[sdiy] Interesting Pease column in ED issue 50-14 (July 8,2002)

jhaible jhaible at debitel.net
Sat Jul 13 02:29:55 CEST 2002


Could it be that he finally adressed my question about the resistor-biased
linearising circuit? It's been a few months since I heard via email
from him. And I get ED with several months delay in the office ...

JH.

-----Ursprüngliche Nachricht-----
Von: The Old Crow <oldcrow at oldcrows.net>
An: <synth-diy at dropmix.xs4all.nl>
Gesendet: Freitag, 12. Juli 2002 20:33
Betreff: [sdiy] Interesting Pease column in ED issue 50-14 (July 8,2002)


>
>   Wherein Bob laments about building an analog multipler with the
> "obsolete" LM13600, is told the LM13700 is still made by NatSemi, and
> proceeds to schem one up for the article (by drawing over top some
> appnote, heh heh).
>
>   I think I will write him and ask *why* the LM13600 is obsolete.  I won't
> let him get away with the answer "because we have the LM13700" because he
> thought it was obsolete too.  Obsolete, to me, means something is replaced
> by a better performing part.  What exactly is the better OTA that NatSemi
> offers that makes the LM13600/13700 'obsolete?'
>
>   Heh, I think I'll tell him that JRC and Philips/Signetics/whoever owns
> them now make the FRC13600, 13700 and NE5517... ;)
>
> Crow
> /**/
>
>





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