7693
3 Tubes in archive
BrandAmperex Electronic Corporation
ClassSharp cutoff R.F. pentode
Base7-pin miniature
Filament6.3V @ 150mA
Construction
Primary TypePentode
EnvelopeT5 1/2
SectionsSingle
Filament / Heater
Heater NotesHeater voltage variations of +/- 20% are allowed during short periods.
Absolute Maximum Ratings
Plate Voltage330 V
Plate Dissipation2.6 W
Grid 2 Voltage600 V
Grid 1 Voltage-55 V
Cathode Current15 mA
H-C Voltage100 V
Audio Performance
Key Features
- Shock and vibration resistant
- Special quality
- Sharp cutoff
- Industrial and mobile equipment use
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Sharp cutoff R.F. pentode | 250V | 4600 | 1300000 | 48 | 7.4mA |
Application Notes
Circuit operation with cathode bias is recommended. At heater voltage = 5.0 volts the typical value of transconductance will decrease to about 4000 micromhos.
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