Antique radios, Old Time Radios
8561
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| Tube type: |
Transmitting Tetrode, air cooled UHF |
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| Identical to |
8561
= 4CX300Y
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| Similar
Tubes |
Different maximum ratings:
8167
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| Base |
SPECIAL TUBEBASE in general
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| Filament |
Vf 6 Volts / If 3.5 Ampere / Indirect |
| Description |
Forced air cooling ceramic tetrode capable of operation up to 500MHz. Breech-block base; special socket required, Eimac SK-200 or equivalent.
Similar to 4CX300A/8167 uprated to 400W.
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Dimensions (WHD)
incl. pins / tip |
42 x 62 x mm / 1.65 x 2.44 x inch |
| Weight |
95 g / 3.35 oz |
| Information source |
Tube Lore (I)
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Collection of
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