On Wed, 11 Oct 2000 19:53:36 -0500, you wrote:
>Sorry if this is a bit off topic, but does anyone else prefer machine
>pin type sockets? I believe Gregg Woodcock also recommended those. I
I _vastly_ prefer them to the cheap single-wiper type, yes; I've found
them much more reliable in the long run.
>am having trouble with the theory here. It seems to me that if you use
>machine pin sockets (with the conical round holes and no spring
>tension), that if there are any differences in the pin lengths of your
>IC, that the shortest pin might not make good contact. Whereas, with the
>other style (solder tail?), the sockets have spring tension and apply
>pressure to the sides of the IC pins. Pin length would therefore be
The pin lengths would have to be _very_ uneven for it to make any
difference, really... maybe a part that's been desoldered from a board,
with trimmed leads, might present a problem, but new parts or parts removed
from sockets will be fine.
>less critical. Also, It would seem to me that machine pin sockets would
>wear quicker, in situations where an IC has to be removed and
>reinstalled several times. (the holes could become rounded out).
Well, yes, _eventually_... but if you need to insert and remove a part
_that_ many times, you really should install a ZIF socket instead. :) I've
used machined-pin sockets on some prototypes, though, where I ended up
pulling an EPROM or microcontroller in and out a couple dozen times over
the course of development, and never had a problem with it...
-------------------------------------------------------------------------------
Scientists decode the first confirmed alien transmission from outer space...
"This really works! Just send 5*10^50 atoms of hydrogen to each of the five
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delete the system at the bottom, and send out copies of this message to 100
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-----------------------------------------------------------------------------
solarfox@DON'TMESSWITHtexas.net (Gary Akins jr.)
http://lonestar.texas.net/~solarfox
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Received on Wed Oct 11 23:20:15 2000
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