4x Dual J-fet OPAMP IC Njmd JRC Op-amp Njm d. Be the first to write a review. About this product. Picture 1 of 3; Picture 2 of 3; Picture 3 of 3. Hey I’ve got an old keyboard amp lying around, and It’s got four 8-pin IC’s in it, labelled D JRC Anybody have any idea on what these. EPCOS AG. Part No. CXOD-FREQ-OUT3. Description, CRYSTAL OSCILLATOR, CLOCK, MHz – MHz, TTL OUTPUT. File Size, K / 1 Page.

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I also built a low-pass filter is active. No, create an account now. You must have a wiring or shielding problem if there is noise that is reduced when you touch its ground. You May Also Like: Digital potentiometers are shown 02d a dual-ganged manual pot will also work. But I concern to reduce noise. Or many other types also. Then I installed a brand new CP and has the exact same results.

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Dual J-FET Input Operational Amplifier

I’m guessing the way the circuit was designed that the CP would 072 function properly. Ziddik Member Oct 15, Discussion in ‘ General Electronics Chat ‘ started by sweatykDec 28, Any help would be appreciated!


jdc For a 2nd-order rolloff you can use a Sallen-Key filter with a dual-pot to vary the rolloff frequency such as shown here. Click here to register now.

Thread starter Nikolai Petrenko Start date Oct 8, However the reverb on this amp does function quite well so I’m still jjrc my head The datasheet says that at low gain it will probably oscillate. Nikolai Petrenko Member Oct 8, In sound quality that is.

A Randall RH G2 to be exact. Quote of the day. A TL or TL is very common and is available everywhere except not on the moon, are you there?

The “improved” 072e Toshiba oscillated so badly that all that were sold were recalled and replaced with something else.

Nikolai Petrenko Member Oct 15, Satellite speakers drive by 1 LA Based on the datasheets they are extremely similar with the exception of the slew rate. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.


Dec 28, 1. Either way I have since discovered jrcc the chip is not the real problem anyway. Question Posted by crash in forum: I only use one of its channels.

They are near as damn it the same thing.

Potentiometer Questions Started by norbss Yesterday at I used 2 Tda to drive subwoofer speaker. Electro Tech 07d an online community with overmembers who enjoy talking about and building electronic circuits, projects and gadgets. First I tried a used one I had laying around and the 2nd gain stage would not function at all But the problem in the subwoofer amplifier.

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jrc d cdm datasheet & applicatoin notes – Datasheet Archive

Articles Top Articles Search resources. I put the old one back in and unplugged the reverb tank and the problem went away. Problem of subwoofer amplifier.