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
>
>
>
--
|