Preamplifiers

Electronic Components & Devices, Test & Measuring Instruments, Sensors, Monitors & Transducers

Test and Measurement Microphone resists dust and water.

July 21, 2015

Featuring stainless steel grid cap and replaceable water- and dust-resistant cover, ½ in. Model 130A24 is suited for applications where moisture, oil splash, and contamination are present. Free-field, prepolarized microphone and preamplifier system has wide dynamic range from 30 dBA (inherent noise level) to 150 dB. Phase characteristics are tailored for noise source location applications such as holography, beamforming, acoustic cameras, and sound pressure mapping. Read More

Sensors, Monitors & Transducers, Electronic Components & Devices

Microphone and Preamp System provides infrasound measurements.

June 3, 2015

With frequency range of 0.13 Hz to 20 kHz, ±2 dB, ½ in. Model 378A07 meets IEC 61094-4 standard for test and measurement microphones. This covers infrasound which is below normal hearing range for adults. A2LA and ILAC accredited, free-field polarized microphone performs measurements commonly required for wind turbines, sonic booms, diesel engines, and specialized loudspeaker systems. Read More

Sensors, Monitors & Transducers, Electronic Components & Devices

Microphone Preamplifier allows acoustic testing in tight spaces.

February 12, 2015

Used to convert high impedance signal from measurement microphone into low impedance signal, Model 426A13 is designed for ½ in. microphones used to measure frequencies within both infrasound and the human audible range (3 Hz to 20 kHz). Preamplifier electronics fit in 0.94 in. long housing, and overall length (including connectors) of 1.4 in. accommodates space-constrained test environments. Noise floor allows measurements from 15 dBA to 147 dB with appropriate microphone. Read More

Electronic Components & Devices

Short Preamplifier enables acoustic testing in tight spaces.

September 29, 2014

Supplied in 1.2 in. long housing, Model 426A07 converts high impedance signal from measurement microphone into low impedance signal. Unit can be paired with any PCB® ¼ in. free-field, random incidence and pressure microphone cartridges to test high frequencies ranging from human audible range of 20 Hz to 20 kHz up to ultrasonic frequencies greater than 100 kHz and high amplitude measurements past human threshold of pain, up to 194 dB. Read More

Electronic Components & Devices

Outdoor Preamplifier features automatic calibration check.

September 16, 2013

Suited for remote sound level measurement, Model PRM2103 operates with Model 831 Sound Level Meter, 377B02 microphone, and environmental shroud for portable or permanent outdoor use in wide range of weather conditions. Automatic calibration checks 5 different frequencies simultaneously, enabling detection of any failure. When used with sound level meter, acoustic response can be selected as free-field, random, or 90° using setting on meter. Read More

Electronic Components & Devices

Microphone Preamplifier withstands temperatures up to 257°F.

February 1, 2013

With Model 1706, engineers can make acoustical measurements nearer to sound or noise source of hot devices, such as gas turbines and automotive engines and exhaust systems. Preamplifier can be used with Smart Transducer interface, which is in accordance with IEEE 1451.4 standard. In addition, Model 1706 can be used in combination with free-field or diffuse-field ½ in. microphone, where data of preamplifier/microphone combination are stored in transducer electronic data sheet. Read More

Sensors, Monitors & Transducers, Electronic Components & Devices

Acoustic Measurement Microphones feature prepolarized design.

September 10, 2012

Consisting of microphone and preamplifier combinations, ¼ in. Models 378C01 and 378C10 measure frequencies to 100 kHz and amplitude to 165 dB. Free-Field Model 378C01 is suitable for automotive and aerospace noise source location and array applications, while Pressure Response Model 378C10 is typically used in noise absorption applications within impedance tubes, or general noise testing in cavities or small enclosures. Both are powered by 2-20 mA signal conditioner and standard coaxial cables. Read More

Electronic Components & Devices

Preamplifiers enable high-performance, low-power HDDs.

November 22, 2011

Delivering operating speeds of up to 5.0 Gbps, TrueStore® PA5100 and PA5200 low-power preamplifier integrated circuits (ICs) accommodate needs of notebook, desktop, and enterprise HDD markets. HDD manufacturers gain flexibility to deploy common IC capable of serving all HDD market segments, from 5.4K rpm notebook through 15K rpm enterprise HDDs. While PA5200 write driver uses dual-power design, PA5100 write driver operates from single power supply. Read More

Sensors, Monitors & Transducers, Electronic Components & Devices

Microphone and Preamplifier allow testing to +120°C.

August 3, 2011

Combining condenser microphone and preamplifier, Model HT378B02 helps overcome high temperature testing challenges associated with acoustic measurements in environmental chambers or other high temperature applications. Unit is used by test engineers to measure sound pressure amplitude and perform frequency analysis to minimize noise, identify resonance frequencies, and preserve human hearing. Typical applications include automotive engine testing, aerospace engine tests, and pump analysis. Read More

Sensors, Monitors & Transducers, Electronic Components & Devices

Free-Field Microphone, Preamplifier offer TEDS capabilities.

