Variable Attenuators
Provide changeable resistance values.
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Product
Variable Impact Tester
1615
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The Elcometer 1615 Variable Impact Tester is a simple to use gauge ideal for evaluating the resistance of a coating to impact (elongation, cracking or peeling).
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Product
Lake Variable Area Flow Meters
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Lake Variable Area flow meters, often referred to as rotameters, measure flow rate of a liquid or gas by relating linear displacement of an internal “float” or sharp-edged orifice plate (Lake) to a corresponding flow rate. As flow rate increases, the orifice area that the flow moves through also increases – thus, the term “Variable Area.” Variable Area meters either allow flow through a peripheral orifice formed between a tapered wall and a float as in the traditional rotameter, or an annular orifice and an internal tapered metering pin in the Lake Monitor.
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Product
Attenuators
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The 01311 attenuator chip series is designed to achieve precision and tight flatness with an attenuation accuracy of ± 0.2 dB on our 1-10 dB pads and ± 0.3 dB on our 11-20 dB pads. SemiGen tests 100% of all attenuator chips prior to shipment to verify that they meet specifications.
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Product
Fixed Attenuators
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A fixed 1 dB attenuator from Pasternack. This 1dB attenuator is an in-line, resistive PI attenuator pad design. Our coaxial 50 Ohm attenuator is manufactured to precise RF / microwave industry specifications.
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Product
Digital Control Step Attenuator
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Digital control attenuators with TTL parallel control offering fast switching speed and high attenuation accuracy
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Product
Chip-Type Attenuators
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Panasonic Industrial Devices Sales Company of America
Chip-Type Attenuators for high-frequency signal attenuation, level adjustment or matching improvement.
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Product
Variable Gain High Speed Linear Amplifier
F30PV
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The F30PV is a very fast general purpose linear amplifier having a variable amplification of 0-10 times and capable of bipolar voltage output of ±35V. Any functiongenerator or arbitrary waveform generatoror any othe signal source can be used as an input device. The amplifier's output is linear from DC up to ca 10 megahertz range. It can be used in a wide range of high speed applications.
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Product
Variable Frequency Drives (VFD)
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High performance, cost effective VFDs, ideal for both machines & process control.Unitronics VFDs offer options for both single and three phase VFDs from 0.4 kW and up to 500 kW.Unitronics VFDs can be used as a stand-alone product, or as part of a complete All-in-One package with our controllers.
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Product
SCR CONTROLLED VARIABLE DC POWER SUPPLY
P5085C
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Shown below is an AC to DC power supply with 4/20 ma interface. Input is 240 VAC, 1 PH, 60 Hz. Output is 0 to 10.5 DC, 130 Amps. This power supply can be interfaced to a PLC system. These units are customized units, built to order.
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Product
Digital Step Attenuators
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Ranatec’s digital step attenuators covers all mobile frequency bands and gives a calibrated attenuation range of more than 90 dB in steps of 0.25 dB. All Ranatec digital attenuators are built as modules and offers both serial and parallel control logic.
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Product
Variable Power Supply
VS-10a
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The VS-10a power supply is a light weight, portable, non-isolated “variable source” from 0 volts to 150 Vac or 0 volts to 150 Vdc and rated for up to 10 amps, thus the name VS-10a. It is comprised of an illuminated voltmeter that reads to the first significant digit, AC variable system output voltage, DC variable system output voltage, logic output voltage and one sense (continuity) contact monitoring points. Banana jacks for connection of test leads are spaced at intervals that allow the use of dual banana test plugs if desired. The VS-10a is protected by two levels of overcurrent protection; AC input, and ground fault protection by a GFCI. All circuitry is housed inside a custom designed case made from 16 gauge steel. An Internal fan dissipates heat buildup and exhaust through louvered side vents built into the case. The carrying handle is designed with a “spring return to rest” position and is padded for comfort. The case has been sized for optimum portability and is balanced from the handle during transportation. The case has a powder coated finish that is scratch, chemical and weather resistant. Rubber padded feet support the case when in the upright position and a convenience receptacle is located on the side of the case.
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Product
Variable Reluctance Pressure Sensor Capable of Range Changes
DP15
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An easy-to-replace pressure-sensing diaphragm maximizes the system's functionality by making pressure measurements from 2.22" H2O to 3200 psi in one compact unit. Rugged and reliable, the DP15 pressure sensor provides superior accuracy for measuring low-pressure liquids and gasses, while it withstands the abuse of field and laboratory testing. The ability to change full scale ranges make the DP15 a very cost effective solution for applications that need different pressure ranges or university labs.
