0001193125-08-233843 POS AM 1 20081112 20081112 AMPEX CORP /DE/ 0000887433 3663 133667696 DE 1231 POS AM 33 333-48469 081181419 1228 DOUGLAS AVENUE 1228 DOUGLAS AVENUE REDWOOD CITY CA 94063-3117 650-367-2011 1228 DOUGLAS AVENUE 1228 DOUGLAS AVENUE REDWOOD CITY CA 94063-3117 AMPEX INC /DE/ 19940505 AMPEX INC 19930328 POS AM 1 dposam.htm POST EFFECTIVE AMENDMENT NO. 1 TO FORM S-4