Reproductions of Ampex manuals and service bulletins. See separate Ampex Literature page for reproductions of brochures, catalogs, and other material published by Ampex not about specific machine models.
Schematics are arranged by general product type (e.g., tape deck, mixer) and then alphanumerically by model number.
The following are documents created by Jack Mullin. They appear here through the kind permission of Eve Mullin Collier, his daughter. These documents are copyright © 2001 by Eve Mullin Collier. They may not be reproduced elsewhere without the written permission of Eve Mullin Collier. My thanks to her for making them available and granting permission to reproduce them here.
Note well that performing the modification described below in Service Bulletin 25 will NOT yield the modern AES 17.5 microsecond equalization, but rather constant flux equalization. This is the equalization that Ampex used in 1949 to around 1952 on the Model 201 (an update of the Model 200A, running 15 and 30 ips) and on the Model 301 (compatible with the Model 201, also running 15 and 30 ips).
NOTE: The schematic above displays properly on some machines and does not display at all on others.
The MX-10 and MX-35 mixers are identical electronically. Only the knobs and faceplates differ.
The MX-10 and MX-35 mixers are identical electronically. Only the knobs and faceplates differ.
Created 18 Aug 98; revised 26 Jan 2003.