[Elecraft] Front end protection

[WILLIE BABER]

I replaced that diode in my K3 with instructions from an Elecraft technican-person. I also at the point purchased bandpass filters so that I didn't have to worry about that happening again.  

In fact, all repairs and some mods to my first and early K3 were done by me with Elecraft assistance until I sent the radio back to get the new synthesizers and repair a problem that turned out to be a nick on a trace that disabled the sensor for the PA fan....that problem must have happened when I moved and the radio got some rough handling. I didn't even notice the problem until I started using more than 50 watts output.

The replacement of the diode isn't difficult even if you didn't build your K3. My K3 was factory built.  The tech-guys that tell you exactly what to do is a novel approach to service that has worked well for me. 

73, Will, wj9b

CWops #1085
CWA Advisor levels II and III
http://cwops.org/

--------------------------------------------
On Tue, 2/21/17, W0MU Mike Fatchett <w0mu at w0mu.com> wrote:

 Subject: Re: [Elecraft] Front end protection
 To: elecraft at mailman.qth.net
 Date: Tuesday, February 21, 2017, 5:34 PM
 
 Most everyone missed the
 point.
 
 Why in the K3 is
 there not an easy way to replace the damaged protection 
 diode or any radio for that matter.  This
 would seem like a common 
 failure point for
 many people using 2nd rigs, dxpeditions, etc.  Maybe 
 it is not practical in the actual sense? I
 don't want to drag more stuff 
 around. 
 If would seem to me that providing a field replaceable item
 on 
 the radio would not be that difficult. 
 Maybe it is?
 
 W0MU
 
 
 
 On 2/21/2017 8:21 AM, W0MU Mike Fatchett
 wrote:
 > Why is it that no manufacturer
 has created a field replaceable front 
 >
 end protection scheme?  Many of us are using multiple
 radios or in 
 > Multiop situations. 
 Stuff happens.
 >
 > In
 the case of the K3, D25 which we think has gone bad for
 whatever 
 > reason in my radio is a
 surface mount diode that cost essentially 
 > nothing but is not easily replaced. 
 Why?  Is there no way to provide 
 > an
 easier user replaceable part or a cost effective protection
 circuit 
 > board that would be field
 replaceable?
 >
 >
 >
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