Re: K2 PA Failure
Posted by
Mike Harris on
Feb 17, 2011; 12:25pm
URL: http://elecraft.85.s1.nabble.com/Down-conversion-tp5750644p6035676.html
You can't turn the K3 fully on with the PSU power switch otherwise
nearly everyone would be doing it all the time.
Regards,
Mike VP8NO
----- Original Message -----
From: "John Ragle" <
[hidden email]>
To: <
[hidden email]>
Sent: Thursday, February 17, 2011 5:14 AM
Subject: Re: [Elecraft] K2 PA Failure
> Am I missing something here? Seems to me that the rational thing
> to do
> is turn on the power supply and let it stabilize (should only take
> a
> second or two), then turn on the K2/K3? Turning a K2 or K3 on and
> off
> using the power supply switch never gives the firmware/software a
> chance
> to initialize or shut down...just like pulling the plug on your
> computer
> might well cause at least mild consternation to the machine! There
> are
> no enormous filter caps in either Kn machine that need to be
> serviced at
> power on. Seems to me that using a non-matched pair of transistors
> is
> much more likely to be the cause of failure, as someone has
> already
> pointed out.
>
> John Ragle -- W1ZI
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