Antique radios, Old Time Radios
A4388
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Country:
United States of America (USA)
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| Identical to |
A4388
= 50B5
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| Filament |
Vf 50 Volts / If 0.15 Ampere / Indirect |
| Information source |
Universal Vade-Mecum, Electron Valves and Semiconductor Devices 235
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A4388: ARRL Handbook 1972
Anonymous 10 Collector
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