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Product
Multi Wavelength DWDM Gain Flattened Variable Gain EDFA
MX4500 Series
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This EDFA is ideal for long distance DWDM or CWDM transmissions and may be used as a Line Amplifier, Pre-Amplifier, and Booster Amplifier.
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Product
Variable attenuator
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Optimum for simulation of wireless communication equipments, such as handover test, dynamic motion test and receiving sensitivity test. Moreover, optimum for the simulation of the receiving trouble by the rainfall attenuation in BS/CS digital broadcasting.
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Product
Variable Area Flowmeters
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Variable area flowmeters are the most cost effective solution for almost all applications involving the measurement of industrial process liquids, gases or steam. ABB´s variable area flowmeters are reliable, flexible and simple. They meet the application requirements by featuring a wide range of design varieties and sizes. Technology proven, they offer a long life and high reproducibility. Variable area flowmeters are excellent mechanical back-up meters because no external power supply is needed.
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Product
Voltage Control Attenuator
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RF Lambda’s voltage control attenuators allow for precision control of RF signals. With a voltage variable control pin the signal can be fine-tuned as needed by the system. These attenuators offer fast response time and wide band operation. Hermetically sealed options are available upon request.
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Product
Variable Gain Amplifiers
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Macom Technology Solutions Holdings Inc.
At MACOM we design, manufacture, and support a broad family of Variable Gain Amplifiers (VGAs) for RF, microwave, and millimeter wave applications. Our VGAs cover frequencies from 50 MHz to 40 GHz and are used in a variety of Network, Commercial and Aerospace and Defense applications. These products are available in industry standard plastic packaging and are designed for both 50 Ohm and 75 Ohm applications.
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Product
HVFO10X +/-10V (10x Attenuation) Universal Tip Accessory
HVFO100-10X-TIP-U
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HVFO10X +/-10V (10x Attenuation) Universal Tip Accessory.
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Product
Attenuator Modules
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The Analog Devices portfolio of wideband digital attenuators and voltage variable attenuators (VVAs) modules helps meet designers’ diverse needs. Low cost, high accuracy control, and small package options provide solutions for RF and IF applications, including the space, communications, and military industries.
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Product
0-600 Amp Variable Carbon Pile Load Tester
6039
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• Test batteries up to 1200 CCA• Fine threaded shaft for fine adjustment• Temperature compensation chart• Easy to read digital voltmeter & ammeter combine with the versatility of a carbon pile load• Spring loaded to shut-off automatically• Unique curved discs to prevent hot spots• Tests all battery types• Made in USA of US and Global Components
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Product
Low Pressure Variable Reluctance Sensor
DP45
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The Validyne DP45 Very Low Differential Pressure Transducer is designed for extremely low pressure measurement in the order of 1 inch water column. This instrument is used extensively in connection with flow measurements where dynamic response at low flow rates is required. Dynamic line pressure effects are minimized due to the combination of low internal volume, symmetrical construction, and small volumetric displacement inherent in the DP45 design.
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Product
Attenuators
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OZ Optics offers a broad range of both variable and fixed attenuators having key competitive advantages. All of our attenuators operate over the two standard wavelength bands, the C-Band and the L-Band. This wide wavelength range makes these components ideal for DWDM applications. Our attenuators are wavelength insensitive, which means they operate with minimal changes in attenuation when used in either the C-Band or the L-Band and exhibit low return loss. In addition, all of our attenuators have a wide attenuation range, which means they operate at a wide range of power levels. This is important as increased power levels are being used in newer optical systems.
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Product
Programmable Attenuators
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a programmable attenuator from Pasternack. Our SMA attenuator is a programmable step attenuator design. This 50 Ohm adjustable attenuator is precision manufactured to RF and microwave industry specifications.
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Product
4 Channel Variable Gain Fast Amplifier
V974
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The Mod. V974 is a 4 channel fast rise time amplifier housed in a 1-unit VME module; each channel features a voltage gain adjustable from 1 to 10 in x1 steps. Channels are non-inverting and bipolar: they amplify both positive and negative signals.





























