Clark,
It is good to hear that your KX1 is up and running again.
"Lord willin' and if the creek don't rise", I will be at FDIM again this
year. Hoping to see you there.
Your power output with that supply voltage is not unexpected.
Yes, you could install the KX1 power mod to your KX1. If you always
operate with the battery, that would be an OK thing to do, but if you
also operate with a higher voltage supply, reduce the power to less than
5 watts with the variable R4 pot (its adjustment slot is reachable
through the hole in the bottom cover and in the KXAT1).
The technique for removing components from the board without
professional grade desoldering tools is to clip the leads or crush the
component (leaving enough lead to grasp with pliers) and removing the
leads one at a time. Clean up with solder wick, and if there is still
solder in the hole, heat the solder pad and insert a wooden toothpick or
stainless steel needle into the hole to clear the solder.
73,
Don W3FPR
PS: "if the creek don't rise" is indeed a valid consideration here - our
driveway passes over a creek, and in a heavy rain, it has been known to
overflow the driveway - it has only happened 4 times in the past 14
years we have been here, but who knows when the next very heavy rain
will occur.
On 3/26/2015 8:17 PM, engineercm wrote:
Hi, Don.
You may recall a couple of months ago I killed my KX1 by dropping a hot
lead on the bare board. You suggested replacing the MPU and the first mixer
NE602. I'm happy to report the rig has been resurrected and is working
fine. Removing and cleaning the solder pads for the NE602 was not easy. I
have not yet mastered the art of using soldering wick to remove solder from
inside the hole.
I'm getting 2.8w on 20//30/40 with 12.5 volt battery. I have the 30m
option, not the 3080 option. Would the Power Option swap of two resistors
be recommended for the 30m board? I'm really not that excited about
removing any more parts and cleaning soldering holes! If I got .5w, it
hardly seems worth it.
I'm going to FDIM this year and hope to celebrate the 4 days in may
anniversary. Hope to see you there.
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