Date   : Tue, 27 Sep 2005 08:46:56 -0400
From   : "robert@..." <robert@...>
Subject: Re: Master ET

(Excuse any funnies with msg; I'm on holiday and accessing via an alien
webmail=2E)

The Master ET Ian obtained from me=2E=2E    It was bought new as a standrd
 ET
from Watford Electronics new in about 1987-1988=2E  I am sure I added the
user ports & ADFS ROM myself, but not sure about the user VIA=2E  Probably
,
if it's not standard fitted=2E  It was indeed used as a fileserver, with
internal 6502 co-pro and external amcom 10Mb hard disc=2E  Details are a b
it
fuzzy due to ~20 years passing since then =2E=2E=2E  No idea re *ROMS=2E=2E
=2E

Rob,




Original Message:
From: Ian Wolstenholme BBCMailingList@...=2Eco=2Euk
Date: Sun, 25 Sep 2005 21:05:00 +0100
To: bbc-micro@...=2Eco=2Euk
Subject: [BBC-Micro] Master ET


I've just got hold of a Master ET with a couple of interesting features
and wondered if anybody had come across them before:

Firstly, it has Tube, 1 MHz Bus and Printer Port sockets underneath=2E  Th
ey
are blue connectors, ie=2E not the usual Acorn black or grey ones=2E  I wo
ndered
if this was a user upgrade or whether there was a "Fileserver" version of
the ET?  It will work with a 6502 cheese wedge and a hard disc attached=2E

There
is no disc interface fitted but this is not required to run hard drives=2E


Many of the chips are socketed, including the teletext chip, CPU and user
VIA=2E Is
this usual in Masters?  And would the ET normally have had a User VIA ch
ip?

In the *ROMS listing, the contents of the system ROM (MOS, BASIC, ANFS) ar
e
repeated twice in the listing=2E  Is this normal?

This machine has an ADFS 1=2E30 ROM installed so that hard discs can be us
ed=2E
This increases PAGE as it is the old BBC B version but when I tried using
ADFS
1=2E50 it didn't work=2E  Does anyone know why?

Best wishes,


Ian



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