Antique radios, Old Time Radios
D7-221GH
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Country:
Germany
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Brand:
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| Tube type: |
Oscilloscope CRT, picture tube Indication |
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| Identical to |
D7-221GH
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| Similar
Tubes |
Heater different:
D7-220GH
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| Base |
SPECIAL TUBEBASE in general
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| Was used by |
Technology / Measurement |
| Filament |
Vf 6.3 Volts / If 0.095 Ampere / Indirect / Specified voltage AC/DC |
| Description |
Wie D7-220GH, jedoch mit Sparheizung.
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Dimensions (WHD)
incl. pins / tip |
72 x 49 x 225 mm / 2.83 x 1.93 x 8.86 inch |
| Weight |
350 g / 12.35 oz |
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D7-221GH: Originalunterlagen
Helmut Post
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D7-221GH: Valvo Handbuch 1976/77
Georg Richter
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
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