Tube-number record
6445
0 archive entries
BrandAmperex
ClassForced Air-Cooled Triode
BaseSpecial / none
Construction
Primary TypeTriode
EnvelopeGlass-to-Metal
Base MaterialPowdered glass stem
SectionsSingle
Filament / Heater
MaterialTungsten
Absolute Maximum Ratings
Plate Voltage12500 V
Plate Dissipation5000 W
Grid 1 Voltage-3000 V
Cathode Current2000 mA
Audio Performance
Power Output17000 W
Key Features
- Rugged powdered glass stem
- Kovar ring grid connection
- Lower grid lead inductance
- Strong conical internal grid support
- Shorter overall length
- Spiral filament
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| A.F. Power Amplifier Class B (Two Tubes) | 10000 V | 7000 | — | 50 | 2500 mA |
| R.F. Power Amplifier Class C Telephony | 8000 V | — | — | 50 | 960 mA |
| R.F. Power Amplifier Class C Telegraphy | 10000 V | — | — | 50 |
Application Notes
The 6445 is an improved version of the standard type 892R. Rated air flow must be continuous during voltage application and for 5 minutes after removal.
Datasheets
Datasheet: 6445.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
0 results