Replacement for 4136CP

[AMV8]

I am about to rebuild a Carver pre amp C1.

It uses 4136cp's in the line amp, tone controls, tape stages - but not the phone stage. Altogether it has 7 number 4236CP's in use.

What would be a good replacement for these?

Don

 

[Andy L. Francis]

RC4136 is four pcs of 741 OPA in one case.
datasheet

Forum threads:
http://www.diyaudio.com/forums/showthread.php?threadid=4266
http://www.head-fi.org/forums/f6/rc-4136-tl074-opamp-replacement-question-243849/

 

[Mooly]

There's a blast from the past. The supply pins are different to most common quad opamps you will come across so you can't just swap directly. On the 4136 pin 11 was positive and pin 7 negative. I can't think of anything "audiophile" with this pin out. Maplin used these in one of there kit amps around 1980 I recall. Shame as replacing these would certainly be an improvement, although they were touted at the time as being for high quality audio with a class A/B output stage.
Regards Karl

 

[d3imlay]

There are a few adapter boards out there. Brown dog has a board.

Brown Dog site

 

[Simplex2]

Hi

The 4136 is not exactly a quad 741 he has better SR (1V/µS) better noise (10nV) . It was better .

The Dual version was RC4558 .

 

[Zero Cool]

There is a guy on eBay selling brand new old stock 4136 $20 for 8 i think. expensive and i don't know why anyone would want to use them...

 

[Conrad Hoffman]

Yup, that was that darn weird part where somebody decided to be different and foul up the pinout. In its day it wasn't bad, but its day was a very long time ago. I'd go with an adapter board.

 

[Capt Grogg]

TI still makes them as RC4136 with slightly better performance than original (~ 2X slew rate) for under $1

 

[Simplex2]

Hi

If you really search a replacement and upgrade the dual op amp NE5532 can be a good choice .
Far more better in speed , noise , distortion and output , unity gain stable . No decoupling tricks and is cheap ...

But you must buy 14 and make an adapter board .

 

[wrenchone]

One has to remember that in the early/mid-70's that there wasn't a dominant standard pinout for quad opamps, as they were relative newcomers. A lot of manufacturers like Raytheon, Exar, TI, etc. used the 4136 pinout, while others adopted the LM324 pinout. The single and dual (in DIP-8) pinouts were pretty much cast in stone by that time. The LM324 pinout eventualy won out. It probably helped that some of the makers of the 4136-style pinout opamps faded into the sunset...

I agree with many others that one could do a whole lot better than the 4136 these days - it would be worth your while to use an adapter board.

I'm faced with a simialr situation. I have a Technics and a Kenwood amp needing repairs. The output stages look decent, but the preamp sections are full of nasty 4558 clones of various sorts - not for long, though....

 

[CrazzyAbtTubes]

use a TL074 or TL072 as sub?

Is it possible to use a TL074 as a substitute? I have an AudioControl EQX equalizer that I was given and some one totally blew it up. 2 4136CP Ic's are split in half!

I have piles of 4558 Ic's and 741's as well, I just want to get this equalizer working to make a sub woofer system.

 

[sregor]

I have used TL075 (If you can find them - it's been a while) They are same as TL074 but have same pin out as 4136. Good luck. Steve

 

[djk]

I used to upgrade the 4136 in Carver products with the TL075 (no longer available).

Now an expensive adapter board and a pair of dual surface mount op-amps are needed.