New Posts New Posts RSS Feed - 741 op-amp revisited
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Welcome to the Graham Slee Audio Products Owners Forum

 

Open to all owners plus those contemplating the purchase of a Graham Slee HiFi System Components audio product and wishing to use this forum's loaner program: join here (Rules on posting can be found here)

This website along with trade marks Graham Slee and HiFi System Components are owned by Cadman Enterprises Ltd


741 op-amp revisited

 Post Reply Post Reply Page  <12
Author
Ash View Drop Down
Senior Member
Senior Member
Avatar

Joined: 18 Mar 2013
Location: Dorset
Status: Offline
Points: 4334
Post Options Post Options   Thanks (0) Thanks(0)   Quote Ash Quote  Post ReplyReply Direct Link To This Post Posted: 21 Mar 2013 at 12:21am
Great, some 741 op-amp electronics. At last, a topic I can relate to. Thanks for posting; an interesting read.
Back to Top
Dave Friday View Drop Down
Senior Member
Senior Member


Joined: 07 Apr 2011
Location: Spain
Status: Offline
Points: 173
Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave Friday Quote  Post ReplyReply Direct Link To This Post Posted: 21 Mar 2013 at 10:42am
I built a "Texan" in 1971 that used 741 and 748 chips in the preamp, the output stage [tip41/42] didnt use any emmiter resistors!!] it sounded ok but picked up taxis!
Back to Top
Graham Slee View Drop Down
Admin Group
Admin Group
Avatar
Retired

Joined: 11 Jan 2008
Location: South Yorkshire
Status: Offline
Points: 16298
Post Options Post Options   Thanks (0) Thanks(0)   Quote Graham Slee Quote  Post ReplyReply Direct Link To This Post Posted: 21 Mar 2013 at 1:28pm
Originally posted by Dave Friday Dave Friday wrote:

I built a "Texan" in 1971 that used 741 and 748 chips in the preamp, the output stage [tip41/42] didnt use any emmiter resistors!!] it sounded ok but picked up taxis!


I'm not at all surprised.
That none should be able to buy or sell without a smartphone and the knowledge in how to use apps
Back to Top
Paperweight View Drop Down
Regular
Regular
Avatar

Joined: 21 Mar 2011
Location: Lexington NC US
Status: Offline
Points: 84
Post Options Post Options   Thanks (0) Thanks(0)   Quote Paperweight Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 2017 at 12:50am
Which particular parts/passives do op amps wear out? I'm guessing it's internal parts.
Back to Top
Graham Slee View Drop Down
Admin Group
Admin Group
Avatar
Retired

Joined: 11 Jan 2008
Location: South Yorkshire
Status: Offline
Points: 16298
Post Options Post Options   Thanks (0) Thanks(0)   Quote Graham Slee Quote  Post ReplyReply Direct Link To This Post Posted: 17 Feb 2017 at 7:20am
Originally posted by Paperweight Paperweight wrote:

Which particular parts/passives do op amps wear out? I'm guessing it's internal parts.


Perhaps due to "fatigue" after several decades, but if not run beyond their capabilities, and not exposed to the ravages of the elements, there is no wear out.


Edited by Graham Slee - 17 Feb 2017 at 7:22am
That none should be able to buy or sell without a smartphone and the knowledge in how to use apps
Back to Top
 Post Reply Post Reply Page  <12
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.01
Copyright ©2001-2018 Web Wiz Ltd.

This page was generated in 0.082 seconds.