Antique radios, Old Time Radios
898
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Country:
United States of America (USA)
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| Identical to |
898
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| Similar
Tubes |
Heater different:
862
; 898B
Differences not known by us:
898A
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| Base |
TRANSMITTING & Power-TUBES/VALVES in gen
Sidecontact.
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| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 16.5 Volts / If 420 Ampere / Direct |
| Description |
External anode, water cooled triode for AM broadcast service. 100KW anode dissipation. 1.6MHz full ratings. Similar to 862 with six-phase pure tungsten filament, 16.5V, 70A per phase. Since 1936, 898 took the place of 862 in new transmitters. Due to different heater connections, the two tubes were not directly interchangeable; both were offered for 750 USD in 1945.
Federal, GE, RCA, Westinghouse known sources.
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Dimensions (WHD)
incl. pins / tip |
150 x 1534 x 270 mm / 5.91 x 60.39 x 10.63 inch |
| Weight |
13500 g / 476.20 oz |
| Information source |
Tube Lore (II) p. 81
Tube Lore (I)
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49
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