2 Sep
2011
2 Sep
'11
11:26 a.m.
That's my guess. Physically it looks spotless -
not even any dust, it looks
near-new. Another nice thing is that at some stage, someone has replacd the
ROM sockets with nice turned-pin ones, so I probably don't need to worry
about bad sockets there.
But you've got plenty of other 'cheap' sockets to give problems :-)...
This reminds me of my Whitechapel MG1, an English 32016-based
workstation. The small chips are soldered to the PCB, the 'big stuff'
(CPU, FPU, peripheral controller, etc) are all in turned-pin sockets. But
the EPROMs (2 for the main processor, one for the peripehral controller)
are in cheap sockets. I had plenty of problems before I replaced those
sockets with turned-pin ones.
The broken leg came off almost perfectly flush with
the bottom of the
crystal can. Believe me, I've tried to solder something to the stub, but
Ah, OK...
there's just not enough there to make a connection
with acceptable
strength. I do want a crystal of the original frequency; this mod looks
like it was a period thing (quite a standard procedure though, from your
earlier post), so I'd like to keep it as part of this machine. I wouldn't
really feel bad about returning it to NTSC-ish behaviour though. I'll drop
in to RS on the way home from work today and grab a 14.318MHz crystal. That
should allow me to work on the thing this weekend.
I thought you said you wanted an Apple ][ +, not a Europlus? If so,
youwant to revers the cut/jumper pad modifications (remove the solder
from the circlar pads so they are open-circuit again
and solder a jumper
across the X-shaped ones), and fit the 14.318MHz crystal. That
will give
you NTSC video.
I suspect that was the origianl conmfiguration of the machine, as it left
the factory. So going back to that is 'correct', as would be keepign it
asa 50Hz machine. I beleive you said you had other 50Hz machines, though,
and if I was in that psotion, I'd make this one a 60Hz'er just to have
both versions around.
-tony