22 Aug
2006
22 Aug
'06
10:49 a.m.
Hi,
Jules Richardson said:
RE: Mk 14
Hmm, that is really surprising about the (lack of)
expansion ability -
I would
have thought it's one of the primary reasons in choosing a machine of that
class. I can't imagine doing something like in the ZX series (solder-pad edge
connector) would exactly have put the manufacturing cost up by much!
Indeed, the lack of expandability was a real downer. I wanted to add a
couple of k ram but it would have required major surgery. By that time,
however, I had another SC/MP board by a local firm (Kemitron, I think)
so the MK14 survives in un-butchered form. The optional in/out chip lines
(an INS8154) were brought out to an (0.15-inch pitch) edge connector
together with the processor flag and sense lines, and the serial in/out.
The keybourd had its own connector.
To find that info I had to dig out the manual and I couldn't resist
connecting the Mk14 to the shack power supply, it still works :-)
--
Cheers,
Stan Barr stanb at dial.pipex.com
The future was never like this!