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RK57

Information - Help 
ID = 16319
       
Country:
United States of America (USA)
Brand: Raytheon Mfg. Co.; Cambridge, MA
Tube type:  Triode, vacuum   Power/Output 
Identical to RK57
Similar Tubes
Normally replaceable-slightly different:
  905

Base Jumbo 4-pin bayonet (1918) (Codex=By) Top contact with a cap.
Was used by Transmittertube (Radio)
Filament Vf 10 Volts / If 3.2 Ampere / Direct / Specified voltage AND current AC/DC
Dimensions (WHD)
incl. pins / tip
x 221 x 64 mm / x 8.70 x 2.52 inch
Information source Tube Lore (II)   p. 220
Babani, International Radio Tube Encyclopaedia   p. 210 & 211
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
 
raytheon_rk57_nw.jpg
RK57: Norm Wilson collection USA
Fin Stewart

 
rk57_so.png
RK57: ARRL Handbook 1972
Anonymous 10 Collector

 

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