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Showing 41–60 of 184 results

  • Princeton Applied Research 186A Synchro-Het Lock-In Amplifier (parts only)

    $100.00

    Princeton Applied Research 186A Synchro-Het Lock-In Amplifier (parts only)
    Needs Repair; Parts Only
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    ***68078***

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  • Symmetricom 6502 Distribution Amplifier (parts only)

    $60.00

    Symmetricom 6502 Distribution Amplifier (parts only)
    Needs Repair; Parts Only
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    ***67992***

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  • Jeol BEI Preamplifier

    $125.00

    Jeol BEI Preamplifier
    Good Condition
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    ***67945***

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  • Kalmus 150 50w 15-50MHz RF Amplifier

    $200.00

    Kalmus 150 50w 15-50MHz RF Amplifier
    Good Condition
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    ***67940***

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  • Tron-Tech RF Amplifier CDR11-134-001

    $175.00

    Tron-Tech RF Amplifier CDR11-134-001. No manual or other documents. Unknown specifications. Offered as PARTS/REPAIR
    Good Condition
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    ***67939***

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  • Thermal Control A020 RF Power Amplifier

    $150.00

    Thermal Control A020 RF Power Amplifier
    Good Condition
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    ***67891***

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  • Inline 3248 Stereo Audio Distribution Amplifier (in original box)

    $300.00

    Inline 3248 Stereo Audio Distribution Amplifier (in original box)
    Great Condition
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  • Inline IN3216R Video Distribution Amplifier/Line Driver

    $185.00

    Inline IN3216R Video Distribution Amplifier/Line Driver
    Good Condition
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  • Inline 3248 Stereo Audio Distribution Amplifier

    $185.00

    Inline 3248 Stereo Audio Distribution Amplifier
    Good Condition
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  • Frequency Electronics RF Amplifier FE-700

    $325.00

    Frequency Electronics RF Amplifier FE-700
    Fair Condition
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  • Dukane Power 35 1A1335 Solid State Amplifier

    $85.00

    Dukane Power 35 1A1335 Solid State Amplifier
    Fair Condition; Needs Work
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    ***67223***

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  • Ball Aerospace & Tech Direct Box Low Noise Amplifier

    $500.00

    Ball Aerospace & Tech Direct Box Low Noise Amplifier
    Good Condition
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    ***65969***

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  • Microwave Power Devices Solid State Amplifier PA300-12/4007 Freq 300 MHz

    $150.00

    Microwave Power Devices Solid State Amplifier PA300-12/4007 Freq 300 MHz
    Needs Repair
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    ***65927***

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  • Amplifier Research 5W1000

    $2,200.00

    Amplifier Research 5W1000
    Laboratory RF amplifier 500 Khz –
    1Ghz 5 watts.Tested with R.F.
    Synthesizer and Spectrum

    Good Condition
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    ***65923***
    Analyzer throughout bandwidth
    – O.K.

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  • Isomet RF Amplifier

    $750.00

    Isomet RF Amplifier
    Good Condition
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    ***65690***

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  • Custom Rack Mount 50 Watt HF Power Amplifier 1-30 Mhz 47dB gain

    $300.00

    Custom Rack Mount 50 Watt HF Amplifier 1-30 Mhz.
    Units made for the Austrailian Military. No manual,
    specifications, schematic or other information is
    available. Units marked 240 volts but internal PSU
    is rated for 100-240 volts. Units tested with RF
    signal generator (AM 1K 80%) and attenuated
    spectrum analyzer at 1 & 30Mhz at 0dBm input with
    +47dBm (50 Watts) output at both. Amplifier functions
    above 30 Mhz with a sharp drop off. *Uncalibrated
    (reference only) surplus test equipment used.
    BNC Input, “N” female output and -45dBc
    BNC monitor connectors. Front VSWR metering.
    Quiet cooling fans with cleanable filters. High
    VSWR warning L.E.D. and shutdown with reset.
    Over temperature warning L.E.D. and protection.
    Over input warning L.E.D. Remote capability
    (unknown ethernet connection). We have other
    RF amplifiers in our inventory. Check the search
    box above.

    Good Condition
    Check BMI Stock for More Items
    ***65195***

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  • MCL MT3300 TWT AMPLIFIER (Like New !!)

    $9,500.00

    MCL MT3300 TWT AMPLIFIER-The MT3300 series amplifiers contain an integrated filament off state to conserve power and extend tube life. This series amplifier is constructed for extreme environments and provides a software communications configuration for both remote and computer ethernet interfaces

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  • Ithaco 391A Lock-In-Amplifier

    $300.00

    Ithaco 391A Lock-In-Amplifier.
    Basic tracking test O.K. Original
    card set. With power cable. No
    manual or accessories.
    Many more Lock-In-Amplifiers
    functioning and parts units
    are in stock.
    ***MPN 391A
    ***OEM Ithaco
    ***SKU*** 64728

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  • Stanford Research SR552 Bipolar Preamplifier

    $245.00

    Untested Stanford Research SR552 Bipolar Preamplifier
    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. The
    SR552 has a bipolar front-end design (100 kΩ impedance,
    1.4 nV/√Hz noise). Power and control signals are brought
    from the lock-in by a 9-pin cable (not included). The SR552 may
    also be operated independently by applying appropriate power
    supply voltages (±20 VDC, +5 VDC).
    ***MPN SR552
    ***OEM Stanford Research
    ***SKU*** 42240

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  • Anfatec eLockedIn 204/2 Amplifier

    $4,000.00

    This is a Anfatec eLockedIn 204/2 Amplifier..
    4-phase DSP lock-in amplifier
    LOCK-IN AMPLIFIER 10 mHZ TO 1 MHZ.

    Unit powers on and completes self test. Fan quiet.
    Unit tested O.K. with signal and noise generator.
    Specifications from manufacturers website:

    The eLockIn model 204 is a versatile scientific instrument that supports the following
    functions:
    LockIn Amplifier
    Digital Oscilloscope
    Spectrum Analyzer
    Data Acquisition

    General
    Digital Quad(1)-Phase Lock-In Amplifier
    Dynamic Reserve > 135 dB (1)
    Noise 1 MHz)
    Full Scale Input Ranges ± 5 V, ± 500 mV, ± 50 mV (1)
    Input Noise: Uac = 0 V, 50 Ω @ input
    @ 100 kHz, high dynamic < 300 nVrms/Hz0.5 (1)
    @ 100 kHz, normal dynamic < 50 nVrms/Hz0.5 (1)
    @ 100 kHz, low dynamic < 6 nVrms/Hz0.5 (1)
    Roll-Off 6 dB/oct, 12 dB/oct, 24 dB/oct
    Time Constants 0.1 ms to 1 ks in1-2-5 steps (1)
    or in Sync-Mode:
    1/f to 200/f in 1-2-5 steps
    Gain Deviations between Dynamic Ranges: < 5 %

    Manual available online provided by Antatec at http://www.anfatec.com/anfatec/eLockIn204.pdf

    BMI Surplus, Inc. has a huge inventory of used, new and pre-owned Amplifiers for sale.
    We will work with you individually to find the perfect set up for your application.
    Buy online or give us a call at 781-871-8868. We have experienced customer service representatives standing by ready to help you!

    **Shipping, Handling fees depend on your location..
    We will provide a freight quote to meet your individual needs and work with you if you prefer to use your own carrier.
    We have 32 years of experience shipping sensitive scientific instruments and industrial equipment!

    Don’t see what you are looking for? Use our orange search box on the top right hand corner of this page to customize your search..
    ***MPN 204/2
    ***OEM Anfatec
    ***SKU*** 60843

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