Antique radios, Old Time Radios
HF201
Country:
United States of America (USA)
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Identical to |
HF201
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Similar
Tubes |
Normally replaceable-slightly different:
HF201A
Different connections:
HF200
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Base |
Jumbo 4-pin bayonet (1918)
Top contact with a cap.
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Was used by |
Transmittertube (Radio) |
Filament |
Vf 10.5 Volts / If 4 Ampere / Direct / Specified voltage AC/DC |
Description |
Jumbo 4-pin bayonet base. Similar to HF200 with grid out from the base.
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Information source |
Universal Vade-Mecum, Electron Valves and Semiconductor Devices group 380
- - Manufacturers Literature
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HF201: Manufacturer's Literature
Emilio Ciardiello
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Just Qvigstad
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HF201: My schematic collection.
Pier Antonio Aluffi
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