Feedback/questions?
Let me know
.
Explore
▾
Phones
People
Timeline
Videos
PDFs
Images
Cards
Signs
Glossary
Play
About
1870s
1880s
1890s
1900s
1910s
1920s
1930s
1940s
1950s
1960s
1970s
1980s
Telephone Archive
Phones
|
People
|
Timeline
|
Videos
|
PDFs
|
Images
|
Cards
|
Signs
|
More
▾
Glossary
Play
About
People
Filter by:
Decade
Early Bell
Bell Labs
Business
Digital
Electronics
Math
Wireless
Telegraph
Switching
1870s
|
1880s
|
1890s
|
1900s
|
1910s
|
1920s
|
1930s
|
1940s
|
1950s
|
1960s
|
1970s
|
1980s
Sallie Pero Mead
Mathematician and wireless innovator
John Renshaw Carson
AT&T transmission engineering leader
Otto Julius Zobel
Filter design and theory pioneer
Sergei Alexander Schelkunoff
Waveguide propagation researcher
Russell Ohl
Pioneered P-N junctions for solar cells
George Clark Southworth
Waveguide developer and radio engineer
Clinton Davisson
Bell Labs Nobel prize winner
Homer Dudley
Speech synthesis inventor
Lloyd Espenschied
Coaxial cable co-inventor
Marion Cameron Gray
Discovered the Gray graph
Warren P. Mason
Distributed-element circuit pioneer
George Stibitz
Relay-based computer circuitry pioneer
Sosthenes Behn
ITT founder
Harvey Fletcher
Bell Lab physicist and speech expert
Alec Reeves
Pulse code modulation co-developer
Got suggestions for improving Telephone Archive?
Let me know
.
© 2026 Telephonearchive.com