Tube-number record
6697A
0 archive entries
6697A is a tube type in the TubeDatabase archive (class: Power Triode). Recorded specifications: brand Eimac, year 1964, construction Triode, socket Coaxial, maximum plate voltage 16000 V, and maximum plate dissipation 35000 W. The archive does not yet hold a photographed example of this type.
BrandEimac
ClassPower Triode
BaseCoaxial
Construction
Primary TypeTriode
EnvelopeCeramic-Metal
Sections1
Filament / Heater
MaterialThoriated-Tungsten
Absolute Maximum Ratings
Plate Voltage16000 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class-C Telegraphy | 15000 V | — | — | 20 | 7000 mA |
| Class-C Plate-Modulated | 9500 V | — | — | 20 | 8400 mA |
| Class-AB Audio (Two Tubes) | 10000 V | — | — | 20 | 17400 mA |
Application Notes
Maximum ratings apply up to 40 Mc. Useful output to 80 Mc at reduced ratings. Requires vertical mounting, anode down.
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