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Old 1st January 2010, 11:48 AM   #1
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Default Socket mounting instead of soldering

Hi guys,
working on my new project i guess if any audibile issue would emerge mounting devices such as DACs, OpAmps and generic ICs on sockets instead of soldering.

The project could be highly tunable so i would avoid removing of ICs after first soldering operation.

Any opinion and/or experience would be much appreciated.
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Old 3rd January 2010, 03:26 AM   #2
T in AZ is offline T in AZ  United States
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Have a couple of these just in case-> (IC Extractor) I like soldering better, good heat transfer, good contact, less chance of noise from a week contact, but I don't know all the details of you design.
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Old 3rd January 2010, 06:40 AM   #3
wwenze is offline wwenze  Singapore
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Intel didn't seem to have any problem with their 3GHz chips being mounted on sockets.
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Old 3rd January 2010, 06:50 AM   #4
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A good deal of my custom work is pulling the IC's from being directly soldered to the board and putting in sockets for them (in none-too-cheap amps to boot).

Cheers!
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Old 3rd January 2010, 07:02 AM   #5
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I always use sockets. Maybe I don't know what I'm missing, but I'm not unhappy with my stuff.
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Old 3rd January 2010, 07:26 AM   #6
Mooly is online now Mooly  United Kingdom
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I have never liked using sockets but agree they can be an advantage if you like trying different parts.
On a practical level they do introduce a little stray capacitance/inductance etc that certainly can be an issue with HF work etc.
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Old 3rd January 2010, 07:27 AM   #7
Mooly is online now Mooly  United Kingdom
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Quote:
Originally Posted by wwenze View Post
Intel didn't seem to have any problem with their 3GHz chips being mounted on sockets.
Because the design will take the characteristics of the socket into account
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Old 3rd January 2010, 04:51 PM   #8
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Which sockets are better?

There are 3 kinds of pins shape,
1 http://www.solarbotics.com/assets/im...in/dc14_pl.jpg
2 http://rocky.digikey.com/weblib/Arie...08-3518-10.jpg
3 http://media.digikey.com/photos/3M%2...7-19-0602J.JPG

My guess is first one is better due to match between IC pin shape and it's opposite connector (they are both flat)
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Old 3rd January 2010, 05:04 PM   #9
Mooly is online now Mooly  United Kingdom
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The first are better for fiddling about with... opamp swapping etc as many on here like to do.
The second are a better product but not suited IMO to keep inserting and removing parts. Think they are Berrylium copper ? plated contacts.

Best of all... get the design right and don't use any
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Old 6th January 2010, 07:31 AM   #10
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Quote:
Originally Posted by Mooly View Post
Best of all... get the design right and don't use any
Oh, easy to say .... hard to do !!!
In my case i would like to experiment much variants of circuits.
Second, my soldering ( and unsoldering ) skillness is not at the best anymore !

Anyway, thanks to all of you that replied !
Much appreciated
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