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-   -   JRC opamps (http://www.diyaudio.com/forums/solid-state/48005-jrc-opamps.html)

browser 18th December 2004 05:57 PM

JRC opamps
 
I'm trying to get any info I can (datasheets would be appreciated) on the following JRC opamps:

JRC 4322
JRC4347

lineup 30th July 2008 04:31 AM

Re: JRC opamps
 
Quote:

Originally posted by browser
I'm trying to get any info I can (datasheets would be appreciated) on the following JRC opamps:
JRC 4322
JRC4347

The homepage is here:
http://www.njr.com/
Maybe you could Contact technical support to get some info.
(I did not find nothing about those 2 opamps, at internet)

If datasheet is not here, then it is probably lost in past history :(
http://www.datasheetarchive.com/



Lineup

browser 30th July 2008 08:56 AM

JRC opamps problem solved
 
Hi Lineup,

Thanks for the link to the NJM website. Actually, a friend recently explained to me that I made a mistake with the opamp numbers. The JRC 4322 and JRC 4347 do not exist. It turned out that the opamps were the JRC 4560 and JRC 4580. The reason for the mistake was that I thought it said 456D and 458D. Of course this is too short for a JRC/NJM opamp. (The letters were faded and hard to read). At the time I thought that 456D was the batch code, with 4322 and 4347 being the opamp numbers.

lineup 30th July 2008 08:58 AM

JRC4560 and JRC4580
are actually pretty good opamps

often used in audio circuits


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