Tube-number record
19R-LL1
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19R-LL1 is a tube type in the TubeDatabase archive (class: Medium-Mu Twin Triode). Recorded specifications: construction Dual triode, socket Noval (B9A), maximum plate voltage 275 V, and maximum plate dissipation 2.8 W. The archive does not yet hold a photographed example of this type.
ClassMedium-Mu Twin Triode
BaseNoval (B9A)
Filament19 V @ 150 mA
Construction
Primary TypeDual triode
EnvelopeMiniature
Sections2
Filament / Heater
Heater NotesNot suitable for applications where the heater circuit is switched On and Off often
Absolute Maximum Ratings
Plate Voltage275 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 120 V | 5500 | 5500 | 30 | 8.5 mA |
Application Notes
Used as an oscillator, amplifier, etc. in wire communication equipment. Heater circuit should not be switched often.
Datasheets
Datasheet: 19R-LL1.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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