>From: jpero_at_sympatico.ca
>
>From: "Dwight K. Elvey" <dwightk.elvey_at_amd.com>
>Subject: Re: Looking for CRT tester/rejuvenator
>To: cctalk_at_classiccmp.org
>Reply-to: cctalk_at_classiccmp.org
>Date: Thu, 24 Oct 2002 13:53:02 -0700 (PDT)
>
>>From: "Claude.W" <claudew_at_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.
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.
>
>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
>
Received on Thu Oct 24 2002 - 19:34:01 BST