How do you tell an over-erased EPROM? I finally have my programmer and eraser, and just tried erasing 6 EPROM's. Four erased just fine, and two are showing weird patterns of alternating blocks of 04/06 and 14/16. Zane -- | Zane H. Healy | UNIX Systems Administrator | | healyzh at aracnet.com (primary) | OpenVMS Enthusiast | | MONK::HEALYZH (DECnet) | Classic Computer Collector | +----------------------------------+----------------------------+ | Empire of the Petal Throne and Traveller Role Playing, | | PDP-10 Emulation and Zane's Computer Museum. | | http://www.aracnet.com/~healyzh/ |