Antique radios, Old Time Radios
5A/157D
| Base |
Octal (Int.Octal, IO) K8A, USA 1935
Top contact with a cap.
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| Filament |
Vf 6.3 Volts / If 0.2 Ampere / Indirect / Specified voltage AND current AC/DC |
| Description |
Low hum and low microphony version
Typically Va=250, Vg2=100, -Vg1=2. Ia=3mA, gm=1.8mA/V.
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Dimensions (WHD)
incl. pins / tip |
32 x 100 x mm / 1.26 x 3.94 x inch |
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
- - Manufacturers Literature
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
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5A/157D: rtt
Anonymous 10 Collector
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Just Qvigstad
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Collection of
Collection of a member from FIN |
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