iron - 800 deg F - to heat the crystal cases 
quickly.  Use a flat bladed screwdriver to form the ground leads up 
against the crystal case.  Then apply the soldering iron (out a bit of 
solder on the iron tip to aid heat transfer).  Hold the solder on the 
crystal can a bit away from the soldering iron tip, and as soon as the 
solder begins to melt, move the end of the solder over to the crystal 
case, soldering iron, ground wire junction - that adds a bit of flux to 
the combination.  Remove the heat and observe a nice smooth solder 
connection.

Important is to form the wire into contact with the crystal case before 
beginning the process - then adding the extra flux when the solder 
begins to flow.

73,
Don W3FPR

Conway Yee wrote:
> What is the best way to solder X7-X11 crystals?  The instructions say to
> solder two ground leads on the side.  The ground leads on the left are
> between the crystal and the resistor packs.
>
> I think I should solder the ground leads onto the crystals before
> soldering the leads onto the crystal case (at least on the left side if
> not both).
>
> Options?
>   
>