Preamplifiers
Detect and strengthen a signal prior to greater amplification.
See Also: Amplifiers, RF Amplifiers, Current Amplifiers, Audio Amplifiers, Voltage Amplifiers, Transconductance Amplifiers, Op Amps, Klystron, Instrumentation Amplifiers, Distribution Amplifiers
-
Product
Preamplifiers
-
Is an electronic amplifier that converts a weak electrical signal into an output signal strong enough to be noise-tolerant and strong enough for further processing, or for sending to a power amplifier and a loudspeaker.
-
Product
Preamplifiers
-
The primary function of a preamplifier is to extract the signal from the detector without significantly degrading the intrinsic signal-to noise ratio. Three basic types of preamplifiers are available: the current-sensitive preamplifier, the parasitic-capacitance preamplifier, and the charge-sensitive preamplifier. ORTEC manufactures a preamplifier to fit your detector, your application, and your budget.
-
Product
Preamplifiers
-
A.H. Systems'' Preamplifier line is an excellent choice with a rugged design, no hassles with soldering your own power leads and they improve overall system sensitivity by at least 20 dB. All of A.H. Systems'' Preamplifiers come with a 12-volt (or 15-volt) DC regulated power source. A low voltage indicator confidently allows you to power the amplifier with your own external 12-volt DC battery. This makes it a convenient choice for field measurements. See table below for amplifier specifications.
-
Product
Low Noise Differential Preamplifiers
-
Provide a high gain amplification to 1MHz with an AC output derived from a very low noise FET instrumentation amplifier. Each model has fixed gain settings of x1 (0dB), x10 (20dB), x100 (40dB) and x1000 (60dB) over a selectable bandwidths of 100Hz, 1kHz (HP), 3kHz, 30kHz, 100kHz and 1MHz (7000 model only). Noise referred to input is 7nV√Hz and common mode rejection is >100dB at 1kHz. Momentary pushbutton switches are provided that control coupling, bandwidth, gain and channel on/off selections. BNC connectors are provided for single-ended and differential input, ac output, and dc output (optional) connections.
-
Product
Microphones/Preamplifiers
-
To apply gain to (amplify) the signal without changing how the signal sounds.
-
Product
Signal Processor Board
MS 1532
-
- Frequency coverage from 5 kHz to 30 MHz in 1-Hz steps- High dynamic range: +30 dBm 3rd-order intercept typical- Digital filtering provides 58 IFBWs from 56 Hz to 8.0 kHz with exceptional shape factors- AM, Synchronous AM, FM, CW, USB, LSB & ISB detection modes standard- Tunable notch filter- Fast, flexible scanning with 100 memory channels- Large readable LED displays & user-friendly controls- Noise blanking & pass band tuning- Internal switchable preamplifier & attenuator- Operator-selectable RS-232, RS-485, or- RS-422 remote control- Viretx 5 FPGA based design (Two virtex for image processing)- LPC2468 ARM 7 Processor based design- MIL1553B and RS485 Interface- Two High speed 14 bit ADC (125MSPS) for I & Q Sampling- Direct sampling 2-30MHz- Audio CODEC- Conduction Cooled Board
-
Product
C-Band DWDM Pre-Amplifier EDFA (WPA-C)
HWA4300 (With SNMP)
-
Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai HWA4300 series, is designed for C-Band 44 waves or 88 waves DWDM system design Pre-Amplifier gain flatness. Products using the most excellent optical performance, the most advanced electronic control technology and comprehensive software features, has a wide operating wavelength range, Low noise, excellent gain flatness characteristics and transient characteristics.
-
Product
Breakout Module
PXI-PDM
Breakout Module
The PXI Preamplifier Power and Trigger Breakout Module (PXI PDM) is an accessory for the Pixie-4 system.
-
Product
Components for System Integration
-
Bh offers a wide range of accessories to improve your photon counting experiment such as experimental control modules, optomechanics or implantable fiber probes for in-vivo applications. For PMTs and MCPs we offer different preamplifiers and a variety of routing devices for multi-detector operation. For a perfect SYNC signal, trigger modules and a SYG are available.
-
Product
Low Noise Amplifiers for Radio Amateurs
-
Our Low Noise Preamplifiers are remarkable for extremely low noise, excellent SWR, high efficiency and a high IP3. The Low Noise amplifiers are especially selective and absolute stable therefore oscillation is avoided. Even if you have a bad SWR. This is the reason why radio amateurs and club-stations all around the world trust in Kuhne electronic equipment. The products are perfect for use in contests, EME, MeteorScatter, Aurora and Tropo DX. Small mechanical measurements and technical innovations from the professional sector, e. g. milled aluminium cases, enable high temperature stability and tower mounting. Numerous contest victories, records and first contacts with a country were and are achieved with Kuhne products. Don't compromise and get technology from Kuhne electronic!
