23 Aug
2007
23 Aug
'07
2:32 a.m.
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.
Bob
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
well.
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:
<http://dundas-mac.caltech.edu/~dundas/retro/DEC%20Docs/Tektronix/070-
1404-00.pdf>
John
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
4014.....
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).
So long,
--
Arno Kletzander
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