Equipment Museum
Museum of Magnetic Sound Recording - interview with Martin Theophilus
The Marconi-Stille magnetic recorder-reproducer.
Tape recorder - Wikipedia
Museum of Magnetic Sound Recording
Collection History Museum of Magnetic Sound Recording
AMPEX Model 200/200A Tape Machine
Home Museum of Magnetic Sound Recording
Home Museum of Magnetic Sound Recording
Collection History Museum of Magnetic Sound Recording
Culture of Innovation and Technical Achievement at Ampex - StorageNewsletter