Re: PET 2001 phosphor - blue or white?

From: Mike Stein <*mhs.stein_at_gmail.com*> Date: Tue, 13 Sep 2016 13:56:08 -0400 Message-ID: <393E7262E67A40C497CFF8A47091BE0E@310e2> · mhs.stein_at_gmail.com

----- Original Message ----- 
From: "Anders Carlsson" <anders.carlsson@sfks.se>
To: <cbm-hackers@musoftware.de>
Sent: Tuesday, September 13, 2016 1:07 PM
Subject: Re: PET 2001 phosphor - blue or white?

> William Degnan wrote::
> 
>> this?
>> http://vintagecomputer.net/commodore/2001-8/2001-8_sn20343.jpg
> Yes, that is the model I am talking about.
> 
> This is a slightly newer model with black trim instead of blue trim, 
> that illustrates what I'm asking about:
> 
> http://greatnorthweb.com/bioterror!/PET_MapBeforeDOA.jpg
> 
> Best regards
> 
> Anders Carlsson

==============================
Can't say I've ever seen a stock PET with blue phosphor, or graphics like that for that matter...

It was common practice in those days to put a coloured gel in front of the white on black screen, which might be the case here.

FWIW, my 2001 PETs have these white (original) and green (later) Amperex CRT types:

M24-302W (White, US equivalent P4)
M24-302GH (Green, US equivalent P31)

Don't know if there's a correlation, but it seems that the machines with the blue bezel and nameplate generally used the white phosphor tubes, while the later models with the black bezel used green screens.

m

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