Re: Bringing up to snuff a Tek 465M


 

Does anyone know if the "bleed" on the screen is normal for a CRT screen like the one on the
465M? Here's a video of mine as I turn up the intensity:
Yes, it is perfectly normal. It is partly caused by normal scattering, partly (mostly the halo-like disc) by the scan expansion mesh that these CRT's use to increase the horizontal and vertical deviation sensitivity (and possibly reduce the deviation sensitivity to PDA acceleration voltage).
You'll find that intensity is fully satisfactory in almost all cases long before this effect becomes disturbing. Standard good practice is to not increase intensity beyond a level that permits good visibility, for a number of reasons.

Raymond

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