USB Charger from KX3 Battery

[K9MA]

I'm planning to take the KX2 on a long trip, and it occurred to me that
it might be useful to be able to charge my phone from its battery.  I
just took apart a cheap automobile charger and wired a socket to its
input.  It works down to about 8 V.  You could build your own, but at $3
it's hard to beat.  If weight weren't an issue, you could just make an
adapter from the battery plug to a cigarette lighter socket.

If you really want to build your own, look at the data sheet for the
MC34063A.

73,

Scott K9MA

--
Scott  K9MA

[hidden email]

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[Don Sanders]

Lots of info on Google and Amazon has 5 pieces for about $6, free shipping

Dr. Don W4BWS

On Thu, Nov 30, 2017 at 12:24 PM, K9MA <[hidden email]> wrote:

> I'm planning to take the KX2 on a long trip, and it occurred to me that it
> might be useful to be able to charge my phone from its battery.  I just
> took apart a cheap automobile charger and wired a socket to its input.  It
> works down to about 8 V.  You could build your own, but at $3 it's hard to
> beat.  If weight weren't an issue, you could just make an adapter from the
> battery plug to a cigarette lighter socket.
>
> If you really want to build your own, look at the data sheet for the
> MC34063A.
>
> 73,
>
> Scott K9MA
>
> --
> Scott  K9MA
>
> [hidden email]
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

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