Antique radios, Old Time Radios
3B4
Country:
United States of America (USA)
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Identical to |
3B4
= DL98
= CV2240
= HD30
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Similar
Tubes |
Other class quality (otherwise equal):
3B4WA
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First Source
(s) |
30.Apr.1948 : Electron Tube Registration List
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Base |
Miniatur-7-Pin-Base B7G, USA 1940
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Was used by |
Transmittertube (Radio) |
Filament |
Vf 2.5 Volts / If 0.165 Ampere / Direct / Battery = |
Description |
Instantaneous heating beam power amplifier intended for use as oscillator or frequency multiplier in VHF battery-operated transmitting sets. Up to 100MHz full rating.
Center-tapped filament allows operation at 1.25V, 330mA.
Text in other
languages (may
differ)
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Dimensions (WHD) incl. pins / tip |
x 54 x 19 mm / x 2.13 x 0.75 inch |
Tube prices |
5 Tube prices (visible for members
only)
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Information source |
Essential Characteristics, GE 1973
Universal Vade-Mecum, Electron Valves and Semiconductor Devices Section 201, p. 393
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3B4: Ausschnitt aus PRC-6-Service
Karl-Heinz Entrich † 7.21
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3B4: Manufacturer's Literature
Emilio Ciardiello
More ...
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Just Qvigstad
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3B4: Ratheiser Röhrenhandbuch
Heinz Höger
More ...
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):16
Collection of
Collection of a member from FIN
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Forum contributions about this tube
3B4
Threads: 1 | Posts: 1
3B4
End of forum contributions about this tube
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