Re: Happy Fun Band...

From: John Robertson <jrr_at_flippers.com>
Date: Sat Dec 11 1999 - 11:56:16 EST

I hope this is a joke...replacing the band on a tube would be extremely
dangerous in real life. The manufacturer of the tube has special tests to
make sure it is done correctly, I really doubt one could be successful in a
home environment, and would be reluctant to be within about sixty feet of a
picture tube so modified...might not happen immediately (BANG) but sooner
or later...I hope you carry liability insurance for the damage this will do
when one explodes!

John...

(who was wrong about the risk of lethality of the HV stored in the tube.)

At 09:32 AM 12/11/1999 -0500, you wrote:
>Disclaimer: Don't anyone go out and do anything suggested below:
>
>The way I do tube repair is this.
>
>1. first put on all the safety equipment - face masks, gloves, etc..., then
>carefully puncture the little tip at the end of the tube, but with some
>vacuum gum on the puncture area.
>2. through a small capillary tube, allow the vacuum to fill with air.
>3. Next, safely remove the band and replace the ears, and make sure the
>strap is tight.
>4. When that's done, pull vacuum on the tube with a good vacuum pump (which
>can be made from and old refrigerator compressor.)
>5.With that done, carefully remove the capillary tube, but leaving the gum
>to seal the opening.
>6.Now, power it up and it should work fine now, but with the corrected
>mounting tabs.
>
>If the picture becomes a little dim or blurred over time, go back to step 4
>
>Note that while the tube vacuum is released, you can do all kinds of neat
>things. My favorite is this:
>If the tube has bad gun(s), carefully scribe the perimeter near the end of
>the neck then tap the end to release the guns and socket.
>Now you can remove the electron guns and play with them and either fix them
>or change them out with a working set from another monitor.
>When replacing them be sure to pay close attention to alignment as it is
>critical. Seal the cut with vacuum gum and a strip of duct tape. and pump it
>down.
>
>If you feel daring, you can also scribe the edge of the tube so you can fix
>or replace the shadow mask.

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Received on Sat Dec 11 10:55:13 1999

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