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JRC datasheet, JRC pdf, JRC data sheet, datasheet, data sheet, pdf, New Japan Radio, = NJM / Dual Operational Amplifier. the end of the datasheet. Noninverting Amplifier Schematic. 1. An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes. [CAUTION]. The specifications on this databook are only given for information, without any guarantee as regards either mistakes or omissions. The application.

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Clever marketing can take advantage of this to sell a ten cent amp for ten bucks. Back when my vintage Rat II 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.

When you order these, you get parts that are labeled “JRC”. I replaced the two output resistors with carbon film resistors I had laying around, and I datwsheet order a couple of new RCP’s for 25 cents a piece.

Put a Datasheeet in there and be prepared for an overly bright and brittle sound. May 23, 4. Ben HarmlessJun 4, Yes, my password is: There is a post above that is proof positive of this.

And, of course, this is because datasheef all meet the same specifications. We have not lost technology over the years, datashwet we have with tubes, we have taken the same technology and made it cleaner in the case of silicon. So I don’t buy the Holy Grail theory.

May 23, 2. I’m just wondering where things currently stand. Some circuits sound better with inferior spec’ed chips. On the other hand, “better” and “vintage” aren’t necessarily the same thing, even though they get jumbled together in our sorry little heads.


Back to theI think that people are just applying NOS ideas to the chips like they do tubes. Does true “New Old Stock” matter? I didn’t overhear anything.

【JRC4558/4558D JRC】Electronic Components In Stock Suppliers in 2018【Price】【Datasheet PDF】USA

I think the high end stereo guys, in particular, have been suseptable to this sort of pseudo-scientific clap-trap. I put this in the same piles as some of the capacitor, resistor and conductor stuff floating around. They had nothing in common. I don’t think I went overboard with the cost on this one.

JRC Datasheet PDF –

We have all gotten used to that noise, so it sounds better. On the other hand, I also think we all at least I have personally tried some of the products on the idea of “if I can afford it, what can it jrc45588 There are millions of these vintage chips out there in old 70’s electronics junk.

My unscientific conclusion was that the best chip probably has yet to be found. Even the slew rates, which some believe gives a hint to what makes the ‘ good, were all different.

May 23, 1.

JRC4558 Dual Op Amp IC

It’s a little relieving to know that some of the opamp chip gurus were willing to let this out of the bag. Conversion to TS – this seems to be a perennial hot one. I know I read something recently about the that even when the TS was in original datashret, there was no single vendor.

May 24, 8.

JRC Datasheet PDF – Dual Operational Amplifier

Great points made, truly. I yanked it out and put it in my TS5. 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. Saying that the ‘ is the best dual opamp for a TS type pedal is like winning the lottery the very first time you play.


There were zillions of the real “JRC” made when it was current. The TL has a lot higher input impedance extremely higher actually. There is some confusion at present over what is a true or “vintage” JRC The clone had premium caps as well. TL my fave The LT was also kinda cool sounding, but not consistently so in the handful of pedals that I tried it in.

Both have the JRC You must log in or sign up to reply here. I have another clone of the same circuit that I paid significantly less for and it shows. As far as ‘s in general I will say this. I don’t think we’ll see a pedal guru doing any sort of semi-scientific chip preference test any time soon though I tested about 25 different chips back in ’99, in a few 9’s, a few 5’s, and a clone.

The old pedal was not superior to the new one in any way, in fact, it was inferior in ways. If you hear a difference then by all means go with what sounds best to you.

Are the misinformed still spending 30 bucks or more for a “NOS” chip, and 2 “brown sound” resistors? May 24,