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Amplifiers - Tube
Standard Glass Vacuum, Klystron, TWT, Solid-State Replacement
Manufacturers & Services

A lot of people are under the assumption that tube-based amplifiers are no longer being produced. Of course, some do not even know what a tube is. Even so, they are probably only familiar with the classic glass enclosure mounted on a plastic, Phenolic, or ceramic base with pins sticking out of the bottom. Many modern tube amplifiers have metal enclosures as well as glass; microwave oven tubes are an example. Audiophiles swear by their tube amplifiers, claiming that no solid state amplifier can replicate the tonal quality of tubes (which many attribute to the physical movements of the grids when stressed by the musical signals).

| Discretes | Packaged & MMIC | Tube | Amplifier Design Data |

Applied Systems Engineering | 817-249-4180 | Fort Worth, TX
Klystron, pulse/CW TWT amplifiers and magnetron, cavity oscillator transmitters.

AR Worldwide RF Microwave Instrumentation | 215-723-8181 | Souderton PA
300 kHz to 65 MHz modules for NMR, 10 MHz to 670 MHz for military, communications and EW, 20 to 1000 MHz amplifiers and amplifier modules for high energy physics, 900 MHz to 3 GHz; single frequency amplifiers for high energy physics. Power available in 50, 100, 250, 500, and 1000 W increments.

CPI, Eimac Division | 800-414-8823 | San Carlos, CA
Designs and manufactures a broad line of power grid tubes.

CPI MPP | 650-846-3073 | Palo Alto, CA
Coupled cavity TWTs, Gyrotrons, helix TWTs, Klystrons, MPMs, transmitter subsystems.

Instruments for Industry (IFI) | 31-467-8400 | Ronkonkoma, NY
Amplifier configurations such as tetrode tubes, TWTs, klystrons, and solid state devices. Standard horn antennas and TEM cells.

L-3 Electron Devices (formerly Litton) | 650-591-8411 | San Carlos, CA
Producer of microwave tubes, amplifiers and other vacuum devices for use in a variety of Military and Commercial systems. Electron Devices also provides commercial devices for TV broadcasting, medical applications, satellite communications, and high energy plasma research.

MimiX Broadband (now AWR) | 281-988-4600 | Houston, TX
17 - 44+ GHz MMIC amplifiers, receivers, transmitters, surface mount package devices.

Miteq | 631-436-7400 | Hauppauge, NY
Amplifiers, mixers, frequency multipliers, passive power components, solid-state switches, attenuators, power dividers, RF and IF signal processing components, oscillators, frequency synthesizers, integrated multifunction assemblies, fiber optic products, up/downconverters, test translators, IF/video equalizers, redundancy switchover units, video modulators and modems.

Pro-Comm | 732-206-0660 | Brick, NJ
RF amplifiers, triode cavity oscillators, sources, transmitters, test equipment for cellular, military, medical, sterilization, for university and private labs. 600-3000 MHz, 500 W peak to 50 kW peak nominal. Design, manufacture and service RF drivers. Repair/refurbish medical RF drivers manufactured by SPC, MPD, Titan Beta, Micon, Siemens, SGS Thomson, Varian, Comtech, Pro-Comm.

Radio Research Instrument Co | 203-753-5840 | Waterbury CT
Manufacturer of Radar Systems, Radar Sub-Systems, Pulse Modulators, Antenna Systems, & Microwave Systems.

Thales Electron Devices | +33 (0) 1-30-70-3500 | France
Manufacturer of electron tubes & devices for professional applications.

TMD Technologies Ltd | +44 (0)20 8573 5555 | UK
Suppliers of rugged amplifiers and transmitters for radar and electronic Warfare (EW) applications, as well as microwave tubes, high voltage power supplies, instrumentation microwave amplifiers and special processing services.

Xicom Technology | 408-213-3000 | Santa Clara, CA
Traveling wave tube amplifiers (TWTAs), Klystron power amplifiers (KPAs) and solid state power amplifiers (SSPAs), high power amplifiers (HPAs).

Related Pages on RF Cafe
- Amplifier Design Resources
- Opamp Noise Figure
- Operational Amplifiers (Opamps)
- Amplifier Vendors - RF / Operational / Log Video
- Amplifier Vendors - Tubes, Vacuum, Klystron, TWT
- Amplifier Vendors - Discretes
- RF & Analog Amplifier Vendors - Packaged & MMIC
- NEETS - Introduction to Amplifiers
- Power Amplifier Linearization Using Diode On Voltage
- GSM Handset Power Amplifier Control Loop Design

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