Tube-number record
XD-44A/CNT-X15D-4
0 archive entries
XD-44A/CNT-X15D-4 is a tube type in the TubeDatabase archive (class: Gas Noise Tube). Recorded specifications: brand Central Electronic Manufacturers, year 1958, construction Diode, base Nickel Plated Brass, and socket Special / none. The archive does not yet hold a photographed example of this type.
BrandCentral Electronic Manufacturers
ClassGas Noise Tube
BaseSpecial / none
Construction
Primary TypeDiode
EnvelopeGlass
Base MaterialNickel Plated Brass
SectionsSingle
Filament / Heater
MaterialFilamentary Type
Warm-up Time3s
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Noise Generation | 75 V | — | — | — | 200 mA |
Application Notes
The noise frequencies cover a broad band limited by the type of mount. Normally used in RG-51/U waveguide at a 10 degree angle in the E plane.
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