It's all exactly the same chip, just different brands, batches and date codes, there's no such thing as a JRC 3011 or 2002 that's just code markings in different places on the chips... 13600 is a 13600 is a 13600, they will all sound exactly the same. Now that we know the 136000 number IS the CHIP,...

deltafred wrote:No edit button!

Should have said

I read 3011 as a manufacturing date code - week 30 of 2011.

How can that be if these were made in the 80's?

It's all exactly the same chip, just different brands, batches and date codes, there's no such thing as a JRC 3011 or 2002 that's just code markings in different places on the chips... 13600 is a 13600 is a 13600, they will all sound exactly the same. Finally, an intelligent and accurate answer! I ...

mictester wrote:

Heypepe wrote:

grrrunge wrote:JRC 3011? it seems pretty odd to put one of those in a pedal, don't you think?
http://specsheets.jmcatalog.com/mesinc/oe/JRC-3011.asp

Not sure, but this doesn't look like cheese

Look at the other number on the chip - it's just a 13600!

I thought the CP 9's all had the 136000

tube-exorcist wrote:Ever heard of date-codes ?

Yes, so would that mean maybe...it was produced in 1983?

JRC 3011? it seems pretty odd to put one of those in a pedal, don't you think? http://specsheets.jmcatalog.com/mesinc/oe/JRC-3011.asp Not sure, but this doesn't look like cheese :roll: :ROFL I just couldn't help it... That link was my top hit on google for JRC 3011 :D I love it!! :applause:

JRC 3011? it seems pretty odd to put one of those in a pedal, don't you think? http://specsheets.jmcatalog.com/mesinc/oe/JRC-3011.asp Not sure, but this doesn't look like cheese :roll: https://i888.photobucket.com/albums/ac83/heypepe/IMG_1234.jpg https://i888.photobucket.com/albums/ac83/heypepe/IMG...

I have seen all 3 in different CP9s, surely someone knows. Are they from different years, did they run out of certain chips? Am I crazy?

Yes, I am a newbie in tone. I was wondering what is the difference between the IC's: LM13600N, 13600D JRC 2002, and the 13600D JRC 3011 in the Ibanez CP9 Compressor/Limiter? Are there any?