DEVISED IN 1911-13 THE FIRST VACUUM TUBE AMPLIFIER
AND OSCILLATOR. WORLD-WIDE DEVELOPMENTS BAS-
ED ON THIS RESEARCH LED TO MODERN RADIO COM-
MUNICATION, TELEVISION AND THE ELECTRONICS AGE.
CALIFORNIA REGISTERED
HISTORICAL LANDMARK NO. 836
PLAQUE PLACED BY THE STATE DEPARTMENT OF PARKS
AND RECREATION IN COOPERATION WITH THE CITY OF
PALO ALTO AND THE PALO ALTO HISTORICAL ASSOCIATION.
MAY 2, 1970
Licensing
Public domainPublic domainfalsefalse
This work has been released into the public domain by its author, Ethics2med. This applies worldwide.
In some countries this may not be legally possible; if so: Ethics2med grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.