[sdiy] Faked uA726HC ?
Travis Shire
tshire at charter.net
Fri Mar 20 17:00:08 CET 2009
I suppose anything that sells for enough money can and *will* be faked by
these clowns in the orient. I had a batch of fake TO-3 pwr x-istors come my
way a little while back. Its getting so common I've become alot more
selective with vendors.
>
> I first got known to the 726 while repairing my Korg Trident,
> where it acts as a temperature controlled dual transistor,
> responsible for the keyboard scaling.
>
> I now have a tuning drift problem one of my Jupiter 4 voice boards,
> and as I have two spare uA726HC, I thought giving it a try and replacing
> it on the problematic board.
>
> Result - no voice !
>
>
> Question 1:
>
> So can I conclude that the uA726HC acts as an oscillator on the Jupiter 4,
> and does not have anything to do with tuning in that machine ?
>
>
> Question 2:
>
> Do I have FAKED uA726HC chips ???
>
>
> What do you think ?...
>
>
>
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