Preamplifiers

The ORTEC Model 142IH charge-sensitive preamplifier is an economical and general-purpose instrument that can be used for universal applications such as x-ray, low- and high-energy gamma-ray spectroscopy, and also for alpha and other charged-particle spectroscopy. ...more

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. ...more

Instrumentation Preamplifier ...more

The Model VT120 Fast-Timing Preamplifier is a high-performance, wide-bandwidth preamplifier designed for boosting very fast linear signals from microchannel plates, photomultipliers, electron multipliers, silicon detectors and other detectors used in fast timing applications. The rise time on all versions is <1 ns with a 5-V output, enablin ...more

Wide bandwidth of 150MHz and rise time of 2.5ns   Switchable 50 ohm/1M ohm input impedance, and 10M ohm input impedance using an optional probe.  Low DC drift  DC offset adjustment using an externally applied voltage.   ...more

The Universal Preamplifier 8 (UP8) is specially designed for operation with the new RWA 2000 series and can achieve a maximum data rate only with the 2002, 2003, and 2004 models. At the same time, it can be used with our previous generation of test equipment such as the RWA2585.   ...more

The ORTEC Model 9306 1-GHz Preamplifier is optimized for fast timing and counting applications with detectors that deliver pulses with ultra-fast rise times. An output rise time of 350 ps and a non-inverting gain of 100 make the Model 9306 ideal for use with microchannel plates, microchannel-plate photomultipliers, channeltrons, silicon diodes ...more

The Active Antenna Feeds HL024S consist of the Crossed Log-Periodic Antenna HL024A1 with a broadband preamplifier unit and a polarization switching network (HL024S9 only). The antenna feeds are optimally matched to the SHF Directional Antenna Systems AC008, AC090, AC120, AC180, AC300. ...more

The Model 9326 Fast Preamplifier is optimized for amplifying the pulses from microchannel-plate detectors, electron multipliers, photomultiplier tubes, fast photodiodes, and silicon charged-particle detectors. The fast rise times of these detectors are preserved by the <1-ns rise time of the Model 9326 output, which can supply 0 to ?1-V pul ...more

Instrumentation Preamplifier ...more

The SIM910 and SIM911 are low-noise, programmable preamplifiers which are ideal for a wide range of small signal applications. The primary differences between the two models are their input impedance and input noise.  ...more

SA series are preamplifiers for submicro-signal detection, which have been developed to assure noise reduction never before accomplished. 7 types of SA series amplifiers, which vary by a frequency range, input form, and input impedance, are available. ...more

Since an ever increasing number of people wearing hearing aids use mobile phones, immunity tests of the hearing aids have to be carried out with higher field strength in the frequency range concerned. The R&S Test System TS9981H allows the immunity of hearing aids to be tested according to IEC / EN60118-13 (Draft 2001). Depending on the op ...more

The SR552 Voltage Preamplifier is designed to work with SRS lock-in amplifiers, providing gain where it is needed most?right at the experiment. The preamplifier minimizes noise and pickup in the connecting lines and can reduce measurement time in noise-limited experiments.  ...more

The ORTEC Model 142PC Preamplifier is a low-noise charge-sensitive unit especially designed for use with proportional counters requiring up to ±3000 V detector bias.  ...more

The Model 474 Timing Filter Amplifier is especially designed to shape pulses and permit optimizing the signal-to-noise ratio for timing measurements. The Model 474 is particularly suited for use with an ORTEC Constant-Fraction Timing Discriminator in timing applications with germanium or silicon charged-particle detectors (Fig. 1). It derives ...more

The Model SR445A 350 MHz Preamplifier contains four wide-bandwidth, DC-coupled amplifiers, each with a gain of 5. The four channels may be used independently, or cascaded to provide a total gain of up to 625. ...more

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 ...more

Model 142C is optimized for extremely low noise and fast timing for detectors with capacitance greater than 400 pF. ...more

Set offer consisting of the HF59B and a wide range of accessories: Horizontal isotropic ultra broad bandwidth antenna UBB27_G3 from 27 MHz up to far beyond 3.3 GHz (limited by the frequency response of the HF59B). 800 MHz high pass filter HP800_G3 for the suppression of low frequencies when measuring with the log.-per. antenna of the HF59B. Hig ...more

The SR550 Voltage Preamplifier is designed to work with any SRS lock-in amplifier. Preamplifiers provide gain close to the experimental detector, before the signal-to-noise ratio is permanently degraded by cable capacitance and pickup ...more

Instrumentation Preamplifier ...more

Model 142B is optimized for extremely low noise and fast timing for detectors with capacitance greater than 100 pF but less than 400 pF. ...more

The ORTEC Model 671 high-performance, energy spectroscopy amplifier is ideally suited for use with germanium, Si(Li), and silicon charged-particle detectors. It can also be used with scintillation detectors and proportional counters. The Model 671 input accepts either positive or negative polarity signals from a detector preamplifier and provi ...more

The ORTEC Model 9301 low-noise, fast-rise-time Preamplifier has been designed for use with photomultipliers, electron multipliers, and other detectors employed in photon counting, ion counting, or fast-timing applications.  ...more