Tube-number record
7802WA
0 archive entries
7802WA is a tube type in the TubeDatabase archive (class: Industrial Ruggedized Medium-Mu Twin Power Triode). Recorded specifications: brand Tung-Sol, year 1963, construction Dual triode, base Large wafer octal 8-pin with metal sleeve, JEDEC type B8-98, socket Octal, maximum plate voltage 250 V, and maximum plate dissipation 13 W. The archive does not yet hold a photographed example of this type.
BrandTung-Sol
ClassIndustrial Ruggedized Medium-Mu Twin Power Triode
BaseOctal
Filament6.3 V @ 2.5 mA
Construction
Primary TypeDual triode
EnvelopeT12
Base MaterialLarge wafer octal 8-pin with metal sleeve, JEDEC type B8-98
Sections2
Filament / Heater
Heater NotesMin/Max range 6.0V to 6.6V
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Series Regulator Service | 100 V | 20000 | — | 9 | 115 mA |
Application Notes
Widely used as a passing tube or series regulator tube in controlled power supplies. Use of cathode resistors (approx 1/3 value of equivalent plate resistors) is recommended for current division when paralleled.
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