Tube-number record
253
0 archive entries
253 is a tube type in the TubeDatabase archive (class: High-vacuum diode rectifier). Recorded specifications: brand Eimac, construction Diode, base Metal/Ceramic, socket 4-pin, maximum plate voltage 15000 V, and maximum plate dissipation 100 W. The archive does not yet hold a photographed example of this type.
BrandEimac
ClassHigh-vacuum diode rectifier
Base4-pin
Construction
Primary TypeDiode
Rectifier TypeHigh-vacuum
EnvelopeGlass
Base MaterialMetal/Ceramic
SectionsSingle
Filament / Heater
MaterialThoriated Tungsten
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Single-Phase Half-Wave (Capacitor Input) | 5300 V | — | 300 | — | 210 mA |
| Single-Phase Full-Wave (Capacitor Input) | 5300 V | — | 300 | — | 420 mA |
| Single-Phase Full-Wave (Choke Input) | 5300 V | — | 300 | — |
Application Notes
Intended for use in rectifier units, voltage multipliers, or special applications where gas-filled tubes are unsuitable. Must be mounted vertically. Requires Eimac HR-8 Heat Dissipating Connector on plate terminal.
Datasheets
Datasheet: 253.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
0 results