You searched for Postal Code: 15221
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historicalmarkerproject/markers/HM1HGT_frank-conrad_Pittsburgh-PA.html
At his garage workshop here in 1919-1920, Conrad made broadcasts over his amateur station 8XK, which introduced the concept of commercial radio and led to the start of KDKA. For 37 years a Westinghouse engineer, he held over 200 patents.
historicalmarkerproject/markers/HM18MC_family-court-facility_Pittsburgh-PA.html
Historic LandmarkFamily Court Facility, Court of Common PleasOriginally Allegheny County JailHenry Hobson Richardson, architect1884-86
historicalmarkerproject/markers/HMVO9_westinghouse-atom-smasher_Pittsburgh-PA.html
The world's 1st industrial Van de Graaff generator was created by Westinghouse Research Labs in 1937 as an early experiment with atomic energy. The 5-story pear-shaped structure is located here. The company remained active in establishing US leade…
historicalmarkerproject/markers/HMRE2_the-pittsburgh-agreement_Wilkinsburg-PA.html
Signed here, on May 31, 1918, this document declared the intent of Czechs and Slovaks to form a new democratic nation in Europe, free from outside rule. Later that year, Thomas Garrigue Masaryk, an author of the agreement, became the 1st president…
historicalmarkerproject/markers/HMRE1_pioneer-short-wave-station_Pittsburgh-PA.html
On this site in 1923, Westinghouse opened a special radio facility to experiment with long-distance transmissions. Led by Frank Conrad, engineers here demonstrated the vital role of high-frequency short waves in sending broadcasts around the world.