GR1225 rib boxes

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w7nik
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Joined: Mon Aug 18, 2008 9:30 pm

GR1225 rib boxes

Post by w7nik »

Has anyone programed a gr 1225 or a maxtrac with the ribless wire harness set up?
I have win98 with version 3.1 RSS works great 400mhz laptop. The regulator did not have enough amps or the power plug shorted
I have a rib that the power regulator went bad model 84d82775r01. That is the model number of the rib box , built in jun 15 1988.

The regulator numbers are TSC 766oija 8738 at U2 , I can't find nothing on line .
U3 is rca 745 45a01.

It might be easier to purchase a new rib than looking for IC chips.
Any help would be great thank
w7nik
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fail999
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Joined: Wed Sep 05, 2001 4:00 pm
What radios do you own?: APX7K, XTS, XTL and on and on

Re: GR1225 rib boxes

Post by fail999 »

The 7660 is a very common IC. It is negative charge pump. Input is positive and output is negative. If you search Mouser for a 7660 IC you should find it right away.

fail999
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Cowboy
Posts: 290
Joined: Fri May 21, 2004 7:09 pm

Re: GR1225 rib boxes

Post by Cowboy »

fail999 wrote:The 7660 is a very common IC. It is negative charge pump. Input is positive and output is negative. If you search Mouser for a 7660 IC you should find it right away.

fail999
Mouser search for 7660

http://www.mouser.com/Search/Refine.asp ... _Wildcards

http://www.mouser.com/Search/ProductDet ... IXIA%3d%3d

About $1.25 each...
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