[sdiy] 3080 discrete clones

[pata at ieee.org]

Rochester makes legacy devices by their own fabrication line.
I'm selling Rochester brands CA3080AE.

2017/05/14 20:54、mskala at ansuz.sooke.bc.ca のメッセージ:

> Old thread, but:
> 
> On Sun, 14 May 2017, Michael Zacherl wrote:
>>>>>>>> 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
> 
> ...is it really true, or was it true in 2014, that Rochester "have the
> technology" to make more?  I thought Rochester's whole thing was that they
> hang onto stock after the original manufacturer stops, and that (per Don
> Tillman's exchange with Intersil support in 2005,
> http://www.till.com/blog/archives/2005/06/last_of_the_ota.html ) the fab
> for all "CA" chips was scrapped and nobody can make them anymore short of
> building a new fab with decades-old techology.  The masks are hardly the
> point - you can't just hand those masks to a modern fab, say "run off some
> more of these, please!" and get a chip that will work like the old ones
> did.  But if Rochester does have manufacturing capability for these old
> chips after all, it'd be a big deal because it would mean they could also
> make more of several other designs we think of as long-lost.
> 
> -- 
> Matthew Skala
> mskala at ansuz.sooke.bc.ca                 People before principles.
> http://ansuz.sooke.bc.ca/
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