[Elecraft] K1 build question

Wed Feb 27 10:49:12 2002

I have been using a deep-cycle marine battery exclusively for my power
supply for years.  I do have a DC power supply, but it failed just as soon
as the one year warranty was up, and the battery route has worked so well
that I haven't bothered to try to fix the power supply.

Originally, I used an old car battery, but I didn't keep it charged well
enough.  Then I was able to get my hands on an old deep-cycle battery (for
free!) that I used for several years.  Finally, a few months ago I wore that
battery out, and another free one wasn't readily available, so I bit the
bullet and bought a new, heavy duty, marine deep cycle battery to use.
There's no doubt that having a DC power supply would be a bit more
convenient, but I wouldn't exchange the flexibility that I have for
anything.

I should note that prior to this year, I was powering an old Kenwood TS-130s
that drew quite a bit of power.  I was able to get about 3-4 hours of
effective power from the battery using the TS-130s.  Now, with the K1, this
battery is far more that I really need - I'm only having to put the charger
on the battery once a week or so instead of every day.

So, my short answer is:  If you have access to a good battery, have the
resources to easily keep it charged without having to worry about gasses,
leaks, etc., then go the battery route.

For the record, I do plan on building a power supply (40-amp switcher out of
the ARRL hand book) for the experience and education, but I won't spend the
money on buying one.

- Thor, N9IK

> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of Charles L. Gardner,
> Jr.
> Sent: Tuesday, February 26, 2002 5:57 PM
> To: [email protected]; [email protected]
> Subject: [Elecraft] K1 build question
>
>
> I am to the point in building my K1-4 (#1074) where I need 12 to 14V DC
> (p. 30 of Owner's Manual Revision E). I am asking for suggestions as to
> whether I should purchase a DC Power Supply (expensive) or should I use
> a battery with appropriate Power supply cable. This is my first kit in
> 30 years. I assume that I will succeed and go on to build a K2.
>
> Many thanks for any suggestions.
>
> 73 Charlie Gardner  WA4HKN
> Lexington, KY
> K1-4  #1074
>
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