-
Product
Electronic Instruments
-
The ORTEC range of modular electronics includes instruments in NIM formats as well as other modular instruments, such as photomultiplier bases, preamplifiers and other accessories. ORTEC also offers modular instruments for pulse height spectroscopy, fast timing, counting, high voltage power supplies and other special functions.
-
Product
X-Ray Preamplifier Power Supply
-
The X-ray Preamplifier Power Supply (XPPS) provides power for 50 or more preamplifiers. The 19-inch rack-mount or benchtop unit contains linear power supplies that generate +/-12V @ 5.1 Amperes and +/-24V @ 3.6 Amperes, with very little noise.
-
Product
Filtered Preamplifers
FPA
-
These low noise figure, high gain preamplifiers provide low system noise figure andallow longer antenna to receiver cable lengths. Preamplifiers can be specified withseveral filter configurations.
-
Product
Mini Receiver
FB7-NX
-
In about 1935, the National Radio Company of Malden, Mass., brought out a “hot” high frequency receiver, called the FB7, and the subsequent FB-7X. It featured a super-hetrodyne design with plug-in coils that gave it a broad frequency range. The “X” model also incorporated a crystal filter in the intermediate frequency section, thus giving it additional selectivity. The receiver was viewed by radio amateurs as a technological breakthrough, and it was also used commercially for point to point high frequency communications. As the receiver did not have an internal RF amplifier section, a separately tunable RF amplifier was later provided in a separate enclosure for additional performance capabilities. Now, National RF, Inc., is resurrecting the fabled receiver name with an all solid-state, hot mini receiver, which also utilizes plug-in coils to cover the HF spectrum. The mini-receiver is designed for use by radio amateurs as well as serious short-wave listeners, and allows reception of AM, CW, and SSB signals. It incorporates a super-hetrodyne design with a dual gate FET built-in RF preamplifier and a ceramic filter for selectivity, often required when used in a crowded amateur radio band. In addition, the receiver has a buffered rear panel output of the high frequency oscillator for use with either a frequency counter for exact receive frequency display, or for interface with an outboard transmitter. A rear panel jack is also provided for muting the receiver when a transmitter is placed into the transmit mode. And, the receiver is small enough to fit into carry-on luggage and taken on trips when it is desired to “keep an ear” on amateur radio or other high frequency activity. The receiver utilizes rear panel plug-in coil assemblies which contain the RF amplifier, mixer, and oscillator tuned circuits. Each plug-in coil assembly also comes with a separate dial scale, which is inserted onto the front panel for displaying the tuned frequency. A very smooth 6 to 1 planetary drive is used for tuning the receiver. Other front panel controls include RF preamplifier peak, volume control, Beat Frequency Oscillator adjustment, and RF gain control. Other switches include filter bandwidth, AM/CW/SSB selection, Power, and a general coverage/band spread control for certain plug-in assemblies. The receiver is intended to drive head-phones via a rear panel jack, but has sufficient output to drive a small external speaker.
-
Product
FieldFox Handheld Microwave Signal Analyzer, 54 GHz
N9963B
Signal Analyzer
A lightweight, durable, software-enabled, microwave signal analyzer, interference analyzer, distance-tracking generator, preamplifier, power meter, and more.
-
Product
TURBO-TENNA 137 MHz Weather Satellite Antennas
WX-137 SERIES
-
The WX-137 series of antennas are marine-grade 137 MHz circularly polarized antennas designed to receive weather satellite images from the polar orbiting NOAA and Meteor satellites. Manufactured from stainless steel and ABS plastics, the assemblies are sealed and designed to survive marine service, although they may be used on land as well. Each antenna is available with or without a gasfet preamplifier which provides about 16 dB of gain and is physically located adjacent to the antenna.
-
Product
Externally Polarized Precision Condenser Microphones & Preamplifiers
-
Externally polarized microphones set the initial standard for all acoustic test and measurement applications. They rely on a dedicated 200V power supply and specialized cables with 7-pin LEMO® connectors. Their straightforward design supports a wide product range. Often chosen as replacements for existing models or when prepolarized alternatives are unavailable.
-
Product
Low Cost Microwave Wideband APD Preamp Receivers
MR11 (40KHz~18GHz)
-
Hangzhou Huatai Optic Tech. Co., Ltd.
