The Adept wrote:
>
> Yeah, I've got a munged up Model 4 that I could pull the CRT out of (the CRT
> works) but I'd rather not cut wires and resolder cuz I'd like to get the ol'
> Model 4 fixed next. ;) I may pirate the CRT out of one of my old Qume q102
> terminals just to get the 12 back on its feet. Thanks for the input though!
>
> Cheers,
>
> Dan
I don't know where you are geographically, but there should be
plenty of tubes around that will fit in that Mod 12. Lots of
terminals used equivalent tubes. Hell, I'd offer one of mine,
but I'm waiting for the tube in my Model II to die so I can have
a green screen in the grey monster. (Is there _any_ component
in a TRS-80 Model II that can die [or be killed] aside from the
static electricically sensitive 4164 RAM chips or the head-load
pads in the floppy drives [from friction]? If there is, I
haven't found it in almost twenty years.)
>
> Tony Duell wrote:
>
> > > ps -- I'm currently in dire need of a CRT for a TRS-80 Model 12.
> >
> > Does this machine obey ARD's law of CRT's I wonder....
> >
> > Years ago when I was fixing 12" mono monitors and video terminals I
> > discovered that about 95% of all 12" CRTs were one of 2 types :
> >
> > a) narrow neck, modified B7G base, 12V heater
> > b) wide neck, B8H base, 6.3V heater.
> >
> > And that all CRTs within either group had essentially the same pinout and
> > would work at about the same voltages. So you could just swap them about.
> >
> > Worth trying, especially as a lot of PC MDA monitors contain type (a) :-)...
> >
> > >
> > >
> >
> > -tony
--
Ward Griffiths
Dylan: How many years must some people exist,
before they're allowed to be free?
WDG3rd: If they "must" exist until they're "allowed",
they'll never be free.
Received on Thu Mar 19 1998 - 02:48:51 GMT