Wow
I rejuv old '20's tubes all the time. I just do it the
old fashioned way. I'm not all that sure adding a PIC to
the process would mean much.
There is no such thing as a "safer & gentler" method.
You need to bring the cathode to a temperature that
is hot enough to bring new material to the surface.
This always has the chance of blowing the filament.
If done right, this can take from 2 to 20 minutes.
I doubt that running it for, exactly, 19.53 minutes is much
different than 20 minutes.
You run it for a while with the higher voltage then
measure the emission. You are the only one that can decide
when it is good enough. How does the PIC know that
the tube will be bright enough? It might even be over doing
it?? Should it be as bright as new?? Should the emission
value be the only judge??
Why is it that everyone thinks that a computer controlled
or LASER light is better than tried and proven methods.
I guess we all just read the labels and except what some
marketing fellow wrote. There are some things a computer
can do faster than me. It is a little more consistent
than me. But it can be consistently bad as well.
I guess if the computer blows it up, you can say that
it was destined to fail anyway.
Anyway, I thought you were talking about one of the old
fashioned tester/rejuvenators. They just had a meter needle
that was labeled red/yellow/green and a push button labeled
Rejuvenate. I guess I'm just out of date. The ones I've seen
didn't have a PIC in them.
Later
Dwight
>From: "Claude.W" <claudew(a)videotron.ca>
>
>Well...newer units use a PIC or similar (probably) and will monitor currents
>and will attempt a "safer & gentler" restoration/rejuv....and will do
>several other tests...
>
>Claude
>http://computer_collector.tripod.com
>
>----- Original Message -----
>From: "Dwight K. Elvey" <dwightk.elvey(a)amd.com>
>To: <cctalk(a)classiccmp.org>
>Sent: Thursday, October 24, 2002 4:53 PM
>Subject: Re: Looking for CRT tester/rejuvenator
>
>
>> >From: "Claude.W" <claudew(a)videotron.ca>
>> >
>> >Hi
>> >
>> >Looking for a "recent has possible" CRT tester/rejuvenator to do work on
>> >several older terminals, monitors and other equip with CRTs I have around
>> >here...
>> >
>> >Borrowing the high $ unit from work is not good for me....Carrying large
>> >monitors into work is not practical...
>> >
>> >Will trade or $s.
>> >
>> >Claude
>> >http://computer_collector.tripod.com
>> >
>> >
>>
>> Hi
>> They can be tested in place. Most rejuvenators just run the
>> filaments at about 1.5X to 2X the voltage while the rest of the
>> voltages are at zero. You can do this with a bench power supply.
>> Dwight
>>
>>
>
>
Does anyone have any information as to where I might
locate a Manual for an old ELAN EPROM
programmer/copier? If anyone has any leads I would
appreciate it.
Thanks
Kevin Hipp
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Back in the late 80's I worked in a lab at Michigan State with a dozen or so SunOS
Workstations, 2 Sun Fileservers, and a VAX8600 running Ultrix.
All the Sun machines had odd, short names:
bubo, mala, typh, pock, etc.
It turns out the admin had named them all after diseases, but the management thought
it was too much, so they all became 4-letter truncated diseases :)
The VAX was renamed from sniffles to eecae (an acronym) at the same time.
-Frank
Well the nubus kinda cards I would bet money on being QMS laser printer
boards, since the 2nd one even visibly says QMS on it...
Will J
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Does anyone have WordCraft written by Peter Dowson and Mike Lake (UK) for
the PET (crica 1978-1979) that included a "dongle" (software key) that
had to be plugged into one of the ports on the back of the PET in order
to work?
If so, please contact me directly at <sellam(a)vintage.org>.
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
* Old computing resources for business and academia at www.VintageTech.com *
> From: Sellam Ismail <foo(a)siconic.com>
> > I have the Omm program somewhere, I'm sure.
>
> What's that?
Sellam, you've never encountered (or been a part of) a bunch of chanting
hippies? You know, "Aum?"
Too young, I guess ;>)
Glen
0/0
If I am not for myself, who will be for me?
And if not now, when?
-- Pirkei Avot
I'm trying to help a guy on the electron microscope mailing list.
He has a LEO 360FE SEM, with a computer attached built by Radstone
Technology, better known for making military and space applications,
he says. It saves images on a Panasonic LF-7300 WORM drive,
but because he doesn't know the embedded OS, we can't guess at
the filesystem on the MO. Any ideas?
- John
> From: John Lawson <jpl15(a)panix.com>
> In the late 70s I remember seeing a tiny little ad in the back sections
> of Byte for a program for Passover.
>
> You plopped your Apple ][ down on the table next to the Charoses and
> roast lamb and wine - and the damn thing stepped you thru the Seder,
> songs and all.
ARRGH! It is NOT kosher to have an electrical appliance on the Seder
table!
Glen
0/0
If I am not for myself, who will be for me?
And if not now, when?
-- Pirkei Avot
Just think, since some of those are subs, (Thresher I know is, I believe
Scorpion is as well), why not name one machine DICASS? For those not in the
know, thats the AN/SSQ-62B Directional Command Activated Sonobuoy System...
And yes, the Navy really *does* call it DICASS... They're death to subs,
usually lead to a direct ping by a dipping sonar, and then the helicopter
crew shouts "weapon away!" and you get torpedoed/depth-charged/all of the
above!
Will J
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Well, just days after my post regarding XENIX for the Tandy 6000, its
keyboard seems to have gotten some ideas from Jeff's post on TRS-80 keyboard
problems. The 'D' key has taken sick. Every other key on the board works
flawlessly. But simply in the course of normal use, the 'D' key has stopped
working. I've "fixed" it to the best of my ability, but the problem
obviously goes beyond that. Now, that one key in itself wouldn't be so bad,
except that in order to get to the login prompt in XENIX, you have to type
CTRL-D. Which puts my 6000 in the very large paperweight category at the
moment. So my question is - Does anyone have a spare 6000 keyboard lying
around, or know where I might go about looking for one? I have enough
systems lying around waiting for parts to complete them, and I really don't
want this one to join them. Thanks.
--
Owen Robertson
