Antique radios, Old Time Radios
7550
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| Identical to |
7550
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| Similar
Tubes |
Multiple differences or of other kind:
7327
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| Base |
Subminiatur-8, with space 1/8, B8D
Wires only.
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| Was used by |
Military and/or Government |
| Filament |
Vf 6.3 Volts / If 0.525 Ampere / Indirect |
| Description |
Pulse rated premium 7327. Heater current raised to 525 milliamps and power dissipation uprated to 2 W per section.
GE and Sylvania.
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| Information source |
Essential Characteristics, GE 1973
Tube Lore (I)
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7550: Essential characteristics
Peter Hoddow
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Just Qvigstad
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