Re: looking for a chip

Good point!
Though nearly all the boards I've got with MB3712's or MB3713's on them
aren't heatsinked, it's often just poking straight out of the board.
Some of them have the part laying down on a heatsinked area, but I can't
remember one that actually had it bolted down or with heatsink paste.
Crappy bootleg boards mostly, lucky if the IC's are soldered in! :-)
If there is a heatsink area on the pcb it would be a good idea to get the same part
and lay it down right with a bolt and heatsink paste in place.

Cheers,
Marc

> Hi,
>
> How would you get it on the heat sink then?
>
> Thanks,
> Mark Capps
>
> Mark E Davidson wrote:
>
> > Thanks for all the replies! I found the chips at Consolidated at James
> > recommendation and ordered a dozen. Amusingly enough, The "backwards" MB3713 was
> > also in stock and 1/2 the price.
> >
> > -=Mark=-
> >
> > Marc Alexander wrote:
> >
> > > Don't know if it helps any...
> > > The MB3712 (commonly Fujitsu branded?) is a really common old audio amp used on
> > > many older arcade boards, and you can double your chances of finding one,
> > > as the MB3713 is absolutely identical but has the pinouts reversed,
> > > so if you can find an MB3713 just put it in the other way around...
> > >
> > > You can see the pinouts on many old schems, including page 8 of this one:
> > > http://www.spies.com/arcade/schematics/PDF/MoonCrestaSch.pdf
> > >
> > > Cheers,
> > >
> > > Marc

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Received on Sat Jul 21 01:30:33 2001