2ER5
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BrandSylvania
ClassVHF Triode
BaseMiniature Button 7-Pin
Filament2.3V @ 600mA
Construction
Primary TypeTriode
EnvelopeT5-1/2
Base MaterialGlass
SectionsSingle
Filament / Heater
Heater NotesSeries string heater
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation2.2 W
Grid 1 Voltage50 V
Cathode Current20 mA
H-C Voltage200 V
Audio Performance
Key Features
- Semi-remote cutoff
- Frame grid
- Partial shield between grid and plate
- Dual cathode leads
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| VHF RF Amplifier | 200V | 10500 | 8000 | 80 | 10mA |
Application Notes
Designed for use as VHF RF amplifiers in television receivers.
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