Date   : Sun, 28 Dec 2008 22:34:21 +0000
From   : robert@... (Rob)
Subject: OT: ZX80 ROM ?

2008/12/28 Mark Haysman <jumbos.bazzar@...>:
> Rob wrote:
>> It's made me check what exactly Mark sent me, and despite my
>> recollection of discussing 2532s, he sent me a 2732..  No big deal, as
>> I can knock up an adapter quickly enough, but it's handy to know in
>
> Nope, you definately asked fror a 2732...
>
So I did .. Sorry for implying otherwise.  I was relying on the old
wetware memory, rather than my email archive.. :-S

>
> However, I've sent you the right one, as I've just checked the schematic.
> The only time it matters, is if the original device was a TMS-2732, which is
> tri-voltage, the TMS-2532 is a single voltage device, identical to the
> (non-TMS) 2732. TI and Intel really messed with peoples heads with their
> numbering at that time!

Oh god, tell me about it..  I remember going through that back at the time...

I thnk the thing to do now is make it a priority to find the damn
thing at the back of the cupboard...  I've promised to bring it along
to Byte Back after all!!  Oh, and to follow up on Phill's post, it's
actualy got a ZX81 ROM in it (but without keyboard overlay) which was
put in about 20 years ago, and the original ROM subsequently lost at
some point during the six house moves I've had since then, hence my
original request.