12DY8
0 Tubes in archive
BrandSylvania
ClassTriode-Tetrode
Base9-Pin Miniature Button
Filament12.6V @ 350mA
Construction
Primary TypeTriode-Tetrode
EnvelopeT-6 1/2
Sections2
Filament / Heater
Heater NotesDesigned for automotive service from a nominal 12-volt battery source (10.0 to 15.9V).
Absolute Maximum Ratings
Plate Voltage16 V
Grid 2 Voltage16 V
H-C Voltage16 V
Audio Performance
Key Features
- Low voltage operation
- Double section
- Automotive battery operation
- Relay service tetrode
- Sharp-cutoff triode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Triode Section | 12.6V | 2000 | 10000 | 20 | 1.2mA |
| Tetrode Section | 12.6V | 6000 | 5000 | - | 14mA |
| Tetrode Section - Relay Service (Low) | 10V | - | - | - | 5mA |
| Tetrode Section - Relay Service (High) | 15V | - | - | - | 3mA |
Application Notes
The Sylvania Type 12DY8 is a double section tube featuring a tetrode designed for relay service in 'signal-seeker' applications and a sharp-cutoff triode for general purpose use in 12-volt automotive systems.
Datasheet Viewer
Loading datasheet...
Sort by
Showing 1 to 0 of 0 results