Date   : Fri, 21 Jul 2006 00:13:14 +0200
From   : "Peter Van Ek" <vanekp@...>
Subject: Re: Vine Micros Replay

----- Original Message -----
From: "Rob" <robert@...>
To: "Peter Van Ek" <vanekp@...>; "BBC-Micro Mailing List"
<bbc-micro@...>
Sent: Thursday, July 20, 2006 12:57 AM
Subject: Re: [BBC-Micro] Vine Micros Replay

> At 14:52 19/07/2006, Peter Van Ek wrote:
>
>
> >
> >While on the subject, does anyone have the circuit diagram for the
> >BBC Master replay system ?
> >
>
> No. but I've got one, and might be persuaded to try and work it out!
>
> It's a little more complicated, 74LS138, 74LS32, 74LS14, 74LS38,
> 74LS30 (all B1 suffix?) some caps and resistors, three ROM sockets
> (it sits in the 1Mb/MOS ROM socket with the MOS ROM relocated to the
> board) and the Replay ROM doesn't appear as a separate entity in
> *ROMS.  There's a spare socket. A flying lead to a piggy back
> arrangement on IC51? with connections to pins 14 & 37, and another to
> the button.  There is a 2 pin jumper header too.
>
> You can see it in the pics at http://www.irrelevant.com/bbc/tower.html
>
> Rob.
>
It does sound a lot more complicated than the BBC one and looks if from the
pictures you posted.

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