17JZ8
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BrandTung-Sol
ClassTriode-Pentode
Base12-pin Compactron (E12-70)
Filament16.8V @ 450mA
Construction
Primary TypeTriode-Pentode
EnvelopeGlass
Sections2
Filament / Heater
Heater NotesHeater warm-up time: 11 seconds
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation7.08 W
Grid 2 Voltage200 V
Grid 1 Voltage150 V
Cathode Current70 mA
H-C Voltage200 V
Audio Performance
Key Features
- Medium-Mu Triode
- Beam Pentode
- Compactron Construction
- Coated Unipotential Cathode
- Any Mounting Position
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Triode Section | 150V | 2350 | 8500 | 20 | 5.5mA |
| Pentode Section | 120V | 7100 | 11700 | - | 46mA |
| Pentode Section (Zero Bias) | 45V | - | - | - | 122mA |
Application Notes
Triode designed for service as a vertical-deflection oscillator and the pentode as a vertical-deflection amplifier in television receivers.
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