Very good, well, I'll give it a try. Actually, I think the cigarette
lighter plug part I mentioned from DigiKey has a built-in fuse - just
as you wisely recommended!
I hope to leave the SD running at sunset on a Sage Grouse lek next
March so I can catch the predawn show without marching out and
scattering all the performers in the early morning hours.
Kevin
On Nov 20, 2009, at 7:25 PM, Rob Danielson wrote:
> At 6:55 PM -0700 11/20/09, Kevin Colver wrote:
> >Greg and Aaron,
> >That's good to know this has worked for you. So you didn't need
> >anything more than the Hirose connector wired to the battery through
> >whatever connection is convenient to the battery system? Is the SD
> >rugged enough to tolerate voltage variation in the battery array? I
> >was thinking it might be good to snap on an RF choke on the power
> cord
> >near the SD end? ($2.99 at Radio Shack)
> >
> >Well, I'm neither a skilled solderer nor gifted with great eyesight
> >but I might give it a try. It looks like the parts cost less than
> >$20, battery not included. It looks like all I have to do is solder
> >the Hirose to the power cord and plug the other end (cigarette
> lighter
> >plug) into the battery? (pins 1,2 DC power, pins 3,4 ground)
>
> Nope. Wire it either:
>
> pin-1 to negative (-)
> pin-4 to positive (+)
>
> OR
>
> pin-2 to negative (-)
> pin-3 to positive (+)
>
> I think there's evidence that using #2 and #3 and keeping the
> internal battery fully charged right up to the time of switch-over
> and is less problematic (long story). Rob D.
>
> =3D =3D =3D
>
> >
> >Thanks,
> >
> >Kevin
> >
> >www.7Loons.net
> >
> >On Nov 20, 2009, at 4:14 PM, gt wrote:
> >
> >> Hi Kevin,
> >> I have a few EcoCharge motorcycle type lead acid sealed batteries
> >> that I can connect parallel to allow greater record times on my
> >> 744t. Unfortunately EcoCharge is not longer in business, I change
> >> out the 12v battery portion of the system every few years. I made
> an
> >> XLR-4 pin to Hirose cable (and a backup) myself.
> >>
> >> If you are a skilled solderer with good eyesight the Hirose
> >> connector should be no problem however the connector is very small,
> >> the solder cups are very (very) small and it takes a little bit of
> >> patience to solder the thing (and find the correct size cable). The
> >> current SD manual has pinout information.
> >>
> >> --greg weddig
> >> Paradise, CA
> >> http://gregweddig.net
> >>
> >> --- In "kjcolver" <>
> >> wrote:
> >> >
> >> > Greetings All,
> >> > I'd like to leave my SD 722 on and recording for 12-24 hour
> >> periods. Any suggestions on how to power the SD 722 for that long?
> >> >
> >> > Sound Devices say that they don't make a 12 volt DC connector for
> >> the recorder. Would it work safely to purchase the Hirose connector
> >> ( Digikey.com part number HR1558-ND ) and wire it directly to a
> >> cigarette lighter power adaptor ( DigiKey part number ZA5077-ND )?
> >> > Thanks,
> >> > Kevin
> >> > www.7Loons.com
> >> >
> >>
> >>
> >>
> >
> >
> >
> >
> >
> >
> >------------------------------------
> >
> >"While a picture is worth a thousand words, a
> >sound is worth a thousand pictures." R. Murray Schafer via Bernie
> Krause
> >Yahoo! Groups Links
> >
> >
> >
>
> --
>
>
>
>
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