Tube-number record
UU.7
0 archive entries
UU.7 is a tube type in the TubeDatabase archive (class: Rectifier). Recorded specifications: brand Mazda, construction Indirectly heated, socket Octal, and maximum plate voltage 400 V. The archive does not yet hold a photographed example of this type.
BrandMazda
ClassRectifier
BaseOctal
Filament4 V @ 2.3 mA
Construction
Primary TypeIndirectly heated
Rectifier TypeFull-wave
EnvelopeSmall, metallised
Sections2
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Full Wave Rectifier | 300 V | — | — | — | 120 mA |
| Full Wave Rectifier | 350 V | — | — | — | 180 mA |
Application Notes
Suitable for mains portable receivers or any receivers where rectifier hum trouble is experienced due to cramped lay-out.
Datasheets
Datasheet: UU7.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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