PDP8/A memory problems, what to do?

From: Ethan Dicks <erd_6502_at_yahoo.com>
Date: Thu Dec 27 10:14:35 2001

--- Pete Turnbull <pete_at_dunnington.u-net.com> wrote:
> On Dec 26, 18:21, Ethan Dicks wrote:
> > --- Pete Turnbull <pete_at_dunnington.u-net.com> wrote:
> > > > It's not cool like core, but did anyone ever come up with a modern
> > > > battery-backed-up SRAM board?
> > >
> > > Yes, I've got one...
> It's a commercial 4-layer board. The legend says "Tellima Technology Ltd
> (C) 1995", "PC03753"...

I had no idea people were making OMNIBUS boards in 1995. That's amazing.
There are still machines in commercial use, but most of them are so deep
inside something else that nobody knows how to upgrade them, let alone
_want_ to change out the old for the new.

I see they are a British company (http://www.tellima.co.uk) I guess that
means that their products will be a wee bit less common on this side of
the pond.


  It has a couple of surface-mount KM68100 SRAMs,
> but
> the most prominent features are the two Actel 1020 FPGAs. It also has 6
> x
> 8837 and 3 x 8838 interface ICs, a pair of 74HCT244's, 2 x 74HCT160 and a
> 74HCT161, a MAX695, a 16MHz oscillator, a 3V 1/2AA lithium cell, a littl
> daughterboard with some inteface chips, and the 26-way header for the PC
> interface.
> The PC interface is a small 4-layer ISA card "PC03285-C", with a couple
> of
> Actel 1010's, a few small SMDs, 2 x 74HCT160 and a 74HCT161, and a 26-pin
> header on the backplate. Interestingly, it also has space for a 132-pin
> SMD device, several smaller SMDs, eight ZIP devices, and a couple of
> 8-pin
> miniDINs.
> I don't have a scanner, at least not one that works. Nor a digital
> camera,
> except my Indycams, which aren't exactly high resolution. I'll see what
> I
> can do...
> --
> Pete Peter Turnbull
> Network Manager
> University of York

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Received on Thu Dec 27 2001 - 10:14:35 GMT

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