MR11 series microwave wideband optical receiver, adopts high Sensitivity APD diode and Low Noise Preamplifier IC, within bandwidth of 40KHz~18GHz, they are featured with excellent linearity, high responsibility and superior flatness of the RF response in both, power and phase. They provide an outstanding linearity fiber optical communication for analogue wideband microwave application. Due to avoidance of using expensive coaxial cable or wave-guide, there will be no limitation in transmission distance, which improves the signal quality and reliability of the microwave communication. They can be widely applied in microwave communication system such as remote wireless, timing and reference signal distribution, telemetry, measurement and delay line etc as well as 10Gb/s high speed communication system.
-
Product
CZT Gamma-Ray Detector Spectrometer
GR Family
-
The Kromek GR family is a range of CZT-based high-performance gamma-ray spectrometers. They are completely self-contained, with built-in preamplifier, shaping amplifier, baseline restorer, pulse height digitizer, and HV supply. The digitized pulse heights of detected gamma-ray signals are sent to a PC via the USB. The unit is powered entirely from the USB bus, so no external power supply is needed.
-
Product
Low-Noise Voltage Preamplifier
SR560
-
Stanford Research Systems, Inc.
The SR560 is a high-performance, low-noise preamplifier that is ideal for a wide variety of applications including low-temperature measurements, optical detection, and audio engineering
-
Product
DryLoc pH/ORP Preamplifier and Connectors
2760
-
The 2760 preamplifier allows any DryLoc pH/ORP electrode to work with Signet ProcessPro and ProPoint pH/ORP instruments. It is also sold as a simple connector for use with other manufacturers' instruments that do not require a preamplified signal.
-
Product
Lock-in Amplifier/Preamplifiers
-
Detecting and measuring AC signal''s amplitude or phase buried in noise, as high sensitive AC Voltmeter with noise immunity.This equipment is used by many customers like at the fields of physics and science including spectroscopic analysis.
-
Product
Sound Level Meter
831-LOWN
-
Easily make low noise measurements to 6.5 dB A-weighted using the Model 831-LOWN sound level meter paired with the 378A04 low noise microphone and preamplifier. Due to the innovative design of the 378A04 which uses a prepolarized microphone and ICP (constant current) interface, the combination produces a highly portable system that is battery powered and intuitive to use for measuring low noise levels.
-
Product
FieldFox Handheld Microwave Spectrum Analyzer, 6.5 GHz
N9934B
Spectrum Analyzer
A lightweight, durable, microwave spectrum analyzer, interference analyzer, distance-tracking generator, preamplifier, power meter, and more.
-
Product
Saluki SE4002 FET Input Preamplifier
-
The SE4002 is a low-noise, ultra-high input impedance preamplifier with excellent common-mode rejection. It is designed to work with any Saluki digital lock-in amplifier. The preamplifier minimizes noise and pickup in the connecting lines and reduces measurement time in noise-limited experiments.
-
Product
Low Noise Current Preamplifier
SR570
-
Stanford Research Systems, Inc.
The SR570 is a low-noise current preamplifier capable of current gains as large as 1 pA/V. High gain and bandwidth, low noise, and many convenient features make the SR570 ideal for a variety of photonic, low temperature and other measurements.
-
Product
Waveguide Harmonic Mixer, 75 to 110 GHz
11970W
-
The 11970W extends the frequency range of the Keysight N9030A PXA high-performance signal analyzer to the W-band (75 to 110 GHz). It is also fully compatible with other Keysight spectrum analyzers including: the E4440A/46A/48A PSA (with Option AYZ), the E4407B ESA-E (with Option AYZ), the 856xEC, the 8566B (with a preamplifier), and the 7000 modular analyzer (with the 70907A/B external mixer interface module).
-
Product
Microphone preamplifier
PRE-01
-
The microphone preamplifier PRE-01 has been designed to match Audiomatica’s microphones MIC-01, MIC-02 andMIC-03. It is particularly useful when the microphone has to be operated far from the analyzer or when weighted measurements are needed. PRE-01 powers the microphone connected to its input with an 8.2V phantom supplyand adds a selectable weighting filter (A or B or C); also available there is a 20 dB gain stage
-
Product
Energy Probes
RjP-600 Series
-
The RjP-600 Series energy probes integrate the detector and preamplifier in the same enclosure, thereby maximizing signal integrity between the detector and preamplifier. This permits longer cable runs between the probe and instrument, as is often necessary in production environments. Probe specific information, like calibration date and wavelength response curves, is stored in the probe for access by the instrument. Other features include interchangeable filter holders and ¼-20 mounting hole.
-
Product
Signal Conditioning
-
Various preamplifiers and signal converters extend the range of applications for Elsys data acquisition systems.
