logos remain property of their respective companies
logos A-H
logos I-Z

James Millen Manufacturing Company

The Marconi Company (UK, 1960s)

James Millen Manufacturing Company

Lestein Corp. of America (1930)

Manson Laboratories (1950s)

Mullard
(Thanks to John Kaesehagen)

National Union Radio Corp. (1929)

Perryman Radio Tubes (1930s)

Philco (1930)

Radio Corporation of America
(pre-70s)

The Reddy Kilowatt Corporation

Robotron Corporation
(1950s)

Shure Brothers
(1950s)

Sovtek
(Old USSR)

Speed
(Cable Radio Tube Corporation, 1930)
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Sylvania Electric
(Thanks to Reid Brandon)

Tannoy
(Slang: "Tannoy Man" = PA Announcer)

Tannoy
(60s)

Tannoy
(Dual Concentric, Current)

Technical Materiel Corporation

Telefunken
("Sparks At A Distance!")

Tennessee Valley Authority
(1930s, still in use)

Vakuumtechnik Gmbh., Erlangen
(Thanks to John Kaesehagen)

Valvo
(Courtesy Peter Kostov)

VEB Funkwerk Erfurt
German Democratic Republic
(Courtesy Andreas Grosser)

VEB Röhrenwerk Mühlhausen
German Democratic Republic
(Courtesy Peter Kostov)

VEB Röhrenwerk Neuhaus (before 1963)
German Democratic Republic
(Courtesy Andreas Grosser)

VEB Röhrenwerk Neuhaus (after 1963)
German Democratic Republic
(Courtesy Peter Kostov)

VEB Werk Fur Fernsehelektronik, Berlin
German Democratic Republic
(Courtesy Andreas Grosser)

The Vibroplex Company
(Lightning Bug, 60s)

The Victoreen Instrument Company
(1964)

Westates Electronics Corporation

Zenith Radio Corporation
(1923)
logos A-H
(when extant)
logos a-h
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