QSL 2001 - Historical Radio Technology



Spark Transmitter
(1916)
Prague


Electromagnetic Speaker in wooden cabinet
(1925)

 


Four-Valve Battery-Operated Receiver
(1924-26)
Czechoslovakia

Etavox Electromagnetic Speaker
(1927)

 


Griffith Radio Receiver
(1930)
USA

Technowatt Carbon Microphone
(1930-1940)

 


Tesla 4002 A TV and Radio Combo
(1954-57)
Czechoslovakia

Tesla "Korespondent" Dictaphone
(1960)
Czechoslovakia

 

These QSL cards show items from the collections of the National Technical Museum, Prague.

   QSL cards

Each Sunday, participants will be able to vote in our new series Hit of the Century, covering 100 years of music in Czechoslovakia and the Czech Republic. (More)