Thursday, January 17, 2019

UV Eraser Arrives First

The EPROM UV Eraser arrived first.   Bought from a semi-local seller on Ebay, who then shipped it from his Amazon prime account.  (Didn't think to check Amazon for this) -- He made a couple dollars by drop-shipping the item.

I've located a few more EPROMs that have been kicking around the shop so I've added a few more 8k, 16k and 64k chips to be erased.

I've also learned that to determine the size of the EPROM, divide the last digits of the printed on the EPROM by 8.

2764  =  64 / 8 = 8k
27C128 = 128 / 8 = 16k
27512 = 512 / 8 = 64k

Dropping a few into the eraser today at 6.  We'll see when the programmer arrives if they still function.

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