Tube-number record
19Q9
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BrandSylvania
ClassMedium-mu triode and semi-remote cutoff pentode
Base10-pin
Filament18.9 V @ 150 mA
Construction
Primary TypeMulti-section
EnvelopeT-6 1/2
Sections2
Filament / Heater
Heater NotesHeater warm-up time 17 seconds
Absolute Maximum Ratings
Plate Voltage330 V
Plate Dissipation3 W
Grid 2 Voltage330 V
H-C Voltage200 V
Audio Performance
Key Features
- Semi-remote cutoff pentode
- Medium-mu triode
- 10-pin bulb
- FM RF amplifier
- Autodyne mixer
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Triode Section - Class A1 Amplifier | 125 V | 8000 | 5000 | 40 | 14 mA |
| Pentode Section - Class A1 Amplifier | 125 V | 6500 | 200000 | — | 12 mA |
Application Notes
Intended primarily for use as an FM RF amp. and autodyne mixer. Triode section control grid spacing precludes use of more than 100V between elements in checkers.
Datasheets
Datasheet: 19Q9.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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