Tube-number record
ECH35
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BrandPHILIPS
ClassTRIODE-HEXODE
BaseOctal
Filament6.3 V @ 0.24 mA
Construction
Primary TypeMulti-section
EnvelopeGlass
Sections2
Filament / Heater
Heater Notesindirect by A.C. or D.C.; series or parallel supply
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation1.2 W
Grid 2 Voltage125 V
Grid 1 Voltage-1.3 V
Cathode Current15 mA
H-C Voltage100 V
Audio Performance
Key Features
- Indirectly heated
- Frequency changer
- Series or parallel supply
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| triode section oscillator | 100 V | — | — | — | 3.3 mA |
| triode section oscillator | 150 V | — | — | — | 8 mA |
| triode section oscillator | 250 V | — | — | — | 3.3 mA |
Datasheets
Datasheet: ECH35.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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