Tube-number record
2ER5
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2ER5 is a tube type in the TubeDatabase archive (class: VHF Triode). Recorded specifications: brand Sylvania, construction Triode, base Glass, socket Miniature 7-pin (B7G), maximum plate voltage 250 V, and maximum plate dissipation 2.2 W. The archive does not yet hold a photographed example of this type.
BrandSylvania
ClassVHF Triode
BaseMiniature 7-pin (B7G)
Filament2.3 V @ 600 mA
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 | 200 V | 10500 | 8000 | 80 | 10 mA |
Application Notes
Designed for use as VHF RF amplifiers in television receivers.
Datasheets
Datasheet: 2ER5.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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