Tube-number record
PD.220
0 archive entries
PD.220 is a tube type in the TubeDatabase archive (class: Double Triode). Recorded specifications: brand Ediswan (Mazda), construction Dual triode, socket 7-pin (non-miniature), and maximum plate voltage 150 V. The archive does not yet hold a photographed example of this type.
BrandEdiswan (Mazda)
ClassDouble Triode
Base7-pin (non-miniature)
Construction
Primary TypeDual triode
EnvelopeGlass
Sections2
Filament / Heater
Absolute Maximum Ratings
Plate Voltage150 V
Cathode Current45 mA
Audio Performance
Key Features
- Low consumption
- Class B positive drive
- Battery operated
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class B | 120 V | 900 | — | — | 0.7 mA |
| Class B | 135 V | 900 | — | — | 0.75 mA |
| Class B | 150 V | 900 | — | — | 0.8 mA |
Datasheets
Datasheet: PD220.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
0 results