Antique radios, Old Time Radios
7D4
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Country:
United States of America (USA)
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| Identical to |
7D4
= NU1018
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| Base |
Loctal-8, B8G (Sylvania, 1938)
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| Was used by |
Industrial |
| Filament |
Indirect / Specified voltage AC/DC |
| Description |
Sibley gives this code as equivalent to NU-1018 but never registered. A few tubes have been located but no electrical data known. "Tube Lore II" states that this tube "known to exist but abandoned early". NU1018 was a development type number.
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Dimensions (WHD)
incl. pins / tip |
x 71 x 26 mm / x 2.80 x 1.02 inch |
| Weight |
30 g / 1.06 oz |
| Tube prices |
1 Tube prices (visible for members
only)
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| Information source |
Tube Lore (II) p. 69 &159
Tube Lore (I)
Taschenbuch zum Röhren-Codex 1948/49
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren
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