Date   : Wed, 17 May 2006 18:54:47 +0100
From   : "Ian Wolstenholme" <BBCMailingList@...>
Subject: Re: BBC Master 128 with VFS and SCSI

I have seen something similar with the red sticker underneath before
but I hadn't seen the insides.  I have a Genlock card identical to this
which I bought from Chris at 8BS when I was just getting into thinking
about how I could put together my own Domesday Machine.

The Domesday Machine was originally developed on the BBC B as the
Master wasn't out at the time and I have seen pictures in one of the
Acorn magazines from c. 1984 with a BBC B connected up to a "top-
loading" type of laserdisc player.

I have VP410 and VP415 players here, which are identical as far as the
laserdisc playing side of things goes but the VP415 has the additional
"slice" at the bottom with the SCSI circuitry and genlock.

There would be no way of connecting a standard VP410 to a Beeb so
presumably the SCSI section was always intended to be bolted on to
the player but maybe the idea of putting the Genlock in there as well
was a late decision.

Best wishes,



Ian

----- Original Message -----
From: Jules Richardson
To:  bbc-micro@...
Sent:  Wed, 17 May 2006 15:34:39 +0100
Subject: Re: [BBC-Micro] BBC Master 128 with VFS and SCSI

Joel Rowbottom wrote:
> Just noticed this has been bought-it-now on eBay - anyone on the list 
> get it?

Adrian of binarydinosaurs - so it's in good hands :)(well, assuming you mean 
item 8284785841)

I'll take a look at it when I'm back in the UK; I can probably borrow it and 
get some high-res shots too. I'm curious as to whether the genlock card's the 
same setup as that in the VP415 player, or whether it's a totally different 
board (supposedly the BBC themselves had several BBC machines with genlocks - 
I've never been able to find out for sure which boards they used)

*presumably* at one point there existed a Master like this one, a hacked VP405 
LVROM, and a box of tricks in the middle to do the control and interpret the 
SCSI bus - what eventually became the VP415.

> I've just taken delivery of an LVROM this morning *apparently* with the 
> SCSI mods, but I've not investigated it yet (had to dash to work).

Interesting. I thought all VP415 players had the necessary stuff for this - 
but there were a few VP405s hacked as development units to do the job; seeing 
some pictures of the latter would be great.

Or did VP415 boxes exist without the bottom slice containing the SCSI board 
and the genlock? Pictures of that - particularly detailed photos of the 
microcontroller  board pair would be great in order to compare differences to 
the 'real' units...

cheers

Jules