[sdiy] Counterfeit chips

[bayne d'artagnan]

So I assume that he's the guy selling them in large quantity for about
$10 each? Interesting. Of course, even though they may work fine it
doesn't mean that they're not "counterfeit."  Does anyone know if he
claims that they're NOS or that they are newly manufactured?

I'm tempted to order some now just so I can compare them with some
genuine NOS parts.

This, of course, brings up other questions as well. What exactly
should we "be careful of" with other counterfeit chips? Are there
reports that these 3374s are unstable, or failing early?  Copyright
issues aside, I can see real problems with low quality power parts but
it seems to me that counterfeit synth parts might have desirable
qualities of their own.

On 11/14/07, Matthias.Herrmann at jeppesen.com
<Matthias.Herrmann at jeppesen.com> wrote:
> synth-diy-bounces at dropmix.xs4all.nl wrote on 11/14/2007 07:50:59 PM:
> > Hello,
> >
> > Not only CEMs ...
> >
> > The chineese mafia is still active on Ebay through Mr
> Hongkongsuperseller , a
> > big specialist who sale very bad quality parts ( switches , jacks,
> knobs)  and
> > fake chips like MN3007, CEMs SSM and many others ... Avoid this
> > seller absolutly
> > !!! How this guy can be a powerseller is a true mistery to me...
>
> two times i bought SSM2044 filter ICs from HKSS (30 pieces) and they all
> were fine. (just for the record)
>
> cheers,
> matthias
>
> ___
> www.modular.fonik.de
>
> >
> > Also take a lot of care when you purchase vintage chips from any
> 'unofficial'
> > sources, and specialy if they are at a very attractive cheap price ...
> >
> > Cheers,
> >
> > Marc B.
> >
> >
> >
> > Selon Tom Wiltshire <tom at electricdruid.net>:
> >
> > > Hello All,
> > >
> > > I recently received the following warning from someone who I'd
> > > contacted trying to get hold of old CEMs:
> > >
> > > > Please particularly be aware of a new batch of cem3374 counterfeits
> > > > that have just been coming out the last month.
> > > > Also, IR3R01, IR3R05, SN76477N.
> > > >
> > > > The cem3374 all (so far) appear to be date '93 which should be a
> > > > give away and have no part number.
> > > > The IR3R01 and IR3R05 can be distinguished because they do not have
> > > > a 'oval cut' shape to the face of the IC such as all of that series
> > > > had.
> > > > The SN76477N can be determined by a TI symbol embossed in the right
> > > > corner but no standard date code.
> > > >
> > > > So please take care and anytime feel free to enquire on items.  I
> > > > spend a lot of time and have people here dedicated to finding out
> > > > this information for this reason.
> > >
> > > I don't want to spread rumours, and obviously I have no other
> > > confirmation of this, but I'm bringing it to your attention. You
> > > choose how seriously you take it. It's wise to at least be aware.
> > >
> > > T.
> > >
> > >
> > > _______________________________________________
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> > >
> >
> >
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