Name: 4CX250B High Frequency Metal Ceramic Transmitter Radio Emission Amplifier Tetrode FU-251F, 7203 equivalent tube
Brand: China industrial electronic components
SKU: EIH01109
Price: 138.70 USD
Availability: InStock

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Price:

$138.70

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Description
Reviews(8)

Introduction:
1. The 4CX250B electron tube has a cermet structure, an indirectly heated oxide cathode, a cage-shaped grid tetrode, and the cooling method is forced air cooling. The maximum operating frequency is 500MHz, the maximum anode dissipation power is 250W, and the maximum anode operating voltage is 2000V
2. Mainly used in radio equipment, such as high-frequency equipment, high-frequency broadcasting and single-sideband communication machines for power amplification, voltage amplification, high-frequency, frequency multiplication and oscillation tubes
3. It can be used interchangeably with 4CX250B electron tubes produced in the United States

一．Characteristic parameter

Heating wire voltage	6.0V	Hot wire current	2.6A
Recommended hair dryer	Eimac SK-606	Amplification factor	5
Interelectrode capacitance (Cathode grounded)	Input	15.7pF
	Output	4.5pF
	Feedback	0.04pF
weight	125g	Installation method	Arbitrary
The maximum length	62.5mm	Maximum outer diameter	41.5mm
Cooling method	Forced air cooling	Recommended air cooling system socket	Eimac SK-600A
Interelectrode capacitance (Gate is grounded)	Input	13pF
	Output	4.5pF
	Feedback	0.01pF
Maximum temperature of anode shell and sealing joint		250℃

二．Maximum operating value

Maximum anode voltage	2000V	Maximum operating frequency	500MHz
Maximum anode current	0.25A	Maximum anode dissipation	250W
Maximum grid dissipation	12W	Maximum gate dissipation	2W

三. Typical working state

RF amplifier (Class C 175MHz)

Anode voltage	2000Vdc	Screen grid voltage	300Vdc
Output Power	390W	Anode current	0.25A
Effective incentive power	2.9W

RF linear amplifier (Class AB 175MHz)

Anode voltage	2000Vdc	Screen grid voltage	350Vdc
Output Power	300W	Anode current	0.25A

Audio amplifier or modulator (Class AB1)

Anode voltage	2000Vdc	Screen grid voltage	350Vdc
Output Power	600W	Anode current	0.5A(Double tube)

For delivery time:
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