Antique radios, Old Time Radios
A247
|
Country:
France
|
|
| Identical to |
A247
= 47
= G-47
|
| Base |
UY-Base, 5 Pins (USA, April 1927)
|
| Filament |
Vf 2.5 Volts / If 1.75 Ampere / Direct / Parallel, (AC/DC) |
| Literature |
Babani, International Radio Tube Encyclopaedia
|
|
|
 |
|
A247: Collection Patrice ZEISSLOFF
Patrice Zeissloff
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| |
|
A247: ARRL Handbook 1972
Michael Schlör
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