Tube-number record
43
0 archive entries
43 is a tube type in the TubeDatabase archive (class: Power Pentode). Recorded specifications: construction Pentode, base Phenolic, socket 6-pin, maximum plate voltage 160 V, and maximum plate dissipation 8.5 W. The archive does not yet hold a photographed example of this type.
ClassPower Pentode
Base6-pin
Filament25 V @ 300 mA
Construction
Primary TypePentode
EnvelopeST-12
Base MaterialPhenolic
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated cathode
Absolute Maximum Ratings
Plate Voltage160 V
Plate Dissipation8.5 W
Grid 2 Voltage136 V
H-C Voltage90 V
Audio Performance
Typical THD9%
Power Output2.1 W
Key Features
- Power Amplifier Pentode
- 25-Volt Heater Type
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier | 135 V | 2450 | 45000 | 110 | 37 mA |
| Maximum Ratings | 160 V | — | — | — | — |
Application Notes
Used primarily in AC/DC radio receivers.
Datasheets
Datasheet: 43.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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