[sdiy] NE570 source in the US?

Michael E Caloroso mec.forumreader at gmail.com
Sat Mar 25 17:31:31 CET 2023


The 57x compandors have not been available in DIP for a long time.

Mouser lists the part as "not available" which means obsolete no longer
made.  If it were listed as "out of stock", there would be an entry for
quantity and a note with lead time.

MC

On Fri, Mar 24, 2023 at 10:40 AM Benjamin Tremblay via Synth-diy <
synth-diy at synth-diy.org> wrote:

> Found these application notes, much like the ones stapled to my compander
> ICs I bought at Radio Shack.
> https://www.experimentalistsanonymous.com/diy/Datasheets/SA571%20AN.pdf
>
>
> On Mar 24, 2023, at 10:24 AM, Oren Leavitt via Synth-diy <
> synth-diy at synth-diy.org> wrote:
>
> I built a PAiA 6710 vocoder back in the day. Clever minimal design that
> used four NE570s
>
>
> On 3/24/23 8:48 AM, Benjamin Tremblay via Synth-diy wrote:
>
> Oooh yes.
> https://synthcube.com/cart/rozendal-570-galore?search=570&description=true
>
> Huh. I see clones of the 571 here!
> https://cabintechglobal.com/semi
>
>
> On Mar 24, 2023, at 9:44 AM, Sean Ellis <tensiontype at hotmail.com> wrote:
>
> I'd like to build one if these, it really gets a lot out of the IC:
> https://modularaddict.com/module-type/waveshaper/570-galore-dynamics-processor-pcb-panel-timo-rozendal
>
> <https://modularaddict.com/module-type/waveshaper/570-galore-dynamics-processor-pcb-panel-timo-rozendal>
> 570 Galore - Dynamics Processor PCB/Panel | Timo Rozendal
> <https://modularaddict.com/module-type/waveshaper/570-galore-dynamics-processor-pcb-panel-timo-rozendal>
> The 570 Gallore circuit was put together via Timo Rozendal with heavy
> influence from Thomas Henry's circuit literature.This is for a PCB/Panel in
> Eurorack Format
> modularaddict.com
>
>
> ------------------------------
> *From:* Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of Benjamin
> Tremblay via Synth-diy <synth-diy at synth-diy.org>
> *Sent:* Friday, 24 March 2023 2:23 PM
> *To:* David Moylan <dave at expeditionelectronics.com>
> *Cc:* Synth-diy at synth-diy.org <Synth-diy at synth-diy.org>
> *Subject:* Re: [sdiy] NE570 source in the US?
>
> I have a couple of 570s I ordered in 2016 and forgot about. Is there
> simple circuit schematic I can follow to stand them up for experiments? I
> remember fiddling with one in the 80s to make a noise gate for my Radio
> Shack bbd board.
>
> Benjamin Tremblay
>
> > On Mar 24, 2023, at 9:13 AM, David Moylan via Synth-diy <
> synth-diy at synth-diy.org> wrote:
> >
> > Isn't the 571 going away too?  They're out at Mouser.  Digikey still
> has stock, and that's only in surface mount.
> >
> >
> >> On 3/24/23 1:30 AM, Nathan Trites wrote:
> >> Does anyone know where I can buy 4 or so NE570 Compander ICs in the US?
> I know I can use 571 but figured I'd pick up a few if I could.
> Smallbear/Synthcube is out, Banzai has them but don't want them enough for
> international shipping.
> >>
> >> Thanks,
> >>
> >> Nathan
> >>
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> >
> > --
> > David Moylan
> > Expedition Electronics
> > sonic adventures!
> >
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