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Model 4 monitor question

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Jonathan Herr

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May 1, 2008, 4:37:04 PM5/1/08
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Is the monitor that's contained within a model 4 trs-80 the same as the one
that's in a model 3?

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marmotking

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May 1, 2008, 6:08:28 PM5/1/08
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I believe it is electrically the same. That is, I believe you can
connect a model 4 monitor to a model 3 and visa-versa. The model 4
had both white and green tubes, where the model 3 had only white. So,
they're not necessarily "identical" in every way. But I think you can
interchange them. You might take a look at the Model 3 and model 4
technical/service manuals and verify that. I remember having a model
3 that was upgraded to a model 4. The motherboard was swapped, but
the monitor (i.e. CRT and driver board) were left untouched.

Tom Lake

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May 1, 2008, 6:39:40 PM5/1/08
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"Jonathan Herr" <draco...@wi.rr.com> wrote in message
news:481a2c37$0$20205$4c36...@roadrunner.com...


> Is the monitor that's contained within a model 4 trs-80 the same as the
> one
> that's in a model 3?

The later green ones sure aren't. Even the white ones seem to be sharper to
me.

Tom Lake

marmotking

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May 1, 2008, 6:42:42 PM5/1/08
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Ya, the CRTs are certainly improved. But I think it's electrically
the same in that you can interchange them (with a difference in image
quality). I do like the green ones. Very nice picture.
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