7T69RB
7T69RB Electron tube is a ceramic & metal power triode with carbonization thorium-tungsten cathode. The anode is forced air cooling. Its maximum anode dissipation is 4.5kW and limiting frequency is 110MHz. When the frequency is lower than the limiting rate, the output power is to 9.1kW.
It is used in high frequency heating equipment in industry.
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Filament Voltage
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12.6 V
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Filament current
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35A
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Interelectrode capacitances, approx.
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Grid-anode
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18pF
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Cathode-grid
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13pF
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Cathode-anode
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0.7pF
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Transconductandce (la=0.8A)
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13mA/V
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Temperature on the sealing the tube, max.
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250℃
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cooling
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forced air
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Weight,( approx.)
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2.8 Kg
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Amplification factor
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21
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Air flow, min.
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16500 L/min
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Operating position
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Vertical, anode down
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Anode cooling airflow
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7m3/min
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Frequency
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110MHz
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Anode dissipation
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4.5kW
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Anode direct voltage
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8kV
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Filament impact current
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0.5A
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Anode direct current
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2A
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Grid dissipation
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180W
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Filament voltage
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12.6 V
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Anode output power
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7-9kW
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Anode direct voltage
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6-7kV
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Grid direct current
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250-320mA
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Anode direct current
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1.6-1.8A
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Grid bias resistance
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3.5kΩ
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