On 10/21/2005 at 3:28 PM Joe R. wrote: > 16 pin ZIF socket. Brain Fart. Sorry. Quite possibly a bipolar prom programmer then--perhaps 82S23-type. Unlike C/NMOS EPROMs, much easier to program. Very popular with the phone phreaks, as this device (or the 82S123 tristate version) is used to hold ESN/MIN information in older cellphones. Cheers, Chuck