Tube-number record
EC57
0 archive entries
BrandPhilips
ClassDisc-seal Triode
BaseOctal
Filament6.3 V @ 650 mA
Construction
Primary TypeTriode
EnvelopeDisc-seal
Base MaterialOctal base with 1/2"-32NS-2B Thread
SectionsSingle
Filament / Heater
Heater NotesIndirect heating by A.C. or D.C.; parallel supply
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation10 W
Grid 1 Voltage-50 V
Cathode Current70 mA
H-C Voltage50 V
Audio Performance
Power Output1.8 W
Key Features
- Disc-seal construction
- Indirectly heated
- Broad-band microwave amplifier
- Grounded grid circuit design
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Characteristics | 180 V | 17000 | — | 43 | 30 mA |
| RF Amplifier (f = 4000 MHz) | 200 V | — | — | — | 60 mA |
Application Notes
Specifically designed as a broad-band micro-wave amplifier in grounded grid circuits. Forced air cooling may be required. Shocks perpendicular to the axis should be avoided.
Datasheets
Datasheet: EC57.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
0 results