Tube-number record
UCH 41
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BrandPhilips
ClassTriode-Hexode
BaseRimlock
Filament14 V @ 100 mA
Construction
EnvelopeGlass
SectionsTriode-Hexode
Filament / Heater
Heater NotesIndirect heating, A.C. or D.C. series supply
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation0.8 W
Grid 2 Voltage125 V
Grid 1 Voltage-1.3 V
Cathode Current7 mA
H-C Voltage150 V
Audio Performance
Key Features
- Frequency changer
- Low inter-electrode capacitance
- Rimlock base
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Triode section (as characteristics) | 100 V | 1900 | — | 19 | 8.5 mA |
| Hexode section (frequency converter) | 170 V | 450 | 1200000 | — | 2.2 mA |
| Triode section (as oscillator) | 170 V | 600 | 10000 | — |
Application Notes
Frequency changer/converter for use in radio receivers. Hexode screen grids can be fed via a potentiometer for AGC applications.
Datasheets
Datasheet: UCH41.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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