EPROM Erasers?

[Chuck Guzis]

On 15 Sep 2007 at 22:43, Zane H. Healy wrote:

> Is there anything I need to look out for when purchasing an EPROM 
> eraser?  As part of my current project I'm looking to purchase one.

At one time, there was a study to see how long it took to erase an 
EPROM (this was in the 27128 era) if left on a sunny windowsill with 
the window open (normal window glass blocks a fair amount of short-
wave UV).  IIRC, it was about 4 days.

At one time, clothes (tumble) dryers used to have a lamp called an 
"ozone lamp".  It had a normal medium screw base and IIRC, some made 
a simple EEPROM eraser from one by installing it in a socket inside 
of a large soup tin/can.  It apparently worked pretty well.

In short, anything that provides *short wave* UV will work.  So-
called "black lights" and tanning lamps aren't much good in that 
department.  But you can easily build your own, given the proper 
lamp.

Cheers,
Chuck