Tube-number record
2T4
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BrandTung-Sol
ClassTriode
BaseMiniature 7-pin (B7G)
Filament2.35 V @ 0.6 mA
Construction
Primary TypeTriode
EnvelopeGlass
Base MaterialButton Base
SectionsSingle
Filament / Heater
Warm-up Time11s
Heater NotesThermal characteristics of the heater are controlled for series heater strings.
Absolute Maximum Ratings
Plate Voltage200 V
Plate Dissipation4.5 W
Cathode Current30 mA
H-C Voltage50 V
Audio Performance
Key Features
- Low-Mu Triode
- UHF Oscillator
- Controlled Heater Warm-up
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 80 V | 7000 | 1860 | 14 | 18 mA |
| Oscillator at 950 MC | 80 V | — | — | — | 18 mA |
Application Notes
Designed for use as an oscillator in UHF, 600 MA series heater operated television receivers.
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