Diode D5 on the KXV3 is one weak link. A more robust replacement
is available from Digikey for $0.42
https://marc.info/?l=elecraft&m=145323127930319&w=2
Dave Hachadorian, K6LL
Yuma, AZ
-----Original Message-----
From: brian
Sent: Friday, October 27, 2017 10:35 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Failing K3 at 3C0L
I'm going out on a limb. I've heard that some other DXpeditions
had K3
failures in the RX section. RX dead TX OK. Apparently, the
protection
circuitry was not enough in the close quarter multi-transmitter
operations. It would be nice to know the details or if this or
is just
rumor. If this is so what in the field fixes could be done?
Alternatively, what additional steps in such contemplated
operation
could be taken to further minimize such failures.
73 de Brian/K3KO
On 10/27/2017 17:02 PM, Merv Schweigert via Elecraft wrote:
Here is the latest from 3C0L guys, and an insight to the K3
failures,
lot of negative comments on some lists, this puts it in
perspective.
Regarding K3s - those who posted negative comments on
DX-Cluster about
failing K3s, please bear in mind the conditions they were being
operated
at 3C0 (jumping mains voltage 120-180 V). If you dare to test
transceiver,
or even better - two of them - of your beloved brand in similar
conditions
for about 12 days, then lets compare the results."
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