Antique radios, Old Time Radios
4-400C
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| Tube type: |
Transmitting Tetrode, air cooled VHF |
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| Identical to |
4-400C
= PL-6775
= 6775
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| Similar
Tubes |
Other shape (e.g. bulb type):
4-400A
; 4-400B
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| Base |
SPECIAL TUBEBASE in general
Top contact with a cap.
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| Filament |
Vf 5 Volts / If 14.5 Ampere / Direct |
| Description |
4-400C, also known as JEDEC 6775, is a ruggedized long-life version of 4-400A/8438, with smaller plate structure, lower filament temperature and one-piece plate cap.
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Dimensions (WHD)
incl. pins / tip |
84 x 145 x mm / 3.31 x 5.71 x inch |
| Weight |
236 g / 8.32 oz |
| Information source |
-- Collector info (Sammler)
Tube Lore (I)
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4-400C: Fin Stewart
Fin Stewart
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Collection of
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