ELECTRICAL CHARACTERISTICS (Vcc=V, VEE=V, TA=25℃, unless otherwise specified). PARAMETER. SYMBOL TEST CONDUCTION. MIN. TYP. Does anyone know where I can find a datasheet for a JRC DD chip?. DD Datasheet, DD PDF, DD Data sheet, DD manual, DD pdf, DD, datenblatt, Electronics DD, alldatasheet, free, datasheet.

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The other two, NJM are close relatives of the NE, one is used for tone control and is bypassed when these controls are not used. Yes, my password is: GibsonianJan 29, Any of the plastic bodied DIP’s in this group will work? Several sources make it. You must log in or sign up to reply here.

In any cese, if there is one to be replaced, this is the one look for it between the two blue bands that drive the tape loop and record out selectors. The National LM is a great chip. The other is in the output stage but I am not altogether certain it does much more than DC and LF duty Anyone have any info. That’s about THE most common op-amp configuration.


Do you already have an account? But does much much better from about 1kHz up for Distortion, noise, separation More clarity, just as much bass but tighter.

D Datasheet PDF – Dual Operational Amplifier – NJRC

I have recapped an older Denon PRA preamp and am hoping to replace the opamps inside to further improve this oldie but goodie. Its sounds very clean, clear and detailed in mid range up.

GibsonianJan 28, I just upgraded my Entech dac to the LM and put some film bypass caps on the supply rails I use it as a drop in replacement all the time for the In the phono circuit some 4558ddd oldies, uPCC’s, u is micro I cannot find any info.

Thanks for your help guys.

Thanks for posting this Let me know your results, I may want to experiment with the LM as well. I was surprised at the difference at first, until I read the specs, then it all made sense I would like to compare. How about spec sheet on the C, know of where it can be found?


Personally, I prefer Texas Instrument’s Excaliber series. Mystic 4558drJan 31, That is my opinion of course, you may want to compare a few to get the sound you like. The bar continues to raise, which is good for the ears. I was reading the specs on both chips.

(PDF) jrc4558dd Datasheet download

GibsonianFeb 3, No, create an account now. No – the is a dual op-amp. I’m not too surprised by your findings.

Log in or Sign up. The LM does better through out the Freq range. Your name or email address: National Semiconductors LME49xxx line of op-amps have very impressive specs, but I haven’t tried them out yet Share This Page Tweet.