The EEA series VICKERS amplifier is an important component of the transmitting device in communication systems. According to the width of its operating frequency band, it is divided into two types: narrowband high-frequency power amplifier and broadband high-frequency power amplifier. Narrowband high-frequency power amplifier usually uses a frequency selection circuit with frequency selection filtering function as the output loop, so it is also called tuned power amplifier or resonant power amplifier; The output circuit of a broadband high-frequency power amplifier is a transmission line transformer or other broadband matching circuit, hence it is also known as a non tuned power amplifier. High frequency power amplifier is an energy conversion device that converts the DC energy supplied by the power supply into high-frequency AC output. It is known in the course of "Low frequency Electronic Circuit" that amplifiers can be classified into three working states: A, B, and C according to the different current conduction angles. The current flow angle of Class A amplifier is 360o, suitable for small signal low-power amplification. The current flow angle of Class B amplifier is approximately equal to 180o; The current flow angle of Class C amplifier is less than 180o. Both Class B and Class C are suitable for high-power operation. Class C has the higher output power and efficiency among the three working states. Most high-frequency power amplifiers operate in Class C. However, the current waveform distortion of Class C amplifiers is too large, so they cannot be used for low-frequency power amplification and can only be used for resonant power amplification using tuned circuits as loads. Due to the filtering ability of the tuning circuit, the current and voltage of the circuit are still very close to sine waveforms with minimal distortion.

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Hefei ruihuaxin mechanical and Electrical Equipment Co., Ltd. is mainly engaged in the sales and wholesale of port machinery, construction machinery and other complete vehicles and spare parts. The company's operating brands including: Konecranes, Kalmar, CVs, Fantuzzi, Sany, Kessler drive axle, Rockwell drive axle, transmission, Donaldson filter, man filter, , Cummins, DEUTZ, Scania, Parker, Eaton, Rexroth, etc.

Our company has independent import and export rights. Facing the global procurement to ensure that all products with high performance and price ratio of the distribution. We has always been adhering to the principle of small profits but quick turnover, As a business, we always adhere to the integrity and the savings to the customer, insist on their own service to impress customers. so that our products sell well at home and abroad and won the unanimous praise of customers.

Our company's operating philosophy is :Provide the best service and quality, strivie to satisfy all customers for mutual benefit and win-win.