January 20, 2011

As combined ½ in. free-field pressure microphone and iTEDS enabled preamplifier (per IEEE 1451.4) set, Endevco® model EM46AE is designed for general-purpose and larger channel count precision acoustic measurements. Condenser microphone and preamplifier are both constructed of stainless steel and calibrated together. With frequency response from 3.15 Hz to 20 kHz and dynamic range of 14 dBA to 135 dB, set is designed according to IEC 61094 Class 1 standard guidelines. Read More

Sensors, Monitors & Transducers, Electronic Components & Devices

Combined Microphone/Preamplifier suit various testing applications.

August 11, 2010

Endevco® model EM46BD combines ¼ in. ISOTRON® pressure microphone and TEDS-enabled preamplifier in preassembled kit that is constructed of stainless steel. Designed to IEC 61094 Class 1 standard, microphone has 10 Hz to 70 kHz audio frequency range and wide dynamic range. Device uses TEDS technology that allows for microphone and preamplifier to be recognized by smart-transducer compatible input module. Unit is suited for aerospace, automotive, and general laboratory testing applications. Read More

Electronic Components & Devices, Optics & Photonics

Photodiode Preamplifier is suited for fluorescence detection.

November 17, 2008

Blue/green enhanced silicon photodiode preamplifier, ODA-6WB-500M, operates between 400-1,100 nm, with peak spectral frequency at 940 nm. Sensitivity response is 140 V/µW (min 100), typ, at 450 nm. Transimpedance gain is 500 Mohm, with custom gains available upon request. Hermetically sealed in 6 mm² TO-39 housing, device operates in -25 to 100°C temperatures and is suited for fluorescence detection and low-light-level medical diagnostic applications. Read More

Electronic Components & Devices

Preamplifier IC targets HDD market.

June 19, 2008

Usable in both 2.5 and 3.5 in hard disk drives, PA8800 preamplifier utilizes silicon-germanium processes to deliver operating speeds at 3.3 Gpbs with low power consumption. Power-saving features help decrease heat dissipation for greater drive reliability. Read More

Communication Systems & Equipment, Electronic Components & Devices

Preamplifier has -0.06 dB attenuation factor.

March 19, 2008

Designed for NVH powertrain and vehicle underhood testing applications, Model HT426E01 high temperature preamplifier operates from ICP® sensor power, terminating with BNC connector and utilizing standard coaxial cables. With ability to operate to +120°C, it measures ½ in., and features noise characteristics of 4.9 µV based on A-weight scale. Common automotive applications include underhood measurements, near-field measurements on manifolds, and exhaust after treatment components. Read More

Sensors, Monitors & Transducers, Electronic Components & Devices

Microphone is suited for NVH studies and biomedical research.

August 15, 2007

Designed for 2D pressure mapping, holography, trending, and frequency analysis, Model 130D22 is combined ICP® free field response pre-polarized array microphone and preamplifier that measures sound pressure levels and frequencies in audible range. It features SMB connector that offers seamless transition for data acquisition systems and software set-ups. Unit can be used simultaneously with ICP® accelerometers, has 45 mV/Pa sensitivity, and utilizes coaxial cables. Read More

Test & Measuring Instruments, Electronic Components & Devices

Preamp provides CMM retrofit solution.

September 30, 2004

Designed for use with Brown and Sharpe reader heads, Deva 023-1SIN-BS1 reader-head preamp performs necessary signal conditioning required for use with Deva 018 Sine Wave Interpolator. It has 15-way D-type connector at one end, which is pin-compatible with existing reader head. Other end of module has high-density, 15-way D-type connector that mates directly with 018 interpolator without custom cabling. Four trim pots scale and offset sine wave signals. Read More

Electronic Components & Devices

Microphone Preamplifier supports TEDS.

April 20, 2004

Featuring 7-pin LEMO connector, ½ in. Model PRM905 can be used with both prepolarized and externally polarized microphones. It is characterized by wide frequency range and low noise floor. Low output impedance and high output current permit it to drive very long microphone extension cables. Unit is suited for acoustic engineers using analyzers which support Smart Transducer Interface IEEE P1451.4 with TEDS (Transducer Electronic Data Sheet). Read More

Electronic Components & Devices

Phono Preamplifier operates from batteries or power mains.

November 24, 2003

Model 4041 is a rack-mount version of Model 404A Stereo RIAA Phono Preamp for both moving magnet and moving coil pickup cartridges. It is powered from furnished dc wall supply or internal rechargeable batteries, and has internal shielding to minimize pickup of unwanted interference. Read More

Electronic Components & Devices

Microphone Preamplifiers feature rugged SS construction.

November 14, 2003

Models PRM426 and PRM422 are low noise, general-purpose, prepolarized microphone preamplifiers powered by 2-20 mA, constant current, ICP® sensor power supply. They accept ½ and ¼ in. microphones, respectively, and are compatible with TEDS standard IEEE P1451.4 as preamplifier, or as integrated microphone/preamplifier when paired with precision microphone. In-Line ICP® A-Weighting filter is available for filtering output signal from Model PRM426. Read More

Electronic Components & Devices

Preamplifier drives computer sound-card line input.

April 9, 2003

Model 421 High-Performance Stereo Microphone Preamp features 2 identical, differential input stages that use compound transistor pairs with circuit resistance values computer-optimized for very low output noise. Dynamic range is nearly 70 dB at full gain of 60 dB. Internal rechargeable batteries provide complete isolation from power mains, and cast-aluminum enclosure minimizes pickup of unwanted interference. Read More