Name: YU-108, 3CX4500F3 Ultra-high frequency heating tube Metal Ceramic Grid vacuum Tube YU108
Brand: China industrial electronic components
SKU: EIH01100
Price: 1414.71 USD
Availability: InStock

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$1414.71

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Description
Reviews(7)

Introduction:
1. The YU-108 type electron tube is a cermet structure with thorium tungsten cathode, forced air cooling, and a power triode with medium amplification factor. The highest operating frequency is 75MHz, the maximum anode power dissipation is 6KW, and the maximum grid power dissipation is 300w
2. Mainly used as oscillator in industrial high frequency heating equipment
3. In industrial applications, the tube filament is led out with a soft wire, and the grid is connected to the equipment with a solid flange. It can be used interchangeably with 3CX4500F3/YU-108 tube produced in the United States

一、Characteristic parameter

Filament voltage	7.0±0.35V	Filament current (at 7V)	78±3A
Amplification factor	22	The maximum diameter	155.58mm
Interelectrode capacitance (cathode grounded)	Input	35±5.2pF
	Output	0.9±0.3pF
	The gate - anode	20±3.2pF
Maximum operating frequency (continuous wave)	75MHz	Installation method	Vertical installation / anode up or down
Cooling method	Forced air cooling	Maximum temperature of anode outer surface	250℃
Maximum temperature of filament and tube socket connection line	150℃	The maximum length	468.3mm

二、Typical working status RF power amplifier or oscillator (Class C)

Anode voltage	8000Vdc	Anode current	2.75Adc
The gate voltage	-705Vdc	Gate current	0.68Adc
Peak positive gate voltage	346V	Excitation power	710W
Anode input power	22kW	Anode dissipation power	4.8kW
Anode output power	15kW	Load resistance (approximate value)	1437Ω
Gate resistance	1040Ω

三、Extreme use data, RF power amplifier or oscillator (Class C telegraph or FM)

DC anode voltage	9000V	DC gate voltage	-1000V
DC anode current	3.0A	DC gate current	0.8A
Anode dissipation	6kW	Gate dissipation	300W

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