Tube-number record
244A
0 archive entries
244A is a tube type in the TubeDatabase archive (class: Low-power triode). Recorded specifications: brand Western Electric, construction Triode, base Medium, five-pin type with bayonet pin, socket Special / none, and maximum plate voltage 180 V. The archive does not yet hold a photographed example of this type.
BrandWestern Electric
ClassLow-power triode
BaseSpecial / none
Filament2 V @ 1600 mA
Construction
Primary TypeTriode
EnvelopeGlass
Base MaterialMedium, five-pin type with bayonet pin
SectionsSingle
Filament / Heater
Heater NotesOperates on a voltage basis; reduction of hum by connecting cathode to center tap.
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 90 V | 630 | 15100 | 9.5 | 1.9 mA |
| Typical Operation | 135 V | 820 | 11800 | 9.7 | 3.8 mA |
| Maximum Operating Condition | 180 V | 820 | 11600 | 9.6 | 4.4 mA |
Application Notes
The 244A tube may be mounted in any position. Hum reduction is usually achieved by connecting the cathode to a center tap on the heater transformer secondary.
Datasheets
Datasheet: 244A.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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