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List:       elecraft
Subject:    [Elecraft] ok just ordered this and I should have it friday since they are 1 state away
From:       Edward R Cole <kl7uw () acsalaska ! net>
Date:       2013-07-31 17:41:44
Message-ID: 201307311742.r6VHg6pt076384 () denali ! acsalaska ! net
[Download RAW message or body]

Did you read the voltage spec on the listing?  This charger is rated 
for 19vdc at 3.95 a  Your KX3 is rated for 8-15vdc.
You should NEVER turn on the KX3 with this power source 
connected!  Otherwise it will be Bye-Bye KX3 and Bye-Bye waranty (I 
would guess).

Same CAUTION goes for using "wall wart" types of charger 
cubes.  Typically they rise very high in voltage unloaded.  Use a 
voltmeter to measure any power supply before connecting to an 
expensive piece of equipment (note if the voltage polarity is 
correct).  Experience of 45-years and a million miles of workbench 
riding!  DON'T ASSUME - Measure!

The MFJ charger that was cited sounds like a better-safer way to 
go.  If you need voltage about 14.2vdc to get good charging most of 
these have an internal voltage adjust pot.  Again measure it if you 
decide to "adjust"!

73, Ed - KL7UW
http://www.kl7uw.com
dubususa@gmail.com
"Kits made by KL7UW" 

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