For completeness and to close this thread, here is a portion of the
report on the repair of my KAT500 (now in motion and will be here Fri,
about 2.5 week turnaround). Mine is #257, one of the earliest (kit) made.
/*Repair report for KAT500 S/N 0257 RSA # */
*Reported problem(s):*
*
Arcing between green jumper wires damaged wires and adjacent PCB.
*Problem(s) found:*
*
The green wires were damaged as well as a trace on the PCB.
*Update(s) performed:*
*
Removed R63. Unused TX-inhibit.
*
Replaced Q1 & Q2. (Diode protected transistors for RS232 circuit.)
*
Installed zip ties on inductors L5-L8.
*
Replaced R17.
*
Moved the BB jumper to bottom of the PCB.
*Repair(s) performed:*
*
Replaced damaged jumpers and moved one (BB) to the bottom of the PCB.
*
Repaired damaged trace with a small jumper.
*
Replaced rubber feet on bottom of unit.
The invoice shows that I'm getting a KHAT (free) with one hour of shop
time and a nominal shipping fee billed (plus a second Aux cable so I can
extend to 6' making the shack more user friendly).
Well done Elecraft!
Rick wa6nhc
On 7/20/2018 8:30 AM, ab2tc wrote:
Hi again,
I forgot to mention that lots of other people, maybe most users, do use high
power and will be interested to know if there is an arcing risk in their
tuners, and what can be done about it.
AB2TC - Knut
ab2tc wrote
Hi Rick,
I am curious as to what mods you had performed:
"It is repaired, UPDATED with all current mods (including moving the wires
that
arced to a different configuration) and is undergoing rigorous testing."
I am running barefoot so arcing is not likely and I do not have any
immediate plans to get an amp, but I wasn't aware there were any mods done
to it.
AB2TC - Knut
<snip>
--
Sent from: http://elecraft.365791.n2.nabble.com/
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [email protected]
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [email protected]
