Tube-number record
VP.23
0 archive entries
VP.23 is a tube type in the TubeDatabase archive (class: Variable-mu H.F. Pentode). Recorded specifications: brand Ediswan Mazda, construction Pentode, socket Octal, and maximum plate voltage 150 V. The archive does not yet hold a photographed example of this type.
BrandEdiswan Mazda
ClassVariable-mu H.F. Pentode
BaseOctal
Construction
Primary TypePentode
EnvelopeMetallised
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage150 V
Grid 2 Voltage150 V
Audio Performance
Key Features
- Battery Economy
- Variable-mu
- Metallised bulb
- Designed for battery portable receivers
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Maximum Gain | 120 V | 1300 | — | — | — |
| Typical Operation | 120 V | 800 | — | — | 1 mA |
| Cut-off | 120 V | 10 | — | — | — |
Application Notes
The valve may be used in the H.F. and I.F. stages of a receiver, and also as a frequency changer if a separate oscillator is employed. Recommended screen voltage should be obtained by means of a series dropping resistance connected to the full H.T. supply.
Datasheets
Datasheet: VP23.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
0 results