1287
0 Tubes in archive
BrandRaytheon
ClassPentode
BaseLocking Base
Filament12.6V @ 150mA
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater Notesa-c or d-c
Absolute Maximum Ratings
Plate Voltage250 V
Grid 2 Voltage100 V
Audio Performance
Key Features
- Remote cutoff characteristics
- Designed for RF amplifier in radio receivers
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier | 100V | 1900 | 250000 | - | 8.9mA |
| Class A Amplifier | 250V | 2000 | 800000 | - | 9.2mA |
Application Notes
The 1287 is a pentode type amplifier tube with remote cutoff characteristics designed for RF amplifier in radio receivers.
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