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Old 10th October 2019, 09:17 PM   #11
AndresTC is offline AndresTC  Spain
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I was thinking of replacing op amp 5532 with lm4562 ... I have enough to replace them all would it be possible?
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Old 10th October 2019, 09:21 PM   #12
FauxFrench is offline FauxFrench  France
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Location: The mountains, calm and quiet.
Seems fine as well.
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Old 10th October 2019, 09:43 PM   #13
AndresTC is offline AndresTC  Spain
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perfect for a while I wanted to use those operational amplifiers and didn't know what
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Old 11th October 2019, 09:12 AM   #14
AndresTC is offline AndresTC  Spain
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Did you mean the source that happened in the previous post or the change of opamps? hehe
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Old 11th October 2019, 11:20 AM   #15
FauxFrench is offline FauxFrench  France
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Location: The mountains, calm and quiet.
Both. LM4562 can generally replace NE5532. LM4562 only accepts +/-17V as supply. Use IC sockets when you remove the NE5532 (I now see that they are already in IC sockets). Removing all the NE5532 is quite a job. With LM4562, the total idle current should be around 250mA so the voltage regulators may be warm.

Last edited by FauxFrench; 11th October 2019 at 11:46 AM.
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Old 11th October 2019, 04:28 PM   #17
FauxFrench is offline FauxFrench  France
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Location: The mountains, calm and quiet.
Just to make sure that I understand you well: when you replaced the NE5532 with LM4562 in the electronic cross-overs you show, you got significant distortion?
LM4562 generally has wider operational limits than the NE5532 and personally my replacements never failed.
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Old 11th October 2019, 05:30 PM   #18
AndresTC is offline AndresTC  Spain
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that's right .. more distortion and noise and quite significant
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Old 11th October 2019, 05:59 PM   #19
FauxFrench is offline FauxFrench  France
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Location: The mountains, calm and quiet.
Andres, would you have an oscilloscope? There is a possibility that the LM4562s perform some self-oscillation. Noise and distortion are certainly not characteristics of the LM4562. Please also check the supply voltages.
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Old 11th October 2019, 06:15 PM   #20
AndresTC is offline AndresTC  Spain
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no I don't have unfortunately ... the fact is that with the 5532 it works perfect is strange..maybe they are false 5532 and the circuit is indicated for them I don't know
Thank you for all your answers.
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