JRC4558 PDF

aaaaaaaaaaaaaadigital audio Hi Nige, I bought one of these recently. digital audio link via USB dongle transmitter and 30m range. JRC Dual Op Amp IC. JRC Dual Op Amp IC. Price: $ Datasheet: application/pdf icon RCpdf. JRC Dual Op Amp. DIP ICs – Linear. The JRC integrated circuit by Japan Radio Company is a dual high gain operational amplifier internally compensated and constructed on a single silicon .

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On the other hand, “better” and “vintage” aren’t necessarily the same thing, even though they get jumbled together in our sorry little heads. People are building clones and ditching their ‘real deals’ because they sound better.

May 24, 5. May 24, 7. Then I experimented with different chips. May 23, 2.

After that, the changes aren’t so huge. There is nothing magical about the “new old stock” JRC that constitutes spending too much money for a “vintage chip”.

JRC4558 myths…

I have better things to do. 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.

They are still available in isolated caches of parts, although they can sometimes be hard to find. Only the RC is in stock. These 3, in particular, sounded really, really good. Remember, these were the “budget” distortion in the lineup. The clone had premium caps as well.

JRC – Dual high Gain Operational Amplifier – DIP-8

I have seen a that was originally a run of that either didn’t meet spec, or was simply labeled differently for inventory purposes. Originally posted by Fret Wire Man They are common chips but most places don’t carry that kind of thing.

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As a side benefit, you’ll be able to swap chips to test others that may interest you. The new one has the reissue JRC that’s been out for awhile. As mentioned elsewhere, the is a high performancewhich is a better version of another IC.

Those and the chip are the only difference between an and TS No, create an account now. Ben HarmlessJun 4, I guess I’ll check back in 10 years from now and see how things have changed.

I’ll add that despite what is printed on the top of the chip, it may have originally been a run of a different chip. So I don’t buy the Holy Grail theory. Jfc4558 think the high end stereo guys, in particular, have been suseptable to this sort of pseudo-scientific clap-trap. May 24, 8. Clever marketing can take advantage of this to sell a ten cent amp for ten bucks.

Op amps are fairly simple circuits compared to many other chips. I’m just curious, because most pedal experts seem to concur that both old and current production chips from different parts of Asia all tend to sound consistently the same.

However, I think the nature of how silicon works vs. You must log in or sign up to reply here. It’s amazing how some of these falsehoods prevail.

RIAA Preamplifier using NJM / JRC Op Amp

Personally, I think it’s the build of the pedal and the sum of all components. The ONLY way to figure out if different chips will sound better or worse, or the same in any individual pedal, is to swap them and listen. Great points made, truly. I will go as far to say ALL ‘s sound so similar I doubt anyone could hear a difference in a blindfold test. Most Active Authors Latest Reviews.

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One of the 9’s was beefed up with better i. You’ll have to skip over all of the posts about ancient mainframe computers to get to the die photos. There are millions of these vintage chips out there in jgc4558 70’s electronics junk. I’ll bet you’ll find a winner in those three choices. But I beleive the old JRC version is the holy grail of some even though the actual chip in some of the originals may be made by others.

Robbie WMay 24, The JRC chip is the real sought after vintage one, so resale value on the RC chip is going to be lower. 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?

There were zillions of the real “JRC” made when it was current. I’m just wondering where things currently stand. Both have the JRC They are common chips but most places don’t carry that kind of thing. Small Bear caters to pedal builders so there is no minimum.