Antique radios, Old Time Radios
4D22
|
Country:
United States of America (USA)
|
|
| Identical to |
4D22
= RK4D22
|
| Similar
Tubes |
Heater different:
4D32
|
| First Source
(s) |
05.Dec.1950 : Electron Tube Registration List 936
|
| Base |
(Codex=Mck)
Top contact with a cap.
|
| Filament |
Vf 25.2 Volts / If 0.8 Ampere / Indirect |
| Description |
All glass body with septar transmitting base. With 600 V supply, as class C amplifier, one tube can deliver 100 W RF power with 1.25 W grid drive.
Heater is center tapped and can be parallel connected for operation at 12.6 V, 0.8 A.
Sibley gives Raytheon as sole manufacturer.
Text in other
languages (may
differ)
|
Dimensions (WHD)
incl. pins / tip |
57 x 131 x mm / 2.24 x 5.16 x inch |
| Weight |
155 g / 5.47 oz |
| Tube prices |
1 Tube prices (visible for members
only)
|
| Information source |
Taschenbuch zum Röhren-Codex 1948/49 ARRL 1948
- - Manufacturers Literature
Tube Lore (I)
|
|
4D22: The Radio Amateurs Handbook 1976
Otto Frosinn
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4D22: Manufacturer's Literature
Emilio Ciardiello
More ...
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