Tube-number record
1805
0 archive entries
1805 is a tube type in the TubeDatabase archive (class: Full-wave Rectifier). Recorded specifications: construction High vacuum and maximum plate voltage 500 V. The archive does not yet hold a photographed example of this type.
ClassFull-wave Rectifier
Construction
Primary TypeHigh vacuum
Rectifier TypeFull-wave
EnvelopeGlass
SectionsDouble
Filament / Heater
Absolute Maximum Ratings
Plate Voltage500 V
Cathode Current100 mA
Audio Performance
Key Features
- High-vacuum
- Direct heating
- Parallel supply
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Rectifier (Vtr 2x300V) | 300 V | — | — | — | 100 mA |
| Rectifier (Vtr 2x400V) | 400 V | — | — | — | 75 mA |
| Rectifier (Vtr 2x500V) | 500 V | — | — | — | 60 mA |
Application Notes
Operating characteristics specified for transformer voltages of 2x300V, 2x400V, and 2x500V RMS.
Datasheets
Datasheet: 1805.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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