[sdiy] Filters, LM13600 etc.

[James Patchell]

Opps....seem I am mistaken about RCA not making an LM13600....

At 08:12 AM 1/3/2004 -0800, James Patchell wrote:
>RCA did not make the LM13600, that was national semiconductor.  RCA made 
>the CA3280 (which is not compatible with the LM13600/13700).
>
>The NE5517 was the signetics part (now called Phillips).
>
>I am not too sure who used the SG prefix.
>
>At 05:26 AM 1/3/2004 +0100, Karl Dalen wrote:
>>  --- Ray Wilson <raywilson at comcast.net> skrev: > LM13700s and LM13600 are
>>still pretty much a standard item. Try the
>> > suppliers on my pages:
>>
>>I remember that i saw the 13600 in an ad from RCA from the mid seventies!
>>Anyway it seams that many manufacturers did their copy of the chip.
>>I have in my box here XR13600,LM13600/13700,NJM13600,NE5517,
>>CA13600, SG13600, could that be Signetics? Huh!!
>>
>>KD
>>
>> > From: "David Reichert" <dreichert at sympatico.ca>
>>
>> > > Ray,
>> > >
>> > > I'd like to build a circuit something like this but I'm finding the
>> > > LM13700s hard to source. Do you perhaps know of a reliable source?
>> > >
>> > > Would I be correct in assuming that replacing these ICs with CA3080s
>> > and
>> > > using simple Op-Amp buffers would be a futile idea?
>> > >
>> > > Thanks,
>> > > Dave
>>
>>
>>Höstrusk och grå moln - köp en resa till solen på Yahoo! Resor på 
>>adressen http://se.docs.yahoo.com/travel/index.html
>
>         -Jim
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         -Jim
***************************************************
I'm a man
But I can change
If I have to
I guess.

Man's Prayer
Red Green

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