Tube-number record
SP141
0 archive entries
SP141 is a tube type in the TubeDatabase archive (class: H.F. Pentode). Recorded specifications: brand Mazda (Ediswan), construction Pentode, base Bakelite, socket Octal, and maximum plate voltage 90 V. The archive does not yet hold a photographed example of this type.
BrandMazda (Ediswan)
ClassH.F. Pentode
BaseOctal
Construction
Primary TypePentode
EnvelopeGlass
Base MaterialBakelite
SectionsSingle
Filament / Heater
MaterialDirectly Heated
Absolute Maximum Ratings
Plate Voltage90 V
Grid 2 Voltage90 V
Audio Performance
Key Features
- Dry Cell battery operation
- Metallised envelope
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation (Condition 1) | 83 V | 750 | — | — | 1.55 mA |
| Typical Operation (Condition 2) | 90 V | 800 | — | — | 1.7 mA |
| Rating Condition | 90 V | 900 | — | — | — |
Application Notes
Designed for satisfactory operation from a 1.5 volt-cell without additional resistance.
Datasheets
Datasheet: SP141.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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