By George, I found it! (was Re: [sdiy] What is this IC?)

[Scott Stites]

Hi Ken (and list),

Thanks for that information!  I'd always assumed that the LM3900 and CA3401
were pretty much interchangeable - I'm glad you pointed that out!   I've
noticed that the CA3401 was used in place of the 3900 on some of the old
vintage Serge stuff.

 I'm having trouble finding the data sheet for the CA3401 - does anybody
know where it may be hiding?

Oh, BTW, off the subject of this thread, but I've just been breadboarding
Ken's new Wave Folder - now *there's* a lot of bang for a *very* low parts
count!  Quite amazing.  Thanks for uncovering that gem, Ken!

Cheers,
Scott


----- Original Message -----
From: "Ken Stone" <sasami at hotkey.net.au>
To: "Scott Stites" <scottnoanh at peoplepc.com>
Cc: <synth-diy at dropmix.xs4all.nl>
Sent: Saturday, February 14, 2004 1:25 PM
Subject: Re: By George, I found it! (was Re: [sdiy] What is this IC?)


> Actually, they say it is a CA3401. A LM3900 can be used instead of a
CA3401
> with no issues, however, the reverse is not true, as the CA3401 does not
> have as high a voltage rating to start with. Check the Motorola datasheet
> for more info.
>
> Ken
>
>
> >I think I found it - I believe it's a Jameco part number, for the
recently
> >maligned LM3900, or a clone thereof.
> >
> >http://www.jameco.com/Jameco/Products/ProdCT/232Catalog/p072.pdf
> >
> >Now it all comes back to me - a long while back, I ordered 10 CA3046's,
got
> >these instead, and Jameco sent me the correct chips and told me not to
worry
> >about sending these back.  Does Harry work for Jameco, BTW? =-D
> >
> >So they can be used for synth stuff....  With those dual PNP's and these
> >chips, is there an ARP filter in my future?
> >
> >Cheers,
> >Scott
> >
> >
> >----- Original Message -----
> >From: "James Patchell" <patchell at cox.net>
> >To: "Scott Stites" <scottnoanh at peoplepc.com>; "Synth-Diy at Dropmix. Xs4all.
> >Nl" <synth-diy at dropmix.xs4all.nl>
> >Sent: Saturday, February 14, 2004 11:02 AM
> >Subject: Re: [sdiy] What is this IC?
> >
> >
> >> 221-235 sounds like an in-house part number.  The M8151 is probably a
date
> >> code (1981, 51st week).  Chances are slim for tracking down what they
are,
> >> hope you get lucky.
> >>
> >> At 11:32 AM 2/14/2004 -0800, Scott Stites wrote:
> >> >Hi,
> >> >
> >> >I'm hoping someone on the list can help me identify an IC - I have a
tube
> >of
> >> >ten of them, and I'd like to know if they would be useful in any synth
> >> >endeavours.
> >> >
> >> >They're 14 pin DIP's labeled '221-235'.  Beneath that, they have '014
> >> >M8151' printed on them.  There is no manufacturer identifier on them.
> >I've
> >> >googled and found nothing.  Does anybody know what these things might
be?
> >> >
> >> >Thanks,
> >> >Scott
> >>
> >>          -Jim
> >> ***************************************************
> >> I'm a man
> >> But I can change
> >> If I have to
> >> I guess.
> >>
> >> Man's Prayer
> >> Red Green
> >>
> >> ***************************************************
> >> http://www.oldcrows.net/~patchell
> >>
> >> http://members.cox.net/patchell
> >>
> >> ***************************************************
> >>
> >>
> >>
> >
> >
> _______________________________________________________________________
> Ken Stone   sasami at hotkey.net.au
> Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
> Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>
>
>