Datasheet for JRC2039G - the whole WWW doesn´t know ...

Groundloops · 17th February 2007, 05:55 PM

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?

djQUAN · 17th February 2007, 06:01 PM

I have an educated guess that it is a TL082 made by JRC.

TL082 is a general purpose JFET input dual OP amp.

KBK · 17th February 2007, 07:47 PM

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.

collumbo · 17th February 2007, 07:50 PM

i have googled and found:

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

maybe, more you will find by your google try.... ;-)

Groundloops · 17th February 2007, 08:41 PM

Errh ... Believe me, I´ve googled a lot, but only searched for 2039, not 082 ...

Thanks!

Netlist · 17th February 2007, 08:57 PM

Its a pity that many parts don't have the full designation branded. One would almost think they want to save some ink.

/Hugo

KISS · 18th February 2007, 05:46 AM

The 2039 is probably the date code. 39th week in 2000. G is probably a lot #.

jean-paul · 18th February 2007, 06:49 AM

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.

Geek · 18th February 2007, 06:50 AM

Better Realistic EQ's have the exact same chip. I can confirm it's a TL082.

jean-paul · 18th February 2007, 07:10 AM

That makes me wonder what opamp is in the less good Realistic EQ's ....

17th February 2007, 05:55 PM	#1
Groundloops I´m amazed! diyAudio Member Join Date: May 2004 Location: Hamburg / Northern Germany	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?

17th February 2007, 07:50 PM	#4
collumbo diyAudio Member Join Date: Feb 2007 Location: neustadt	googled...;-) i have googled and found: manufacturer is: jrc , org. part number: 082d maybe, more you will find by your google try.... ;-)

18th February 2007, 06:49 AM	#8
jean-paul diyAudio Moderator Emeritus Join Date: Sep 2002 Location: The Netherlands	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. __________________ It's only audio

18th February 2007, 07:10 AM	#10
jean-paul diyAudio Moderator Emeritus Join Date: Sep 2002 Location: The Netherlands	That makes me wonder what opamp is in the less good Realistic EQ's .... __________________ It's only audio

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17th February 2007, 06:01 PM	#2
djQUAN diyAudio Member Join Date: May 2004 Location: manila	I have an educated guess that it is a TL082 made by JRC. TL082 is a general purpose JFET input dual OP amp.

17th February 2007, 08:41 PM	#5
Groundloops I´m amazed! diyAudio Member Join Date: May 2004 Location: Hamburg / Northern Germany	Errh ... Believe me, I´ve googled a lot, but only searched for 2039, not 082 ... Thanks!

17th February 2007, 08:57 PM	#6
Netlist diyAudio Moderator Join Date: Jan 2003	Its a pity that many parts don't have the full designation branded. One would almost think they want to save some ink. /Hugo

18th February 2007, 05:46 AM	#7
KISS diyAudio Member Join Date: Jan 2007	The 2039 is probably the date code. 39th week in 2000. G is probably a lot #.

18th February 2007, 06:50 AM	#9
Geek diyAudio Member Join Date: Sep 2004	Better Realistic EQ's have the exact same chip. I can confirm it's a TL082.

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