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

Roy J. Tellason rtellason at blazenet.net
Mon Jun 5 15:15:16 CDT 2006


On Monday 05 June 2006 04:04 pm, Chuck Guzis wrote:
> >Roger Merchberger wrote:
> >> 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.
>
> Well, one of the solutions before plated vias was copper eyelets connecting
> each side.  Other than being labor-intensive, I don't know why these still
> wouldn't work (assuming you could still obtain them.

They're still out there, I saw this subject come up in lists where people were 
DIY'ing boards,  wanted double-sided but didn't want to get into the whole 
hassle of trying to get the holes plated through or similar.  Not easy to 
find,  though.

-- 
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space,  a critter that can
be killed but can't be tamed.  --Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James 
M Dakin




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