[sdiy] 3080 discrete clones

[David Ingebretsen]

https://www.rocelec.com/parts/results/all/?search_src=pn&s=3280&man=HAR

David 

>> -----Original Message-----
>> From: synth-diy-bounces at dropmix.xs4all.nl [mailto:synth-diy-
>> bounces at dropmix.xs4all.nl] On Behalf Of Dan Snazelle
>> Sent: Thursday, October 02, 2014 9:20 AM
>> To: Tom Farrand
>> Cc: sdiy
>> Subject: Re: [sdiy] 3080 discrete clones
>> 
>> Do you really think they might bring the 3280 out again that would be
>> amazing??
>> 
>> Sent from my iPhone
>> 
>> > On Oct 2, 2014, at 12:16 AM, "Tom Farrand" <mbedtom at gmail.com> wrote:
>> >
>> > Maybe someone found out about Rochester Electronics.  They own the
>> > masks and have the technology to make as many as you'd like to buy.  I
>> > think they have about 11,000 CA3080AE devices in stock (8-pin plastic
>> > package).  Why reinvent that which can simply be purchased?
>> >
>> > The other day I got a quote from Rochester at something like $4.53 in
>> > onesy-twosey quantities and <$3 in reasonable quantities.  They also
>> > have CA3280 for about $12 each but I think they are working on wafer
>> > stock.
>> >
>> > And Jameco has been selling CA3080s forever.  Now the website says
>> > "closeout" at $3.95 in small quantities.  The ones I got a very long
>> > time ago were house numbered but still the real deal.
>> >
>> > A group buy would probably bring the price down if there was demand.
>> > These days, 2164 chips are probably the better way to go unless
>> > looking specifically for reproducing "retro" circuits.
>> >
>> > Peace.
>> > Tom Farrand
>> >
>> >
>> >> On Wed, Oct 1, 2014 at 4:01 PM, Michael Zacherl <sdiy-
>> mz01 at blauwurf.info> wrote:
>> >> Hi, out of curiosity, what happened to this project?
>> >>  Michael.
>> >>
>> >>> On 5.Feb 2013, at 20:23 , ASSI <Stromeko at nexgo.de> wrote:
>> >>>
>> >>> Hi Synth-DIY,
>> >>>
>> >>> I've been contacted by a guy who intends to make 3080 replacements
>> >>> from discrete parts, ready-made on a small PCB the size of a DIP-8.
>> >>>
>> >>> He's got first prototypes finished and is asking for folks who would
>> >>> be willing to test them in their (preferrably filter) circuits.  The
>> >>> plan is he'll send you a bunch _for free_ and expects you to give
>> >>> him back a meaningful test report on what did or did not work and
>> >>> what the performance is relative to the real 3080s.  As he doesn't
>> >>> speak or write english, it would be preferred if you could
>> >>> communicate with him in german, but I'd be willing to translate for
>> >>> a handful of people.  If you are interested, please reply to me
>> >>> directly (not to the list) and indicate what you intend to test the
>> >>> parts with and when you'll be able to deliver your test report.  I'll
then relay
>> your requests and let you know whether you'll get parts and how
>> >>> to proceed further.   Thank you.
>> >>>
>> >>>
>> >>> Regards,
>> >>> Achim.
>> >>> --
>> >>> +<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk
>> Blofeld]>+
>> >>>
>> >>> DIY Stuff:
>> >>> http://Synth.Stromeko.net/DIY.html
>> >>>
>> >>> _______________________________________________
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>> >>
>> >>
>> >>
>> >> --
>> >> http://mz.klingt.org
>> >>
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