> hehe. In the early days when I was unable to get a UV lamp 
> of the right
> frequency,
> we took a box of 'em outside into the hot Texas sun. By 
> early afternoon,
> they were
> ready to go...
>
> Ah those were the days....

We used a windowsill behind glass.
Still enough UV to work in a few hours.
BUT it was smooth brick.
We got a high failure rate.
Placing them on an Al plate or in conductive foam dropped 
failure rate to zero.
I presumed ESD damage from handling due to being nice and 
dry and warm rather than actual erasing time failures, but 
don't know.


        Russell

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