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October 21, 2014, 10:46:56 PM
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DIYstompboxes.com  |  DIY Stompboxes  |  Building your own stompbox  |  LM4136? 0 Members and 1 Guest are viewing this topic. « previous next »
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Paul Marossy
Posts: 12527


Just Another Guitarhead


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LM4136?
« on: August 30, 2003, 05:31:33 PM »

What is it? A quad opamp or? Is there an equivalent chip for this? I couldn't find any technical data on it on the web and NTE electronics doesn't have it in their cross reference, either...
Can I get a little help here, please?!?  :lol:
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"Tone is in the fingers."
Dan N
Posts: 1076

Dan N


LM4136?
« Reply #1 on: August 30, 2003, 05:36:45 PM »

Punch RC4136 into google and there are some data sheets for this quad opamp.
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Paul Marossy
Posts: 12527


Just Another Guitarhead


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LM4136?
« Reply #2 on: August 30, 2003, 05:44:25 PM »

Thanks. So I could probably use a quad opamp that I have lying around.
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www.diyguitarist.com
www.soundcloud.com/Paul-Marossy

"Tone is in the fingers."
petemoore59
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For what?
« Reply #3 on: August 30, 2003, 05:59:46 PM »

I have a quad lying around also and have not an idea what to do with it.
   Not too bad a mistake at 1.39 @R.S....even better if I find a use for it.
  Something about intermodulations makes these quads less desirable for some usualuses I read.
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Paul Perry (Frostwave)
Posts: 7470

Paul P.


LM4136?
« Reply #4 on: August 31, 2003, 07:05:33 AM »

Looks good, lie a 741 but lower noise, wider voltage range, better behaved. BUT, wacky pinout!!
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Rodgre
Posts: 1097


Roger L.


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LM4136?
« Reply #5 on: August 31, 2003, 07:14:15 AM »

the 4136 was popular with Craig Anderton. It's used in the Electronic Projects for Musician's book.

Not as rare as a 4739, but not as common as a couple of 4558s....

Roger
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Paul Marossy
Posts: 12527


Just Another Guitarhead


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LM4136?
« Reply #6 on: August 31, 2003, 07:54:51 AM »

I have several TL084's, I figure I'd try one and see how it works.
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www.diyguitarist.com
www.soundcloud.com/Paul-Marossy

"Tone is in the fingers."
peterc
Posts: 25


LM4136?
« Reply #7 on: August 31, 2003, 08:22:34 AM »

The only sub for the 4136 is a TL075 which is very hard to find as well. You might have to do the "dead bug" replacement that RG has on his site.

www.geofex.com --> techtips --> 4739 and CLM6000

Peter
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peterc
Posts: 25


LM4136?
« Reply #8 on: August 31, 2003, 08:36:01 AM »

The only sub for the 4136 is a TL075 which is very hard to find as well. You might have to do the "dead bug" replacement that RG has on his site.

www.geofex.com --> techtips --> 4739 and CLM6000

Peter
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Paul Perry (Frostwave)
Posts: 7470

Paul P.


LM4136?
« Reply #9 on: September 01, 2003, 04:22:06 AM »

http://www.jdr.com
JDR microdevices has LM4136 under a buck, but I think the original poster might just have been wondering what to do with one? Anyway, if you need them, there they are!
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Paul Perry (Frostwave)
Posts: 7470

Paul P.


LM4136?
« Reply #10 on: September 01, 2003, 04:23:25 AM »

http://www.jdr.com
JDR microdevices has LM4136 under a buck, but I think the original poster might just have been wondering what to do with one? Anyway, if you need them, there they are!
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Mark Hammer
Posts: 22114


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LM4136?
« Reply #11 on: September 02, 2003, 07:38:01 AM »

The LM4136 (and I think other companies produce them as well) is nothing special, simply a quad op-amp with decent noise characteristics (though not exactly in the OP-275 or even NE5532 category).  As low noise stuff went in the late 70's it was probably the most convenient package, and certainly prived better - per op-amp - than anything in the same noise-spec class at that time.  You can see it compared to other op-amps in the article in one of the first few issues of DEVICE at my site (http://hammer.ampage.org).

As was pointed out, the TL075 will sub for it with respect to pinout, though the TL075 has a much higher input impedance.  As was also pointed out, the TL075 is especially hard to find.

Anyone designing a layout for a project using a 4136 should probably redesign it to use a more standard quad op-amp pinout such as used by the TL064/74/84, LM324, LM348, and numerous other quad packages that are still easy to find.
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Jay Doyle
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LM4136?
« Reply #12 on: September 02, 2003, 02:20:14 PM »

Without starting a "mojo"storm, the LM4136 is the quad version of the 4558.
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