Chuck(G)
25k Member
Clearly made to be viewed with rose-colored glasses...
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Commodore PET 2001-8C with blue phosphor screen?
- Thread starter bleep
- Start date
bleep
Member
I think so too, it being an insert or overlay of some sort. Especially since the screen still looks blue when it's turned off. Shining a light on the screen, like suggested in this thread, is something I can try next.
When I go back to the attic I'll open the back panel and take a photo of what's there. Give me a couple of days.
@VERAULT, I now see what you mean. It looks indeed off on that photo. But if you check IMG_1277, it looks like other PETs. Unless I'm not understanding what you mean about the bezel?
When I go back to the attic I'll open the back panel and take a photo of what's there. Give me a couple of days.
@VERAULT, I now see what you mean. It looks indeed off on that photo. But if you check IMG_1277, it looks like other PETs. Unless I'm not understanding what you mean about the bezel?
Hugo Holden
Veteran Member
Yes, now it's obvious that it's a blue filter. Probably from the initial photos , the clue was on higher brightness it looked whiter. Though it's not certain if it was the photo exposure, but the effect is similar. If it was a true P11 phosphor CRT, the color does not change with the intensity of the beam or the camera exposure I would have expected. Probably the op would have identified the blue filter , but not been able to responds due being moderated.
As I mentioned an electromagnetically deflected Blue CRT would be a pretty rare animal. All the P11 CRT's I have laid my eyes on are scope style electrostatically deflected CRT's.
As I mentioned an electromagnetically deflected Blue CRT would be a pretty rare animal. All the P11 CRT's I have laid my eyes on are scope style electrostatically deflected CRT's.
bleep
Member
I'm sorry if I threw anyone off with calling it a phosphor screen -- I wanted to distinguish between the "blue bevel" screen and an actual blue screen!
bleep
Member
I look some new photos of the screen with the flash on, and the inside of the monitor: https://pixelambacht.nl/dump/pet/2001-8c/ (IMG_1339.JPG to IMG_1345.JPG).
Here's the screen with the flash shining on it:
And a shot of the inside:
More pictures in the link above.
Here's the screen with the flash shining on it:
And a shot of the inside:
More pictures in the link above.
bleep
Member
(Sorry for posting another message, I can't seem to edit my previous ones -- likely because I was still in moderation when I posted those?)
But according to this thread, the CRT screen is a regular white, M24-302W (White, US equivalent P4) to be specific: http://cbm-hackers.2304266.n4.nabble.com/PET-2001-phosphor-blue-or-white-td4661559.html
Now I still wonder if this was a custom screen filter, or something Commodore (or another supplier) offered for customers?
But according to this thread, the CRT screen is a regular white, M24-302W (White, US equivalent P4) to be specific: http://cbm-hackers.2304266.n4.nabble.com/PET-2001-phosphor-blue-or-white-td4661559.html
Now I still wonder if this was a custom screen filter, or something Commodore (or another supplier) offered for customers?
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