Tube-number record
6/30L2
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BrandMazda
ClassTelevision Twin Triode
BaseNoval (B9A)
Filament6.3 V @ 0.3 mA
Construction
Primary TypeDual triode
EnvelopeGlass
Sections2
Filament / Heater
Heater NotesIndirectly heated—for series or parallel operation
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation2 W
H-C Voltage150 V
Audio Performance
Key Features
- General Purpose
- Internal shield
- Suitable for A.C./D.C. operation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Each section | 200 V | 3400 | — | 18 | 10 mA |
Application Notes
The permissible anode dissipation rating is dependent on the grid-cathode resistance, and the circuit employed. For the values quoted, the grid-cathode resistance should not exceed 0.25 megohms with cathode self bias.
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