JRC 4558 DATASHEET PDF

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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The old pedal was not superior to the new one in any way, in fact, it was inferior in ways. You must log in or sign up to reply here.

JRC4558 myths…

This is where the rec. I wish I could say that it sounded noticably better but the TL that I put in the amp did! Remove the compensation cap and put a TL in there with the rest of the circuit unmodded and it sounds awful. As far as ‘s in general I will say this.

Some circuits sound better with inferior spec’ed chips. Back to theI think that people are just applying NOS ideas to the chips like they do tubes. Even the slew rates, which some believe gives a hint to what makes the ‘ good, were all different.

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However, I think the nature of how silicon works vs. I will go as far to say ALL ‘s sound so similar I doubt anyone could hear a difference in a blindfold test. They were consistently good.

JRC myths | Telecaster Guitar Forum

Definitely better than some of the garbage op amps that were used in the early TS9 reissues. Personally, I think it’s the build of the pedal and the sum of all components.

What have y’all overheard at the musician’s watercooler discussions? There are probably 3 that most guitarists would agree sound ‘bad. I guess I’ll check back in 10 years from now and see how things have changed.

Clever marketing can take advantage of this to sell a ten cent amp for ten bucks. There are other factors like the slew rate that may contribute as well, but to me the input impedance difference is the biggie.

If you want “vintage Tube Screamer” then this is the best choice probably. May 23, 1. Your name or email address: It’s a little relieving to know that some of the opamp chip gurus were willing to let this out of the bag. All of the ‘ variants sounded datasheey similar and ‘good’. Are the misinformed still spending 30 bucks or more for a “NOS” chip, and 2 “brown sound” resistors?

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If you’re doing this to a TS 10, short out the 1K resistor leading to pin 3 of the dual opamp as well. There were zillions of the jc “JRC” made when it was current. May 24, 6. Great points made, truly. May 24, 5. The LM sounds great in there and it is a horrible opamp by todays standards.

JRC D – PDF Datasheet – General Purpose Amplifiers In Stock |

Put a TL in there and be prepared for an overly bright and brittle sound. Several electronics suppliers list the JRC If you hear a difference then by all means go with what sounds best to you. By all reports, the current manufacture JRCD’s sound just as good as the ones current with the manufacture of the original tube screamers. Do you already have an account?