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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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May 23, 2. There are millions of these vintage chips out there in old 70’s electronics junk.

JRC Datasheet PDF – Dual Operational Amplifier

Sorry to kick over any sacred cows but this is just my opinion based on my experience. This is where the rec. I attribute the superior tone to the builder of the box.

May 23, 4. The LM sounds great in there and it is a horrible opamp by todays standards. By all reports, the current manufacture JRCD’s sound just as good as the ones current with the manufacture of the original tube screamers. No, create an account now.

Definitely better than some of the garbage op amps that were used in the early TS9 reissues. On the other hand, “better” datasheer “vintage” aren’t necessarily the same thing, even though they get jumbled together in our sorry little heads. And, of course, this is because they dagasheet meet the same specifications. Conversion to TS – this seems to be a perennial hot one. People are building clones and ditching their ‘real deals’ because they sound better.


Are the misinformed still spending 30 bucks or more for a “NOS” chip, and 2 “brown sound” resistors? Ben HarmlessJun 4, And is anyone aware that the TS7 has the “correct” chip and output resistor values?

The TL has a lot higher input impedance extremely higher datashest. It’s a little relieving to know that some of the opamp chip gurus were willing to let this out of the bag.

JRC4558 Datasheet

Does true “New Old Stock” matter? Several electronics suppliers list the Jrrc4558 TL my fave The LT was also kinda cool sounding, but not consistently so in the handful of pedals that I tried it in. If you want “vintage Tube Screamer” then this is the best choice probably. We have all gotten used to that noise, so it sounds better.

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

There are jrc44558 factors like the slew rate that may contribute as well, but to me the input impedance difference is the biggie. 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 hurt?


I liked the 3 listed above enough to ‘splurge’ and order about 15 of each. Some circuits sound better with inferior spec’ed chips. Early TS’s have the Ibanez R “trademark” logo which some people seek. The in a Tube Screamer does have a sound that is good and is what a lot of people find to their liking.

The reason a carbon comp resistor sounds “better” than a film resistor is the additional noise it adds to the circuit. I don’t think I went overboard with the cost on this one. May 24, They had nothing in common. Both have the Jgc4558 I yanked it out and put it in my TS5. The clone had premium caps as well.

However, I think the nature of how silicon works vs. I put this in the same piles as some of the capacitor, resistor and conductor stuff floating around.

Remove the compensation cap and put a TL in there with the jrd4558 of the circuit unmodded and it sounds awful.