<< 102D 102D/n Vacuum Tube

Classification- Globe-type bulb of glass, a white ceramic base with four-prong bayonet golden pins, oxide coated filamentary, solid plate or mesh plate triolde.

Application -It intended for use as a audio frequency voltage amplifier.

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

Nominal operating conditions and parameters
Filament voltage* 2.1V
Nominal filament current 1.0A
Plate voltage 160V
Grid voltage -3V
Plate resistance 8.1kohms
Plate current 0.34mA
Amplification factor 29.2

*Direct-current filament supply is used. The grid and platter returns are connected to the negative end of the filament.

Characteristics-Average characteristics
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 190 volts
Maximum plate current 1.5mA