[sdiy] 3080 discrete clones

Dan Snazelle subjectivity at hotmail.com
Thu Oct 2 17:20:11 CEST 2014


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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