Tube-number record
30L15
0 archive entries
30L15 is a tube type in the TubeDatabase archive (class: Cascode RF Double Triode). Recorded specifications: brand Ediswan Mazda, construction Dual triode, base Glass, socket Noval (B9A), maximum plate voltage 250 V, and maximum plate dissipation 2 W. The archive does not yet hold a photographed example of this type.
BrandEdiswan Mazda
ClassCascode RF Double Triode
BaseNoval (B9A)
Filament7 V @ 0.3 mA
Construction
Primary TypeDual triode
EnvelopeMiniature
Base MaterialGlass
Sections2
Filament / Heater
Heater NotesIndirectly heated—for series operation
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Circuit 1 (Potentiometer Bias) | 200 V | 8500 | — | 26 | 15.3 mA |
| Circuit 2 (Grid Current Bias) | 200 V | 8600 | — | 26 | 14.8 mA |
Application Notes
The 30L15 is designed for use as a Cascode RF Amplifier in television receivers.
Datasheets
Datasheet: 30L15.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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