From: Pete Norman
Thanks for all the interesting feedback, everyone! What an amazing pool of
knowledge there is out there... Pete, g0pks.
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- Original Message -
From: ANNE NORMAN [EMAIL PROTECTED]
To: Elecraft@mailman.qth.net
Sent: Tuesday, January 04, 2005 9:22 AM
Subject: [Elecraft] Re: IC pins
From: Pete Norman
Hello everyone! I'm just toddling along with my build. The major problem
so far has been fixing the bail
Subject: [Elecraft] Re: IC pins
From: Pete Norman
Hello everyone! I'm just toddling along with my build. The
major problem so far has been fixing the bail to the bottom
panel! What a beast!
Anyway, it occurs to me (and has often occurred to me) why do
we have to reform the pins
From: Pete Norman
Hello everyone! I'm just toddling along with my build. The major problem so
far has been fixing the bail to the bottom panel! What a beast!
Anyway, it occurs to me (and has often occurred to me) why do we have to reform
the pins on ICs? How come they aren't manufactured
Pete:
Hello everyone! I'm just toddling along with my build. The major problem
so far has been fixing the bail to the bottom panel! What a beast!
It's probably too late now, but the easy way to install the bail is to
(temporarily) use longer screws to affix the bail and then to replace
At least one insertion machine I've seen that stuffs boards grabs the IC
from the outside of all the pins and automatically squeezes to make the pins
all exactly the right distance apart. It sets the I.C. into the pad holes in
the board, then a little ram in the center shoves the I.C. down against
Anyway, it occurs to me (and has often occurred to me) why do we have to
reform the pins on ICs? How come they aren't manufactured the right
shape? I
go into ESD-panic mode every time I have to re-form them and some have
been a complete pain to match up to their socket.
This is just a
On Jan 4, 2005, at 9:31 AM, Tom Hammond wrote:
Anyway, it occurs to me (and has often occurred to me) why do we have
to reform the pins on ICs? How come they aren't manufactured the
right shape? I go into ESD-panic mode every time I have to re-form
them and some have been a complete pain
Use an IC insertion tool
It is so they don't fall out once inserted into a pc board while awaiting
soldering.
NRE/COLE Test Center OH-3
pcarteratgcfn.org or wd8qwratarrl.net
Philip L. Carter, WD8QWR
[EMAIL PROTECTED]
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As for the bail:
Tie a peice of twine around the bail and use a screwdriver or something
like that to tighten it like a turniquet (not too tight). Insert it in the
holes and loosen the turniquet. If you tighten it too much or keep it
that way for too long, you will change the shape of the bail.
If your local humidity is kept above 50 per cent RH, you can grasp the pins
of any IC and gently squeeze them to close them to fit sockets. I usually
lay them sideways on the desk top and put pressure on them, holding the
plastic or ceramic body. This is the safest way.
-Stuart
K5KVH
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