Tektronix 4002 Terminal found
Arno_1983 at gmx.de
Thu Aug 23 04:32:21 CDT 2007
Bob Rosenbloom <bobalan at sbcglobal.net> wrote:
> After you check out the power supply and reform/replace any bad caps,
> and power it on, the screen should slowly turn fully green. Leave it
> this way for 5 min. or so before you issue any erase commands (keyboard
> or program). This procedure reduces the ion content in the CRT and
> maximizes the CRT life. I got this from a Tektronix service manual
> for the 611 storage display. It says to do this anytime it's been off
> for two weeks or more. I have been following this for 15 years now on my
> 611 (built in 1971) and it's still working great.
Hey, thank you for that useful hint! That's just the kind of stuff I wanted to know. (This one's particularly nasty because I wouldn't even have noticed an ill effect in the beginning, nevertheless harming the equipment...)
"John A. Dundas III" <dundas at caltech.edu> wrote:
> I used one of those both at JPL and Caltech in the '70s. Worked quite
> I don't have any service information but I did scan the user manual
> that I have. Al or others may have other scans or additional
> information. For my scan, see:
Which seems to be down currently (produces a "Server not found" error) and can't even be found archived anywhere due to site policies (robots.txt). Thank you for scanning anyway, I'm looking forward to when it becomes available again - most probably a good resource for starters.
Jos Dreesen / Marian Capel <jos.mar at bluewin.ch> wrote:
> When you come over to fetch that uVAX II you can have a go at my Tek
> Jos Dreesen
No, I haven't forgotten it...it looks as if we could manage it 22./23.09, but that's not fixed yet (haven't reached our relatives where we'd be staying overnight).
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