Antique radios, Old Time Radios
DM21
Country:
Netherlands
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Identical to |
DM21
= MDM21
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Similar
Tubes |
Other base:
DM21_9pin
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First year |
Apr.1940
Tube leaflet collection E.Erb Philips-Archive, Book 3 = April
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First Source
(s) |
Apr.1940 : Daten und Schaltungen moderner ... Röhren; Philips # 3
Mar.1940 : Philips Bulletin # D78
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Base |
Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Vo)
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Filament |
Vf 1.4 Volts / If 0.025 Ampere / Direct / Battery = |
Tube prices |
1 Tube prices (visible for members
only)
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Information source |
Taschenbuch zum Röhren-Codex 1948/49
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DM21: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
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DM21: Telefunken Werkstattbuch
Wolfgang Bauer
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Just Qvigstad
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DM21: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector
More ...
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2
Collection of
Collection of a member from FIN Collection of a member from SK
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