Re: New GS owner questions

[Michael J. Mahon <mjmahon@aol.com>]

D Finnigan <dog_cow@macgui.com> wrote:
> Wholly Mindless wrote:
>> 
>> The good news is that the THUNK is what they all do - apparently this the
>> automatic degaussing feature that many crts had.
>> 
> 
> I had assumed that it was just the sound of high tension entering the CRT.
> 
> I may be mistaken, but I don't believe that the AppleColor RGB has a
> degausser.
> 
> I once was party to quite the shenanigan involving my GS monitor: I had been
> fooling about with a rare-earth metal magnet (liberated from a 1992-era
> Quantum hard disk drive), pulling the electron gun until rather a nasty
> blotch took up residence on the screen. Well of course it had no intentions
> of leaving!
> 
> The solution I devised was to lift the GS monitor and hold its screen flat
> against the screen of my Mac mini's 17" CRT. I powered on the larger
> monitor, whose automatic degausser was only too happy to assist with the GS
> monitor as well.
> 
> An amusing solution, I'm sure.

I think almost all color monitors (and TVs) came with degaussers--a
practical necessity on a planet with a magnetic field. ;-)  But the were
never intended to deal with strongly magnetized shadow masks, which is what
you get if you get close with a rare earth magnet. 

The "thunk" is the surge of AC through the degaussing coil surrounding the
bezel of the CRT. 

(HV won't make any noise except some induced static crackling, since the HV
comes up quite slowly.)

Windex applied to a paper towel works wonders, and *never* spray it on the
keyboard itself. 

-michael - NadaNet 3.1 and AppleCrate II: http://home.comcast.net/~mjmahon