SHARP CUTOFF PENTODE
0 Tubes in archive
BrandSylvania
ClassComputer Tube
BaseLock-in 8-Pin
Filament7V @ 300mA
Construction
Primary TypePentode
EnvelopeT-9
SectionsSingle
Filament / Heater
Heater Notes7.0V is nominal; 6.3V is actual
Absolute Maximum Ratings
Plate Voltage200 V
Plate Dissipation3.5 W
Grid 2 Voltage100 V
Grid 1 Voltage-100 V
H-C Voltage200 V
Audio Performance
Key Features
- Lock-in base
- Suppressor control
- Sharp cutoff
- Computer service design
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Condition 1 | 150V | 6000 | 11500 | - | 40mA |
| Condition 2 (Cutoff) | 150V | - | - | - | 2.5mA |
| Condition 3 (Suppressor Control) | 150V | - | - | - | 2mA |
Application Notes
For use as a gating tube, screen dissipation may reach 4.0 watts momentarily.
Sort by
Showing 1 to 0 of 0 results