[Elecraft] K2/100 progress

[Tom Hammond NØSS]

Hi Chuck:

>Just finished the inventory on my K2/100 kit.
>I'm missing the 1 ft. of red # 20 stranded wire and have an ORG-ORG-BLK 5%
>1/4w resistor I can't find on the parts list.
>I don't have stranded wire in the junk bin so I'll call "Elecraft Central"
>for some on Monday.

Best move here!

>The manual suggests using an 800 degree tip. Why? I have one for my WTCPT
>soldering station, but the 700 degree did a fine job on my K2. Is there a
>specific reason to use 800 degrees? I think this was asked before, but I had
>a "senior moment" and can't remember the details.

The KPA100 has some rather large PC board lands to which you must solder PA 
transistor lands AND the bottom edges of the PC board 'ends' of T1 & T2. 
These require more heat than some irong can generate in a short period of 
time (e.g. you don't want to have to dwell on these large lands too long if 
you can help it). If you have a soldering gun (100W or more) with a 
somewhat small tip, that should work as well though will have to be careful 
to not 'cook' any adjacent components or wires.

If you happen to have a nice, fat, 700 deg. tip for your WTCPT, then USE IT 
when you have to work on the larger lands.

Additionally, some of the GND lands tend to sink away the heat pretty 
quickly... this would also be a good place to have a but more available 
'reserve' heat when soldering to them.

73,

Tom Hammond   N0SS