Tube-number record
5T8
0 archive entries
5T8 is a tube type in the TubeDatabase archive (class: Triple-Diode Triode). Recorded specifications: brand Tung-Sol, year 1959, construction Multi-section, base Glass Button, socket Noval (B9A), maximum plate voltage 330 V, and maximum plate dissipation 1.1 W. The archive does not yet hold a photographed example of this type.
BrandTung-Sol
ClassTriple-Diode Triode
BaseNoval (B9A)
Filament4.7 V @ 600 mA
Construction
Primary TypeMulti-section
EnvelopeGlass
Base MaterialGlass Button
Sections4
Filament / Heater
Warm-up Time11s
Heater Notes600 mA series heater type
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 Amplifier | 100 V | 1300 | 54000 | 70 | 0.8 mA |
| Class A1 Amplifier | 250 V | 1200 | 58000 | 70 | 1 mA |
Application Notes
Designed for use in 600 mA series heater operated receivers; structure permits construction of AM/FM receivers with minimum switching.
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