Tube-number record
U.U.9
0 archive entries
U.U.9 is a tube type in the TubeDatabase archive (class: Full Wave Rectifier). Recorded specifications: brand Mazda, year 1948, construction Indirectly heated, base B8A, socket Rimlock, and maximum plate voltage 350 V. The archive does not yet hold a photographed example of this type.
BrandMazda
ClassFull Wave Rectifier
BaseRimlock
Filament6.3 V @ 630 mA
Construction
Primary TypeIndirectly heated
Rectifier TypeFull Wave
EnvelopeGlass
Base MaterialB8A
Sections2
Filament / Heater
Heater NotesIndirectly heated — for parallel operation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Full Wave Rectifier | 300 V | — | — | — | 60 mA |
| Full Wave Rectifier | 350 V | — | — | — | 60 mA |
| Full Wave Rectifier | 300 V | — | — | — | 80 mA |
0 results