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ID = 83171
United States of America (USA)
Brand: Chatham Electronics; Newark, NJ
Tube type:  Triple Triode   Power-supply 
  Late but very rare. ***
Identical to CH1068 = 7242
Similar Tubes
Other characteristic (electr. data):
Multiple differences or of other kind:

Filament Vf 6.3 Volts / If 7.5 Ampere / Indirect / Special heater – See text

Ruggedised power triple cathode triode designed as series regulator for power supplies. Similar to 7241 with higher mu. 100w total anode dissipation, 9 mu, current limited to 300mA per cathode, 900 mA total. Three cathodes with single grid and plate connections; hard glass bulb, 7 pin giant base. Anode is zirconium plated graphite and supported by ceramic insulators. Gold plated molybdenum wires are used in the grid structure.In many circuits the tube can replace four 5998 regulator tubes. Tube is equivalent to 7242 of Tung Sol and Sylvania

Dimensions (WHD)
incl. pins / tip
x 152 x 59 mm / x 5.98 x 2.32 inch
Weight 175 g / 6.17 oz
Information source -- Collector info (Sammler)   

7242_base_pins.png CH1068: Fin Stewart
Fin Stewart



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