6B8
0 Tubes in archive
BrandRCA
ClassDuplex-Diode Pentode
BaseSmall Wafer Octal 8-Pin
Filament6.3V @ 300mA
Construction
Primary TypeAll-Metal
EnvelopeMetal
SectionsTwo diodes and a pentode
Filament / Heater
Absolute Maximum Ratings
Plate Voltage250 V
Grid 2 Voltage125 V
Audio Performance
Key Features
- All-Metal tube construction
- Two diodes and a pentode in a single envelope
- Simultaneous detection, amplification, and automatic volume control
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 Amplifier | 250V | 1325 | 600000 | 800 | 10mA |
Application Notes
Recommended for combined detector, amplifier (RF, IF, or AF), and AVC service in radio receivers. The pentode unit features an extended cut-off to permit moderate gain control by grid-bias variation without introducing cross-modulation. Diodes may be used in full-wave or half-wave circuits.
Datasheet Viewer
Loading datasheet...
Sort by
Showing 1 to 0 of 0 results