[sdiy] 3080 discrete clones

Dan Snazelle subjectivity at hotmail.com
Fri Oct 3 14:11:03 CEST 2014


Thanks


So that would mean they aren't making them again ;) 



Sent from my iPhone

> On Oct 2, 2014, at 11:28 AM, "David Ingebretsen" <dingebre at 3dphysics.net> wrote:
> 
> 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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>>>>>> Synth-diy at dropmix.xs4all.nl
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>>>>> 
>>>>> 
>>>>> 
>>>>> --
>>>>> http://mz.klingt.org
>>>>> 
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> 



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