Antique radios, Old Time Radios
1M1
Country:
Europe
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Identical to |
1M1
= DM71
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Base |
Subminiatur-8, with space 1/8, B8D
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Filament |
Vf 1.4 Volts / If 0.025 Ampere / Direct / Battery = |
Description |
Mazda branded.
Target Volts 90
Target Current 0.25mA
Grid Voltage change for full indication = 13.5
Target Volts 60
Target Current 0.12 mA
Grid Voltage change for full indication = 8.0
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Information source |
Röhren-Taschen-Tabelle, (Franzis RTT)
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1M1: Mullard - original papers
Michael Poll
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Just Qvigstad
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1M1: Original data sheet
Michael Poll
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