24 Oct
2002
24 Oct
'02
3:34 p.m.
From: jpero(a)sympatico.ca
From: "Dwight K. Elvey" <dwightk.elvey(a)amd.com>
Subject: Re: Looking for CRT tester/rejuvenator
To: cctalk(a)classiccmp.org
Reply-to: cctalk(a)classiccmp.org
Date: Thu, 24 Oct 2002 13:53:02 -0700 (PDT)
You are right but it is still the brightness of the screen
that counts in the end. Measured emission is only part of
the end result. Tired phosphors can't be measured without
a photometer or the eye.
Shorts can be opened the same way. Charge a large capacitor
and hit it to to short. Again, a cheaper way.
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
Another reason for having rejuvenator it has ablitity to test
emissions and leakages (short), also can remove those shorts as well
besides just heating the heater HOTTER.
Secore brand is very good, get used one instead to keep cost down, be
prepared for sticker shock. Your best bet is buy up new TTL monitor
(mono) and stick the new tube into your old terminals is cheapest.
Otherwise for color CRT is same from used monitor except have to
spend lot of time convergencing them.
Convergence is an art.
Dwight
Cheers,
Wizard