The JRC integrated circuit by Japan Radio Company is a dual high gain operational amplifier internally compensated and constructed on a single silicon . JRC datasheet, JRC pdf, JRC data sheet, datasheet, data sheet, pdf, New Japan Radio, = NJM / Dual Operational Amplifier. jrc Datasheet PDF Download – Dual Operational Amplifier, jrc data sheet.

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Several electronics suppliers list the JRC Back to theI think that people are just applying NOS ideas to the chips like they do tubes.

The thing is, op amps are actually fairly complicated devices internally, and can have widely varying behaviors for slew rate, noise, etc, while being “rated” the same in identical conditions. On the other hand, “better” and “vintage” aren’t necessarily the same thing, even though they get jumbled together in our dataheet little heads.

They are still available in isolated caches of parts, although they can sometimes be hard to find. May 24, 6. May 23, 2. Your name or email address: As far as ‘s in general I will say this.

JRC4558 myths…

However, I think the nature dxtasheet how silicon works vs. They were consistently good. Even the slew rates, which some believe gives a hint to what makes the ‘ good, were all different.

There is a post above that is proof positive of this. This is where the rec. Does true “New Old Stock” matter? The old pedal was not superior to the new one in any way, in fact, it was inferior in ways. What we could all really wish for is that large-scale pedal manufacturers would actually do LISTENING tests on these “identical” parts, rather than just buying whatever is cheapest at the moment.


I put jrf in the same piles as some of the capacitor, resistor and conductor stuff floating around. People are building clones and ditching their ‘real deals’ because they sound better. Saying datzsheet the ‘ is the best dual opamp for a TS type pedal is like winning the lottery the very first time you play.

JRC Datasheet PDF – Dual Operational Amplifier

May 24, 5. Sorry to datasheeet over any sacred cows but this is just my opinion based on my experience. Robbie WMay 24, TL my fave The LT was also kinda cool sounding, but not consistently so in the handful of pedals that I tried it in.

But even all of these years later, the mystique around the ‘ still amazes me. I don’t think I went overboard with the cost on this one.

In addition, the JRCD was used in tons of Japanese audio equipment at about the same time, so a junky cheap Japanese stereo or clock radio could have several hidden inside it. It’s a little relieving adtasheet know that some of the opamp chip gurus were willing to let this out of the bag. I’m just wondering where things currently stand.


JRC Datasheet pdf – = NJM / Dual Operational Amplifier – New Japan Radio

No, create an account now. I sent Analogman my TS-9 several years ago and had him replace the chip and beef up some weak spots with no other mods and it came back as he described: Early TS’s have the Ibanez R “trademark” logo which some people seek.

May 24, 8. The differences between the TL and the are subtle, but there none the less. Back when my vintage Rat Jrrc died and I needed a replacement, I was kind of shocked just how inferior the current production Rats are – and the only substantial difference is the op amp.

May 23, 3. Ben HarmlessJun 4, Are the misinformed still dtaasheet 30 bucks or more for a “NOS” chip, and 2 “brown sound” resistors? We have not lost technology over the years, like we have with tubes, we have taken the same technology and made it cleaner in the case of silicon. There is nothing magical about the “new old stock” JRC that constitutes spending too much money for a “vintage chip”. Do you already have an account?

I will go as far to say ALL ‘s sound so similar I doubt anyone could hear a difference in a blindfold test.

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