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RX222

Information - Help 
ID = 70425
       
Country:
United States of America (USA)
Brand: Raytheon Mfg. Co.; Cambridge, MA
Developer: Common type USA tube/semicond. 
Tube type:  Screen-grid Tetrode   RF/IF-Stage 
  Ca. 1925 up to 1945 rare.
Identical to RX222
Similar Tubes
Normally replaceable-slightly different:
  22 ; 222 ; X222

Base UX-Base (4 Pins (2 thick, USA 1924, UX) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 3.3 Volts / If 0.13 Ampere / Direct / Battery =
Information source -- Collector info (Sammler)   
 
rx222_ray_o_vac.jpg
RX222: GP
George Papaiz

 
222_ux.png
RX222: Fin Stewart
Fin Stewart

 

from Just Qvigstad


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