Tube-number record
2EP4
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BrandPhilco
ClassTelevision Picture Tube
BaseCRT base (B7 family)
Filament6 V @ 145 mA
Construction
Primary TypeDisplay / CRT
EnvelopeJ16D1
Base MaterialPlastic
SectionsSingle
Filament / Heater
Heater NotesLow heater power for transistorized portable applications
Absolute Maximum Ratings
Plate Voltage11000 V
Grid 2 Voltage550 V
Grid 1 Voltage-155 V
H-C Voltage200 V
Audio Performance
Key Features
- Low drive voltage
- Low heater power
- Controlled aluminum thickness
- Straight gun
- No ion trap magnet required
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 9000 V | — | — | — | — |
Application Notes
Electrostatic focus and magnetic deflection picture tube specifically intended for portable television applications using special optical viewing systems.
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