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Producer of power vacuum tubes for radio frequency applications
Eimac is a trade mark of Eimac Products, part of the Microwave Power Products Division of Communications & Power Industries. It produces power vacuum tubes
Eimac
City in California, United States
in 1959. Eimac's San Carlos plant was dedicated on April 16, 1959. In 1965, Eimac merged with Varian Associates and became known as the Eimac Division
San_Bruno,_California
Holding company for producer of vacuum tubes etc
founders) to concentrate on medical systems. Its major subsidiaries include Eimac (which manufactures new vacuum tubes for broadcasting, radar, medical systems
CPI_International
Tetrode used in radio transmitters
Data sheet for the Eimac 4-1000A RCA Transmitting Tubes TT4, 1956 EIMAC Power Grid Tubes Quick Reference Catalog 175 Data sheet for EIMAC 8189 / 4PR1000A
4-1000A
Electric battery using nuclear energy
photovoltaic cell. The technology was developed in 1961 by researchers at Eimac, at their San Carlos, CA facility, contracted by Sandia National Laboratories
Optoelectric_nuclear_battery
Device that controls current between electrodes
water-vapor cooling are used. The highest-power tube currently available is the Eimac 4CM2500KG, a forced water-cooled power tetrode capable of dissipating 2
Vacuum_tube
Electronic circuit
Power triode Eimac 3CX1500A7
Linear_amplifier
Experimental type X2159 was assigned to the development of a power tetrode by Eimac (then a division of Varian Associates) on May 28, 1970, and the design engineer
8974
American amateur radio expert
Eitel-McCullogh (EIMAC). In addition, to working for EIMAC, Orr penned columns for CQ Amateur Radio and Ham Radio magazines. His application notes for EIMAC tubes
William_I._Orr
4B32 – 10 kV, 1.25 Aavg, 5 Apeak Xenon half wave rectifier 4D21 (6155, Eimac 4-125A) – 125 W Glass VHF beam power tetrode 4E27 – 125 W Glass radial-beam
List_of_vacuum_tubes
Television engineering and technology award
Specials 1990 Engineering Emmy Award: Comark Communications, Inc. and Varian/Eimac for the Klystrode UHF High Power Amplifier Tube and Transmitter Engineering
Primetime Engineering Emmy Awards
Primetime_Engineering_Emmy_Awards
Transmitter tube Eimac 2C39A
Valve_transmitters
American engineer and inventor
equipment in their family firm, Varian Associates. Another firm (later called Eimac) founded by fellow amateur radio operators William Eitel and Jack McCullough
Charles_Litton_Sr.
Vacuum tube used for amplifying radio waves
have been described as a cross between a klystron and a tetrode, hence Eimac's trade name for them, Klystrode. They have an electron gun like a klystron
Inductive_output_tube
Type of electrode
Glow of a directly heated cathode in an Eimac 4-1000A 1 kW power tetrode tube in a radio transmitter. Directly heated cathodes operate at higher temperatures
Hot_cathode
AM, CW RF power Output: <400 watts CW, <300 watts AM, MCW Vacuum tubes: Eimac 250TH final, pair 100TH modulator, various rectifier and low level tubes
BC-610
Type of tetrode vacuum tube
adopted in larger tubes with an anode power rating of 100W or more. The Eimac 4CX250B (rated at 250W anode dissipation) is an example of this class of
Beam_tetrode
Australian portable radar used in WWII
transmitter ran low. An effort began to use an alternative design, the 100TH Eimac. These proved to be able to generate much greater output than the VT90s
Light Weight Air Warning Radar
Light_Weight_Air_Warning_Radar
Vacuum tube with four active electrodes
EIMAC 4-250A radial beam power tetrode
Tetrode
German electrical engineer and inventor
After doing scientific work for Eitel McCullough and later the Varian Eimac division in San Carlos from 1955 until 1983, he founded his own company
Oskar_Heil
American manufacturer of X-ray and vacuum tubes
peak tube was operated with a grounded cathode. Later, chief competitor Eimac released tetrodes which rather quickly eclipsed Machlett's triodes, as tetrodes
Machlett_Laboratories
American satellite family
and Spread Spectrum Multiple Access (SSMA) modulation techniques. The Eimac Division of Varian Associates supplied one of the two traveling wave amplifiers
Initial Defense Communications Satellite Program
Initial_Defense_Communications_Satellite_Program
Device for electrically amplifying the power of an electrical radio frequency signal
power tetrode" (PDF). Tube Data (tubedata.tubes.se). EIMAC technical data. San Carlos, California: EIMAC division of Varian. 1966-05-15 [1962]. Retrieved
Valve_RF_amplifier
rated variant of the earlier 829B. 4D21—VHF beam tetrode better known by Eimac commercial number 4-125A. 5C22—Hydrogen thyratron for radar modulators.
RMA_tube_designation
corporation 1966 - 1967 Chief Engineer, Industrial Microwave Division of Eimac-Varian Kohler continued to pursue his profession as a research engineer
Fred_Kohler_(author)
EIMAC
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