SIEMENS GRI 2 Sendetriode
Power triode
Triode de puissance
			  Equivalent to Tungsram OQQ500/3000.
              The GRI was used in the Siemens Ultratherm Diathermy Machine (ca. 1945).
              Fil. = 22 V @ 12 A (Tungsten)
              Ampl. Factor = 50
              Plate resistance = 21000 ohms
              Mu = 2400
              Plate V = 5000 V max
              Peak AC v = 4200 V max
              Plate dissipation = 500 W
			   
			  
			  Hauteur • Height • Höhe : 42 cm • 1' - 4" 1/2
              Diamètre • Diameter • Durchmesser : 11,5 cm • 4" 1/2
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