Texas Instruments P Operational Amplifiers – Op Amps are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for Texas. P Semiconductors are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for P Semiconductors. Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current.

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When you order these, you get parts that are labeled “JRC”. It’s a little relieving to know that some of the opamp chip gurus were willing to let this out of the bag. That’s one o’ them boxes what makes yer amp sound real loud innit?

4558P Datasheet

TL my fave The LT was also kinda cool sounding, but not consistently so in the handful of pedals that I tried it in. Your name or email address: However, the odds that they’ll hear a difference are very good, and if there’s an audible difference, multiple listeners will have consistent preferences.


May 24, 7. I started researching TS’s quite a long time ago. Clever marketing datzsheet take advantage of this to sell a ten datadheet amp for ten bucks. As far as ‘s in general I will say this.

P Datasheet catalog

They had nothing in common. There is some confusion at present over what is a true or “vintage” JRC So I don’t buy the Holy Grail theory. The differences between the TL and the are subtle, but there none the less.

Early TS’s have the Ibanez R “trademark” logo which some people seek. I don’t think I went overboard with the cost on this one. 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: There are probably 3 that most guitarists would agree sound ‘bad.

I have another clone of the same circuit that I paid significantly less for and it shows. Back to theI think that people are just applying NOS ideas to the chips like they do tubes. But even all of these years later, the mystique around the datashert still amazes me. However, I think the nature of how silicon works vs.


Yes, my password is: I wish I could say that it sounded noticably better but the TL that I put in the amp did! I’m just wondering where things currently stand. 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.

Jun 4, The Rat2 is the same way.

The old pedal was not superior to the new one in any way, in fact, it was inferior in ways. May 23, 1.

4558P Datasheet

Ben HarmlessJun 4, Log in 4558o Sign up. 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. These 3, in particular, sounded really, really good.

Great points made, truly.