Thordarson Meissner Inc. (1980): Standard Transformer Catalog TSC-1, 49 pp. Audio, power transformers. Zipped pdf file, size 6 MB.
Triad-Utrad (1987): Transformers, Inductors, Power Supplies, 47 pp. Zipped pdf file, size 10 MB.
Eugen Beyer (1969): Beyer Dynamic Acoustical Equipment for Every Purpose, 17 pp. Microphones, headphones, audio transformers, accessories. Zipped pdf file, size 5 MB.
Nortronics Company, Inc. (1966-70): Magnetic tape head catalogues. Instructions, general information, specifications, cross reference. Searchable pdf file, size 15 MB.
AG-440C Recorder/Reproducer Operation and Maintenance, Ampex Corporation Audio-Video Systems Division (1975). Zipped pdf files.
0. Table of Contents, size 260 KB
1. Description, size 1.6 MB
2. Installation, size 2.1 MB
3. Operating Instructions, size 1.4 MB
4. Theory of Operation, size 2.5 MB
5. Maintenance, size 6.5 MB
6a. Parts Lists and Schematics, size 780 KB
6b. System, size 270 KB
6c. Transport, size 2.2 MB
6d. Head Assemblies, size 1.2 MB
6e. Electronics, size 1.5 MB
6f. Console, size 190 KB
6g. Miscellaneous, size 240 KB
AG500 and AL500 Recorder/Reproducer Operation and Maintenance Manual, Ampex Corporation (1967). Zipped pdf files.
0. Table of Contents, size 240 KB
1. Description, size 950 KB
2. Installation, size 10.6 MB
3. Operation, size 760 KB
4. Transport Maintenance, size 1.5 MB
5. Electronic Maintenance, size 1.2 MB
6. Head Assembly, size 760 KB
7a. Parts Lists, size 1.0 MB
7b. Schematics, size 3.2 MB
Flutter Meter Model 8100/8100-W Instruction Manual, Micom Inc., 855 Commercial Street, Palo Alto, California 94303 (1967). The manufacturer was later called Data Measurements Corp. PDF file laboriously scanned by Tom Fine.
Micom_8100.pdf, size 4.2 MB
AG-440 and AG-445 Recorder and Reproducer Operation and Maintenance Manual, Ampex Corporation (1967). PDF files, scanned by Tom Fine.
1. Table of Contents, size 541 KB
2. Description, size 861 KB
3. Installation, size 810 KB
4. Operating Instructions, size 645 KB
5. Maintenance, size 7.0 MB
6. Theory of Operation, size 1.2 MB
7. Parts Lists and Drawings, size 5.2 MB
8. Modifications, size 581 KB
9. Index, size 2.2 MB
Packing Instructions, size 112 KB
Supplement for CCIR* Equalization Standards,
Models 300, 351 and 352.
Ampex Professional Products Company
*International Radio Consultative Committee TM2006 (January, 1960).
Ampex_CCIR.pdf, size 2.5 MB
Last update: 2005-01-21.