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ID = 29667
United States of America (USA)
Brand: Raytheon Mfg. Co.; Cambridge, MA
Tube type:  Triode, vacuum 
Identical to CK6247
Similar Tubes
Normally replaceable-slightly different:

Base Subminiatur-8, with space 1/8, B8D
Filament Vf 6.3 Volts / If 0.2 Ampere / Indirect
Description Very low microphonics triode: less tha 1 mV across 10Kohm plate resistor with 15G, 40Hz vibrational acceleration. 
Dimensions (WHD)
incl. pins / tip
10 x 34 x mm / 0.39 x 1.34 x inch
Information source Universal Vade-Mecum, Electron Valves and Semiconductor Devices   group 121
-- Original prospect or advert   Electronics - Dec. 1953
Karl-Heinz Entrich

CK6247: rtt
Michael Schlör


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