High-Mu Power Triode EIMAC 3-500Z is a compact power triode intended to be used as a zero-bias class AB2 amplifier in audio or radio-frequency applications.Operation with zero grid bias simplifies associated circuitry by eliminating the bias supply. In addition, grounded-grid operation is attractive since a power gain as high as twenty times can be obtained with the 3-500Z in a cathode-driven circuit.

GENERAL CHARACTERISTICS

ELECTRICAL

FILAMENT: Thoriated Tungsten (see FILAMENT OPERATION)

Voltage …………………………………………………….....… 5.0V

Current,at 5.0 volt........................................................................14.5A

Amplification Factor (Average)..................................................130

Anode-Grid……………………………………………………..4.1 pF

Cathode- Grid……………………………………………….…7.4 pF

Anode-Cathode………………………..…………………..…0.07 pF

Frequency of Maximum Rating

CW…………………………………………………………..110 MHZ

MECHANICAL

Macimum Overall Dimensions:

Length……………………………………………….154.mm

Diameter…………………………………………….87.33mm

Net weight……………………………………………0.25KGS

Operating position…………………………vertical,base down or up

Maximum Operating Temperature

Plate seal………………………………………………………..225°C

Base seal………………………………………………………..200°C

Cooling………………………………………Radiation and forced air

Base……………………………………………………..5 pin special

Typical Operation

Filament Voltage..............................................................................5 V

Anode DC voltage..........................................................................3.5 KV

Grid DC Bias Voltage...................................................................-75 V

Anode DC current..........................................................................300 mA

Grid DC current...............................................................................115 mA

Anode output power .......................................................................850 W