Date   : Tue, 13 Dec 2011 13:40:38 +0100
From   : kortink@... (John Kortink)
Subject: 32016 + 32082

On Tue, 13 Dec 2011 08:17:51 +0000, Dave Curran <bbc@...>
wrote:

>[...]
>
>Also, thanks to the excellent photograph, it appears that unlike IC3's
>socket, IC2's socket is made up of two 24 pin sockets, rather than a single
>48 pin as you would expect from a factory assembled unit - the lower one is
>slightly wider and obscures the screen printing around the socket.

That's true. I hadn't even noticed, until now. Strange thing
is that the socket for IC3 is turned pin as well (unlike the
others). I don't think Acorn ever used turned pin sockets in
production (perhaps ironically, I never use anything else).
So it is likely that that one was retro-fitted as well.

>I would expect to see different soldering on the IC2 socket and it's capacitors,
>and possibly on the IC6 socket as well.

Yes, there was solder residue on both (although by now removed).

>And a final bit of archaeology, quite a few of the date codes on the
>important chips are around the 8430s, the rest of the board is 83/84 apart
>from the 32082, the hand blown EPROMs and the RAM which are 85/86, could
>this have been a 64k unit upgraded a couple of years after manufacture?

I had noticed that too. Most likely manufactured around mid
to end '84 and upgraded later on. The serial number stuck to
the wedge is 0100034.


John Kortink

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