Building a PDP-11 for the first time

From: John Allain <allain_at_panix.com>
Date: Wed Dec 10 18:50:28 2003

> I'm thinking that I have all that I need here, but I could be wrong.

Here's a quick answer, possibly wrong (I don't think so, but I
was never a DEC FE), but quick anyway.

> BA23 enclosure
> M8067 (512k memory?)
  likely 128K
> M7516 (DELQA)
> Dilog DQ686 (ESDI controller)
> Maxtor ESDI drive (don't remember how large offhand)

and

> M8190-AB (11/84 cpu)

I separated the '84 CPU because it's oops Unibus and not
Qbus. Everything else you have listed is Qbus. The busses
don't mix.

You're in about the same shape as I am. I have all the boards
except the memory board, and even though I have a Qbus
system complete with memory (microVAX II) here too, it's not
compatible with a PDP11 CPU.

The m8186 is a Qbus 11/23, and the m8192 is a 11/73 (Qbus is
always -/x3) The CPU boards show up on eBay about 6~12 times
a year for an OK price, or if you have a spare memory board to trade
or can get one I can trade you a CPU too.

Good Luck,
John A.
Received on Wed Dec 10 2003 - 18:50:28 GMT