Replacement for 4136CP - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 31st March 2008, 02:39 PM   #1
AMV8 is offline AMV8  United Kingdom
diyAudio Member
 
Join Date: Jan 2005
Location: near london
Default Replacement for 4136CP

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
  Reply With Quote
Old 31st March 2008, 03:21 PM   #2
diyAudio Member
 
Join Date: Feb 2008
RC4136 is four pcs of 741 OPA in one case.
datasheet

Forum threads:
Upgrade/alternative to RC4136 ?
http://www.head-fi.org/forums/f6/rc-...estion-243849/
  Reply With Quote
Old 31st March 2008, 05:05 PM   #3
Mooly is offline Mooly  United Kingdom
diyAudio Moderator
 
Mooly's Avatar
 
Join Date: Sep 2007
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
  Reply With Quote
Old 5th April 2008, 10:41 AM   #4
d3imlay is offline d3imlay  United States
diyAudio Member
 
Join Date: Sep 2004
Location: Ohio
There are a few adapter boards out there. Brown dog has a board.

Brown Dog site
  Reply With Quote
Old 5th April 2008, 04:17 PM   #5
diyAudio Member
 
Join Date: Apr 2008
Hi

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

The Dual version was RC4558 .
  Reply With Quote
Old 5th April 2008, 04:37 PM   #6
diyAudio Member
 
Zero Cool's Avatar
 
Join Date: Sep 2004
Location: MN
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...
  Reply With Quote
Old 5th April 2008, 04:56 PM   #7
diyAudio Member
 
Join Date: Mar 2007
Location: Canandaigua, NY USA
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.
__________________
I may be barking up the wrong tree, but at least I'm barking!
  Reply With Quote
Old 5th April 2008, 07:07 PM   #8
lms is offline lms  Micronesia
diyAudio Member
 
Join Date: Aug 2004
Location: beach
TI still makes them as RC4136 with slightly better performance than original (~ 2X slew rate) for under $1
  Reply With Quote
Old 6th April 2008, 04:03 AM   #9
diyAudio Member
 
Join Date: Apr 2008
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 .
  Reply With Quote
Old 6th April 2008, 05:30 AM   #10
diyAudio Member
 
wrenchone's Avatar
 
Join Date: Feb 2004
Location: Silicon Valley
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....
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
AD 846 replacement Fasen Digital Line Level 21 26th January 2013 01:53 PM
MTX 5 ch pot replacement pk386 Parts 2 1st October 2006 04:32 AM
irf 740 replacement bob_v5 Solid State 6 10th December 2005 02:16 PM
looking for a replacement for pcb cad bigpanda Solid State 1 18th September 2004 07:24 AM


New To Site? Need Help?

All times are GMT. The time now is 11:22 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2