Rumor has it that Jim Beacon may have mentioned these words:
I'll also cite early double sided
boards, before through-hole plating - it is virtually impossible to solder
both sides of a socket.
Virtually impossible? I doubt that - however, there's a few caveats...
Why not get wire-wrap sockets that have longer tails, and put a toothpick
or popsicle stick under the socket when you solder it (with enough room to
remove it later), then it will give enough room to solder the top as well,
thereby bridging both layers. Sure, it's a little more labor, but can &
does work... Granted, if you were working in a very limited height
scenario, one might need to be careful with the extra height.
Add anything working above about 10MHz, and
you'll
have it about right.
Why 10Mhz? At least in a computer-centric sense, if sockets weren't
possible to be used above that freq. how come 2+GHz CPUs can be socketed &
work, and 400+Mhz memory can be socketed & work fine?
[[ I have no knowledge of audio/analog circuit shiznit WRT stuff like
that.... ]]
Oh, and anything you want to be reliable......
Remember all those "I reseated the chips in their sockets and it worked"
posts you've seen on this list!
Use machine-turned or machine-pin sockets. Don't blame the socket for all
the companies (CouATARIgh ;-) that used cheap sockets... Besides, cheap
sockets are still better than no sockets when you need to repair or replace
a ROM type chip (CouTANDYgh ;-) but I won't mention any names. ;^>
Anyway, reseating chips isn't that difficult of a "fix" anyway...
Laterz,
Roger "Merch" Merchberger
--
Roger "Merch" Merchberger | "Bugs of a feather flock together."
sysadmin, Iceberg Computers | Russell Nelson
zmerch at
30below.com |