[sdiy] Panels, Transistor replacement for Oberheim Mini-sequencer

[James Patchell]

I just looked 2n4302 up in the Bible (Motorolla  Semiconductor Handbook, 
5th edtion), it is listed as an N-JFET, IDSS of 5mA, gate leakage 1nA, 30V 
breakdown...closest equiv is 2n5457....not much info, but maybe more than 
you had...I hope....

At 10:38 AM 4/14/2004 -0400, allenre at umich.edu wrote:
>I discovered both of those.  I don't want to pay $2 apiece from AMS 
>(especially
>since 5 are needed for the project), and like you I'm unsure about the J202.
>One problem is that I've been unable to locate a datasheet for the 2N4302.
>
>Ryan
>
> > Hi!
> >
> > Americanmicrosemi has the 2N4302 for slightly under $2 apiece.
> >
> > A search at Mouser for '2N4302' actually returns a choice between a 
> Fairchild
> > or Vishay J202 FET - I have *no* idea if that is a suitable 
> replacement, but
> > perhaps someone else on the list knows?  If so, that would be the way to go
> > (40 cents apiece for the J202).
> >
> > Cheers,
> > Scott
> >
> >
> > -----Original Message-----
> > From: allenre at umich.edu
> > Sent: Apr 13, 2004 2:04 PM
> > To: WeAreAs1 at aol.com
> > Cc: "synth-diy at dropmix.xs4all.nl" <synth-diy at dropmix.xs4all.nl>
> > Subject: Re: [sdiy] Panels, Transistor replacement for Oberheim
> > Mini-sequencer
> >
> > You're right, that was a typo.  But what I'm saying is the same.  I can't
> > find
> > that part cheap and I would like to find an alternative.
> >
> > Ryan
> >
> > > << Also, building the Oberheim mini-sequencer looks like an interesting
> > > project,
> > >
> > > but the 2N4032 transistor in it is obsolete.  What suitable replacements
> > are
> > >
> > > there for this part? >>
> > >
> > > I don't have the Mini-Sequencer schematic handy right now, but are 
> you sure
> >
> > > that it's a 2N4032?  Are you sure it's not 2N4302 FET?  That's a more
> > common
> > >
> > > part number, and is one that Oberheim used on several products.
> > >
> > > MJB
> > >
> > >
> >
> >
> >
> >
> > PeoplePC Online
> > A better way to Internet
> > http://www.peoplepc.com
> >

         -Jim
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