27 Jan
2012
27 Jan
'12
12:53 p.m.
However, the M3 has a white phosphor CRT, the M4 has a green one. Of
coruse the CRT can be changed, but if the machiens were 'stock', that's
the most obbvious thing that you might care about.
C: I had a 128k version model 4 (presumably). It had a amber screen. I
I qam pretty sure the only 'official' way to get 128K in a Mdoel 3 was t
o upgrade it to a Model 4 :-)
sold it.
As for the CRT, I don't recall Tandy/Radio Shack ever shipping machines
with amber CRTs. But I do recall an advert in Byte (and I assume in other
magazines) for a complany that supplied amber CRTs to upgrade carious
monochrome computers/terminals, and IIRC the M3/M4 was one of them. It's
very likely your machine had had the CRT replaced at some point. As I've
said several tiems, these mono CRTs are prrtty generic and thus it would
be easy to fit a non-original CRT with, say, a different phosphor.
-tony