DY87
0 Tubes in archive
BrandPhilips
ClassRectifier
BaseNOVAL
Filament1.4V @ 550mA
Construction
Primary TypeHigh-vacuum single-anode
Rectifier TypeSingle-anode
EnvelopeChemically treated glass
Sections1
Filament / Heater
Heater NotesIndirectly heated by A.C. or D.C.; Parallel supply
Absolute Maximum Ratings
Plate Voltage22000 V
Cathode Current0.8 mA
Audio Performance
Key Features
- Chemically treated envelope to avoid flash-over
- Suitable for high humidity and low atmospheric pressure (45 cm Hg)
- Anti-corona ring mounting capability
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| E.H.T. Supply | 18000V | - | 20000 | - | 0.15mA |
Application Notes
Heater voltage should be adjusted to 1.4V at 200 µA output current. Pins 3 and 7 must never be earthed and may be connected to heater potential components. Use insulating cover for metal top-cap at high voltage/humidity to avoid corona.
Datasheet Viewer
Loading datasheet...
Sort by
Showing 1 to 0 of 0 results