Lot Of TWENTY-SIX Used TMS, Signetics, Fujitsu, Atmel Etc 27C256 EPROM IC's. Some of these have been erased but none have been tested. Typical used condition, some have a little tape goop or label remains in the window area. Some may have slightly bent pins. 

EPROM's are generally very reliable and rarely fail but if you happen to get a bad one from us we'll replace it of give you a partial refund. Thanks for understanding.

Studio Electronics, Inc. has served the pro audio industry since 1981.  We run one of the best equipped service repair shops in North America, with a vast parts inventory and an extensive library of documentation on all types of audio gear -- from the 1950’s to present day.  We are an authorized service center for several manufacturers, and offer expert service on all kinds of vintage pro audio gear including EMT, AMS, UREI, Pultec, Eventide, API, Neve, and many others.  We’ve installed over 250 studios -- everything from small project studios to large scale projects for firms like Warner Brothers and Disney.  We’re proud of our reputation in the pro audio community.  You can get more info about us by searching for Studio Electronics Burbank on the web.