5532 replacement, ON SEMICONDUCTOR MC33072
Hi,
just have put together the parts list for the Elektor Line Preamp 2012 on the Farnell website.
For the 5532 op amp the ON Semiconductor MC33072 is listed as 'recommended' replacement.
(not 33078...)
On first glance: 1/2 the bandwidth, but higher slew rate.
http://www.farnell.com/datasheets/78609.pdf
Interesting operating voltages from +/-3 to 44V.
Any experiences, comments?
Price is about the same as the TI NE5532
Thanks a lot.
Thomas
Hi,
just have put together the parts list for the Elektor Line Preamp 2012 on the Farnell website.
For the 5532 op amp the ON Semiconductor MC33072 is listed as 'recommended' replacement.
(not 33078...)
On first glance: 1/2 the bandwidth, but higher slew rate.
http://www.farnell.com/datasheets/78609.pdf
Interesting operating voltages from +/-3 to 44V.
Any experiences, comments?
Price is about the same as the TI NE5532
Thanks a lot.
Thomas
Mentioned this before on other threads - I've found that the Pansonic SU series of bi-polar caps (available from Mouser) perform/sound very nice/ly.
Charles
Charles
@audiothomas
I wish I had the experience to answer your specific question.
For myself, I was able to obtain an ample supply of ONSemi 5532's for my build. But they were hard to find.
I look forward to your build. Please show your work.
I have been collecting the materials (piece by piece as my budget will allow) for my own build. I have enjoyed viewing other members work. It keeps me motivated toward my own build.
I wish I had the experience to answer your specific question.
For myself, I was able to obtain an ample supply of ONSemi 5532's for my build. But they were hard to find.
I look forward to your build. Please show your work.
I have been collecting the materials (piece by piece as my budget will allow) for my own build. I have enjoyed viewing other members work. It keeps me motivated toward my own build.
Hi,
took a closer look at the data.
Apparently this is a very noisy op amp.
The value for input noise voltage is 32 nv /root Hz.
A typo?
The 5532 has a value of 5 special low noise design even less. 5534 at 3,2.
The input current noise is low at 0,2 pA/root Hz, which is a pretty low value for a bipolar transistor based op amp.
Still far away from FET based op amps.
So, I stick with the 5532.
took a closer look at the data.
Apparently this is a very noisy op amp.
The value for input noise voltage is 32 nv /root Hz.
A typo?
The 5532 has a value of 5 special low noise design even less. 5534 at 3,2.
The input current noise is low at 0,2 pA/root Hz, which is a pretty low value for a bipolar transistor based op amp.
Still far away from FET based op amps.
So, I stick with the 5532.
Me too.
There is new info on 5532 noise in the Third edition of the book Self On Audio which will be out in a couple of weeks. There is much new stuff on various designs of mine.
Mouser stocks NE5532APs but why to use dual op-amps in DIY audio when even somewhat better single op-amps are available allowing for better channel separation. We are not running commercial operations which might require some cost cutting. Besides, costs of electronic components going into our equipment are marginal comparing to hardware costs and costs of PS in PAs.
cheers,
cheers,
If you use the 5534A single then you will get less noise, and in some places in the preamp it can be lightly compensated for more than unity gain which should give a linearity advantage.
The dual-package/crosstalk is not an issue because you would never run both channels through the same dual package unless you were looking for trouble. It's easy to assign the opamps so that the channels can be kept quite separate.
Once again, there is more on this in Self On Audio 3rd edition, which should be hitting the shelves just about now.
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Since Elector 2012 is not available anymore in EU, where can I find the schematic of this pre amp?
The original article (with schematics) and his preface comments are in his book "Self on Audio".
Think about it, you are asking someone to make a copyright infringement right in front of the author, so why would I be crazy enough to do that?
I am a Elektor green member, these articles are available on line, if you are a member. Yes that means spending some $. It is worth while imo and the only one I subscribe too.
I can even download the gerber files and get my own pcb's made. It seems only the
110650-1_vol_bal_bas_tre_v120 is available. Not sure why the phono amp is not available.
The use of our Gerber files is provided under a modified Creative Commons license. Creative Commons offers authors, scientists, educators and other creatives the freedom to handle their copyright in a more free way without losing their ownership.
So you have a free pcb with no schematic 🙂
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You are right. I am not interested in the pcb or the gerber. I just collect such schematics for analysis purposes.
Of course I am right.
You should collect information that is not copyrighted and not ask others to break the law for you just because you are to cheap to pay for it.
You should collect information that is not copyrighted and not ask others to break the law for you just because you are to cheap to pay for it.
Speaking for myself I have absolutely no objection to you supplying the schematics.
"fair use" in the US does seem likely to apply
the other way is for someone to redraw the schematic - or even post say a LTspice .asc
copyright only applies to mechanical/digital/print exact copies - not to the circuit topology, part values
the other way is for someone to redraw the schematic - or even post say a LTspice .asc
copyright only applies to mechanical/digital/print exact copies - not to the circuit topology, part values
Gee Doug,
I am not sure if your endorsement is permission. From what I am to understand the copyright belongs to Elektor magazine.
I have the var freq tone control done in ltspice, but I am not going to draw up the pre-amp schematic, thanks for the suggestion 🙂
I am not sure if your endorsement is permission. From what I am to understand the copyright belongs to Elektor magazine.
I have the var freq tone control done in ltspice, but I am not going to draw up the pre-amp schematic, thanks for the suggestion 🙂
relax
Gee, rsavas,
A good time to stop would have been with Doug's response. Gentleness goes a long way and talking about someone being "to cheap to pay for it" (sic) is tacky behavior.
Everyone, have a Merry Christmas and I am grateful for this very entertaining and educational website.
Gee, rsavas,
A good time to stop would have been with Doug's response. Gentleness goes a long way and talking about someone being "to cheap to pay for it" (sic) is tacky behavior.
Everyone, have a Merry Christmas and I am grateful for this very entertaining and educational website.
If Doug or anyone else wants to post the article that is up to themselves, they can deal with Elektor, if it comes to that.
I respect Elektor and will not break their copyright, since I have no permission from them. Others have their own opinions, I am stating mine.
Ask a moderator, Mooly for instance, to post the Elektor article, see what he has to say in the matter. Might be breaking a forum rule too, I'd have to check.
I respect Elektor and will not break their copyright, since I have no permission from them. Others have their own opinions, I am stating mine.
Ask a moderator, Mooly for instance, to post the Elektor article, see what he has to say in the matter. Might be breaking a forum rule too, I'd have to check.
I wouldn't even pretend to understand how the laws of copyright would work here, but if I was simply asked then I would say rsavas is correct.
What I do have is Elektor 2012 in front of me and it says:
...all drawings, text, articles etc are copyright Elektor and may not be reproduced in any form without written permission from Elektor...
So as to hosting/posting the circuit details here we would have to say no.
If Doug wished to host the schematics on his site and provide a freely available link then it would be fine to use that on the forum as it would be reasonably assumed that as the author, he had permission to host the material.
Hope that clarifies things.