Antique radios, Old Time Radios
D7-220GH
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Country:
Germany
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| Identical to |
D7-220GH
= 17D7GH
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| Similar
Tubes |
Heater different:
D7-221GH
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| Base |
SPECIAL TUBEBASE in general
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| Was used by |
Technology / Measurement |
| Filament |
Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AC/DC |
| Description |
Rechteckschirm, plan, für Service-Oszillografen und Sichtgeräte.
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D7-220GH: Valvo Handbuch 1976/77
Georg Richter
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D7-220GH: Valvo Handbuch 1976/77
Georg Richter
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