SBC6120 (a build-it-yourself PDP-8 clone) Last Buy and End ofLife

[Jim Beacon]

From: "Alexandre Souza" <alexandre-listas at e-secure.com.br>
.
>
>     No board should be without sockets. Period.
>
>     Even in prototype boards, you should use that. They are cheap
comparing
> to the price of your time for a future problem diagnose, or for the care
of
> the board in case you need to change one or two ICs. Sockets are cheap,
love
> them! ;o)
>

Actually, lots of boards should not have sockets!

For example, the RGB video combiner I'm designing at the moment, even those
couple of extra pF can spoil things. I'll also cite early double sided
boards, before through-hole plating - it is virtually impossible to solder
both sides of a socket. Add anything working above about 10MHz, and you'll
have it about right.

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!

Jim.