[Elecraft] K3 power supply fuses

[Milverton M. Swire via Elecraft]

John, out of curiosity.What size wire you are using, and how long is the wire between the Radio and the Battery? 

PS:  Contrary to what some believe, the FUSE in a power cable is not there to protect the Radio. 
         But there to protect the " Power Cable " from starting a fire. 

((((73)))) Milverton / W9MMS

      From: J <tscm4u at gmail.com>
 To: "'John, 9H5G'" <kk4oyj at gmail.com>; elecraft at mailman.qth.net 
 Sent: Monday, March 16, 2015 3:16 PM
 Subject: Re: [Elecraft] K3 power supply fuses
   
You might closely examine the type of connections inside the holders.  Some
aftermarket automotive fuse holders have poorly crimped connections and
might pass a quick resistance check, but....

73,
Jay
W6CJ

-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of John,
9H5G
Sent: Monday, March 16, 2015 13:12
To: <elecraft at mailman.qth.net>
Subject: [Elecraft] K3 power supply fuses

My K3 is powered from a car battery as I am always /P. I have installed
fast-blow fuses rated at 25 A in each of the supply lines.

Operating at 80W RTTY this afternoon, I noted that I was getting a low
voltage warning before I would have expected it. On examining the power
cable, I found the fuse holders to be warm to the touch. I expect that is
what was causing the voltage drop.

However, may I ask what specific (make , model) of fuse holders are you
using to protect your k3?

73
John, KK4OYJ


______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html Message
delivered to tscm4u at gmail.com

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to tnnyswy at yahoo.com