Tube-number record
25DQ6A
0 archive entries
25DQ6A is a tube type in the TubeDatabase archive (class: Beam Power Pentode). Recorded specifications: brand Tung-Sol, year 1958, construction Pentode, base Short Medium-Shell, socket Octal, maximum plate voltage 700 V, and maximum plate dissipation 15 W. The archive does not yet hold a photographed example of this type.
BrandTung-Sol
ClassBeam Power Pentode
BaseOctal
Filament25 V @ 0.3 mA
Construction
Primary TypePentode
EnvelopeT-12
Base MaterialShort Medium-Shell
Sections1
Filament / Heater
Heater NotesAC OR DC
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier (Condition 1) | 60 V | — | — | — | 200 mA |
| Class A Amplifier (Condition 2) | 150 V | — | — | 4.1 | — |
| Class A Amplifier (Condition 3) | 250 V | 6600 | 20900 | — |
Application Notes
Designed for use as a horizontal deflection amplifier tube in high efficiency deflection circuits of television receivers.
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