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Old 4th December 2009, 10:23 PM   #1
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Default njm2082d replacement

Today they have send me as a replacement of njm2082D op-amp for my pma1560 amp the LMT2904N.

Can i use this one without any problems.

I can`t found any datasheet on the internet.

Regards Rick
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Old 4th December 2009, 11:10 PM   #2
wahab is offline wahab  Algeria
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dual jfet opamp. i think the OPA2134 is a good replacement..
here a pdf..
Attached Files
File Type: pdf NJM2082.pdf (170.1 KB, 11 views)
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Old 4th December 2009, 11:14 PM   #3
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Hi WaHab, i`am searching for the datasheet of the LMT2904N

I think it`s a lm2904 but i don`t understand de LMT code.

So even i don`t now if the pinning is just right.

They have send me that one is a replacement .


Regards Rick...
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Old 4th December 2009, 11:29 PM   #4
wahab is offline wahab  Algeria
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oops...i don t know this one, there s a LM2904 , but it s a low
performance AOP...nothing to do with a NJM2082...

cheers,

wb
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Old 5th December 2009, 12:42 AM   #5
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mmmmmmm ok it looks like the T from LMT is from texas instruments, so i think they give me a bad replacement component.

Maybey there are some people who knows a litle more about this one in a denon amp, and de sound improvements of this thing.

regards Rick...
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Old 5th December 2009, 11:10 AM   #6
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Hi WaHab, after searching on the internet, there was no any datasheet about de lmt2904n, si i even think it`s a low performance lm2904
The T from LMT stay for texas instruments. So i will return this bad op-amps.

I listen to you and have deliver de opa2134pa as a better replacement of
NJM2082D. I hope this will sounds like a charm in this amp. Do you have experience with the opa2134pa or are there other people here on DiyAudio who know more about de quality of this op-amp.

Regards Rick...
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Old 5th December 2009, 12:58 PM   #7
wahab is offline wahab  Algeria
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Join Date: Nov 2009
Location: algeria/france
without seeing the part of the schematic that use this device, it s impossible
to be affirmative...but at first look, the OPA2134 is better than the NJM, at least
in the GB product, so assuming it s stable, it will surely give good, if not better, results...

regards,

wahab
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Old 5th December 2009, 01:25 PM   #8
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OK WaHab, thnks, i will make a new treat to ask it.

regards Rick
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