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224A

Information - Help 
ID = 20549
       
Country:
United States of America (USA)
Brand:
Tube type:  Screen-grid Tetrode 
Identical to 224A = 24A = ER224A = LS224A
Similar Tubes
Normally replaceable-slightly different:
  38024

Filament Vf 2.5 Volts / If 1.75 Ampere / Indirect
Tube prices 1 Tube prices (visible for members only)
Literature Tube Lore   
 
224_a.jpg
224A: scc
Christian Schaufelberger

 
224a_so.png
224A: arrl handbook 1972
Michael Schlör

 

Usage in Models 1= 1931?? ; 12= 1931 ; 10= 1932? ; 21= 1932

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):44



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