11/70 board set on e-bay. . .

Henk Gooijen henk.gooijen at hotmail.com
Tue Jan 15 13:50:24 CST 2008


> Date: Mon, 14 Jan 2008 18:31:42 -0800
> From: ggs at shiresoft.com
> To: General at shiresoft.com
> CC: 
> Subject: Re: 11/70 board set on e-bay. . .
> 
> The 11/70 CPU is *not* a unibus backplane. It is a *very* large 
> backplane that fills an entire BA11F.
> 
> -- 
> 
> TTFN - Guy
 
 
Yes, that's very true what Guy says, but it is even worse than that.
The backplane does fill the entire space from front to rear in a BA11-F,
but it is actually *two* equally large backplanes. The two halves are
just connected by the wire wrapped wires!
The first part is the CPU, the second part are the 4 Massbus controllers
and a few UNIBUS slots, IIRC. You can look it up in the handbook.
So, if the entire backplane is taken out of its BA11-F, you have to
handle that beast very careful!  If that was to be shipped, I would put
it on a piece of wood with screws to transport it safely.
 
- Henk.


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