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<< 45/n 45/c Vacuum Tube



Classification- Dome-type or Aubergine-type bulb of glass, a white ceramic base with four-prong bayonet golden pins, oxide coated filamentary, mesh plate or carbon plate triode.

Application -Audio frequency amplifier where power outputs of approximately 1.6 watts.

Dimensions -Dimensions, outline diagrams of the tube and bases, and the arrangement of electrode connections to the base terminals are shown in Figures 1 and 2.

Nominal operating conditions and parameters
Filament voltage* …………………………………………………………… 2.5V
Nominal filament current …………………………………………………… 1.5A
Plate voltage ………………………………………………………………… 250V
Grid voltage** ……………………………………………………………… …-50V
Plate current ………………………………………………………………… 34mA
Amplification factor …………………………………………………………… 3.5
Load resistance ……………………………………………………………… 3900 ohms
Grid Current ………………………………………………………… …………0.05 μ A

*Alternating-current filament supply or Direct-current filament supply.
**Alternating-current filament supply is used. The grid and plate returns should be connected to a center tap on the secondary of the filament transformer.
Direct-current filament supply is used. The grid and platter returns are connected to the negative end of the filament.

Characteristics-Average characteristics
新款微信红包扫雷源码Figure 3. shown typical curves of plate currents of grid voltage for several values of plate voltages. It is alternating-current filament supply.

Fig 3

Limiting Operation Conditions for Safe Nor simultaneous ratings
Maximum plate voltage …………………………………………………… 275 volts
Maximum plate current …………………………………………………… 10 watts

 
 
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