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TH328_FC620F Uhf Triode-Power Valve

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Export Markets:	North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
Place of Origin:	Beijing in China
Packaging Details:	PAPER CARTON

Specifications

TH328_FC620F UHF TRIODE

Peak-of-sync output power in combined amplification: 100w

General characteristics

Cathode	oxide	Heating	indirect
Filament voltage	5.5V	Filament current	5.4 A
Interelectrode capacitances (cathode earthed), approx.	Cathode-control grid	8.2 pF
	Cathode-screen grid	19 pF
	Cathode-anode	0.07 pF
Transconductance (la=0.4A, Ua=1800 V)	≥ 80mA/V	Temperature on the surface of the tube, max.	250℃
Temperature at air outlet, max.	100℃	amplification factor, average	180
Anode cooling	forced air	Weight, ( approx. )	950 g
Air flow, min.	500 L/min	Operating position	any

Maximum ratings

Frequency	1000 MHz	Anode voltage	2.2 kV
Anode current	0.6 A	Anode dissipation	750 W

Typical operation

Combined amplification
Frequency	780 MHz
Peak-of-sync output power	100 W
Bandwidth (-1dB)	8 MHz
Intermodulation distortion	≤ -52 dB
Gain	20 dB
Anode voltage	108 kV
Anode current (at zero signal)	0.4 A

(1) The operating heater voltage must be defined according to each particular situation.

As an indication for equipment design purposes only, a given heater voltage of 5.5V produces a given heater current of 5.4A.

(2) Values for cooling given for maximum anode dissipation.

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