272A
0 Tubes in archive
BrandWestern Electric
ClassLow-power triode
BaseMedium five-pin base with bayonet pin
Filament10V @ 320mA
Construction
Primary Typetriode
EnvelopeGlass
Sections1
Filament / Heater
Heater NotesAC or DC operation. Maximum heater-to-cathode voltage 90 V.
Absolute Maximum Ratings
Plate Voltage180 V
H-C Voltage90 V
Audio Performance
Power Output0.23 W
Key Features
- Indirectly heated cathode
- Low-power triode
- Bayonet pin base
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 80V | 1220 | 5400 | 6.6 | 8.7mA |
| Typical Operation | 100V | 950 | 6300 | 6 | 6.6mA |
| Maximum Operating Conditions | 180V | 760 | 7200 | 5.5 | 6.2mA |
Application Notes
Radio-frequency antenna-coupling amplifier; Audio-frequency amplifier where small power outputs are required; Detector or modulator.
Datasheet Viewer
Loading datasheet...
Sort by
Showing 1 to 0 of 0 results