Datasheet for JRC2039G - the whole WWW doesn´t know ... - diyAudio
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Old 17th February 2007, 05:55 PM   #1
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Question Datasheet for JRC2039G - the whole WWW doesn´t know ...

Peeking into my Vincent SA-31 Peamp I found an opamp labeled JRC2029G. Searched the web, searched at NJR, also searched for NJM2039G, no match at all.

Maybe someone knows?

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Old 17th February 2007, 06:01 PM   #2
djQUAN is offline djQUAN  Philippines
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I have an educated guess that it is a TL082 made by JRC.

TL082 is a general purpose JFET input dual OP amp.
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Old 17th February 2007, 07:47 PM   #3
KBK is offline KBK  Canada
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Quote:
Originally posted by djQUAN
I have an educated guess that it is a TL082 made by JRC.

TL082 is a general purpose JFET input dual OP amp.

I agree. JRC always chops off the first letters or numbers in a given opamp design they copy or licence.

If the vincent unit has a phono section, this is likely where the TL072 is. Or a line buffer for tape out.
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Old 17th February 2007, 07:50 PM   #4
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Default googled...;-)

i have googled and found:

manufacturer is: jrc ,
org. part number: 082d


maybe, more you will find by your google try.... ;-)
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Old 17th February 2007, 08:41 PM   #5
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Errh ... Believe me, I´ve googled a lot, but only searched for 2039, not 082 ...

Thanks!
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Old 17th February 2007, 08:57 PM   #6
Netlist is offline Netlist  Belgium
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Its a pity that many parts don't have the full designation branded. One would almost think they want to save some ink.

/Hugo
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Old 18th February 2007, 05:46 AM   #7
KISS is offline KISS  United States
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The 2039 is probably the date code. 39th week in 2000. G is probably a lot #.
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Old 18th February 2007, 06:49 AM   #8
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Don't bother finding the datasheet and replace it for LM4562 straightaway. If you do, please use a small cap right across the + and - supplypins as with all high BW opamps.
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Old 18th February 2007, 06:50 AM   #9
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Better Realistic EQ's have the exact same chip. I can confirm it's a TL082.
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Old 18th February 2007, 07:10 AM   #10
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That makes me wonder what opamp is in the less good Realistic EQ's ....
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