Re. Blankety blank blank.

[Clare Snyder]

Rich Mauruschat wrote:
> 
> >Yes, I know this is crude.  Yes, I know an eraser is the
> >proper way.  Yes I'm going to buy one.  In the mean time,
> >why won't these chips erase?
> 
> >Shannen
> 
> Shannen,
> >From my own experience, I think your right - it's a wavelength thing; not
> any old UV will do to erase eproms. I once had a load of eproms to erase
> (150!) and tried using a UV exposure box for PCB artwork to do them all at
> once..... no amount of time in there seemed to have any effect. Ended up
> doing them 6 at a time in a proper eraser, 10 minutes no problem. I'm not
> sure of the details of the required wavelengths, anyone got anything to
> offer on this one??
> 
> Rich.
Don't know the wavelength, but I use a G4511 germicidal bulb - works
just fine.
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                           Clare Snyder
                         Waterloo, Ontario