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
| Packaged & MMIC |
Applied Systems Engineering
| 817-249-4180 | Fort Worth, TX
Klystron, pulse/CW TWT amplifiers and magnetron, cavity
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
| 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.
| 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
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.
| 408-213-3000 | Santa Clara, CA
Traveling wave tube amplifiers (TWTAs), Klystron
power amplifiers (KPAs) and solid state power amplifiers (SSPAs), high power amplifiers