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Used Amplifiers

  • Trusted Seller
    Micro Switch FMF111-AV Proximity Control

    Micro Switch FMF111-AV Proximity Control Amplifier New

    • Manufacturer: Micro Switch

    This is a new Micro Switch Proximity Control Amplifier. Save thousands and buy new from Green Industrial today!

    $375 USD
    Belgium, WI
  • Trusted Seller
    Amplifier Research DC7144A

    Amplifier Research DC7144A

    • Manufacturer: Amplifier Research
    • Model: DC7144A

    800 MHz to 4.2 GHz 40 dB Dual Directional Coupler Amplifier Research DC7144A 800 MHz to 4.2 GHz 40 dB Dual Directional Coupler and other Directional Couplers - Above 4 GHz to 18 GHz for sale at Test Equipment Cen...

    Cary, NC
  • Trusted Seller
    TeleDiagnostic Systems Isolated Patient Amplifier

    TeleDiagnostic Systems Isolated Patient Amplifier Module DT-24

    • Manufacturer: Unknown

    Elkin, NC
  • Trusted Seller
    St. Jude Medical Ensite Velocity

    St. Jude Medical Ensite Velocity Amplifier EE3000

    • Manufacturer: St. Jude Medical
    • Model: EE3000

    Powers on unable to fully test. Minor scratches

    $2,000 USD
    Elkin, NC
  • Trusted Seller
    Warner Electric TD330/04 Superior Slo-Syn

    Warner Electric TD330/04 Superior Slo-Syn TD Series Servo Amplifier

    • Manufacturer: Warner Electric

    You are buying one (1) used Warner Electric TD330/04 Superior Slo-Syn TD series servo amplifier.

    $699 USD
    Austinville, VA
  • Trusted Seller
    Keyence Digital Laser Sensor Amplifier

    Keyence Digital Laser Sensor Amplifier LV-N11CP New In Box

    • Manufacturer: Keyence

    You are buying one (1) Keyence digital laser amplifier LV-N11CP. It is new in box. I have four of these and will give you a discount if you buy more than one.

    $269 USD
    Austinville, VA
  • Electro-Craft BRU-Series Servo Amplifier 9101-1669

    Electro-Craft BRU-Series Servo Amplifier 9101-1669 Universal Instrument 47621601

    • Manufacturer: ElectroCraft

    Electro-Craft Servo Amplifier Model: 47621601 Part# 9101-1669 4Tech Electronics Contact Info To find out about current specials or package deals please send us a email or give us a call. Payment Policy Payment mu...

    $600 USD
    Webberville, MI
  • Trusted Seller
    Amplifier Research 50L

    Amplifier Research 50L

    • Manufacturer: Amplifier Research
    • Model: 50L

    1 MHz to 240 MHz 50 Watt RF Power Amplifier Amplifier Research 50L 1 MHz to 240 MHz 50 Watt RF Power Amplifier and other Amplifiers Above 1 MHz up to 1 GHz / Over 10 up to 50 Watts for sale at Test Equipment Center.

    Cary, NC
  • Trusted Seller
    Amplifier Research 75A250A

    Amplifier Research 75A250A

    • Manufacturer: Amplifier Research
    • Model: 75A250A

    10 kHz to 250 MHz 75 Watt Low Power RF Amplifier Amplifier Research 75A250A 10 kHz to 250 MHz 75 Watt Low Power RF Amplifier and other Amplifiers Above 1 MHz up to 1 GHz / Over 50 up to 500 Watts for sale at Test...

    Cary, NC
  • Trusted Seller
    Amplifier Research 50A15

    Amplifier Research 50A15

    • Manufacturer: Amplifier Research
    • Model: 50A15

    20 kHz to 15 MHz 50 Watt Broadband RF Power Amplifier Amplifier Research 50A15 20 kHz to 15 MHz 50 Watt Broadband RF Power Amplifier and other Amplifiers Above 1 MHz up to 1 GHz / Over 10 up to 50 Watts for sale ...

    Cary, NC
  • Trusted Seller
    Amplifier Research 200L

    Amplifier Research 200L

    • Manufacturer: Amplifier Research
    • Model: 200L

    1 MHz to 200 MHz 200 Watt Broadband RF Power Amplifier Amplifier Research 200L 1 MHz to 200 MHz 200 Watt Broadband RF Power Amplifier and other Amplifiers Above 1 MHz up to 1 GHz / Over 50 up to 500 Watts for sal...

    Cary, NC
  • Trusted Seller
    Amplifier Research 150A400

    Amplifier Research 150A400

    • Manufacturer: Amplifier Research
    • Model: 150A400

    100 kHz to 400 MHz 150 Watt Mid-Power RF Amplifier Amplifier Research 150A400 100 kHz to 400 MHz 150 Watt Mid-Power RF Amplifier and other Amplifiers Above 1 MHz up to 1 GHz / Over 50 up to 500 Watts for sale at ...

    Cary, NC
  • Trusted Seller
    Amplifier Research 100A250A

    Amplifier Research 100A250A

    • Manufacturer: Amplifier Research
    • Model: 100A250A

    10 kHz to 250 MHz 100 Watt Low Power RF Amplifier Amplifier Research 100A250A 10 kHz to 250 MHz 100 Watt Low Power RF Amplifier and other Amplifiers Above 1 MHz up to 1 GHz / Over 50 up to 500 Watts for sale at T...

    Cary, NC
  • Trusted Seller
    Amplifier Research 150L

    Amplifier Research 150L

    • Manufacturer: Amplifier Research
    • Model: 150L

    10 kHz to 220 MHz 200 Watt RF Power Amplifier The Amplifier Research 150L 10 kHz to 220 MHz 200 Watt RF Power Amplifier is a self contained, broadband amplifier intended for laboratory applications where instanta...

    Cary, NC
  • Trusted Seller
    Amplifier Research 5000A225

    Amplifier Research 5000A225

    • Manufacturer: Amplifier Research
    • Model: 5000A225

    10 kHz to 225 MHz 5 kWatt High Power RF Amplifier Amplifier Research 5000A225 10 kHz to 225 MHz 5 kWatt High Power RF Amplifier and other Amplifiers Above 1 MHz up to 1 GHz / Over 500 Watts for sale at Test Equip...

    Cary, NC
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    Tektronix 7A12 Amplifier

    • Manufacturer: Tektronix
    • Model: 7A12

    Good condition Tektronix 7A12 Amplifiers. Located in France and other countries. Click request price for more information.

    France
2122232425

Overview

Amplifiers are electronic devices used to increase the power, voltage, or current of a signal. They are commonly used in audio systems to boost sound signals, ensuring clear and powerful audio output for entertainment systems, musical instruments, and professional audio equipment. They come in various types and sizes, catering to different needs from home audio systems to large concert venues.

FAQ

What should I consider when buying a used amplifier?

Consider the amplifier's power output, compatibility with your existing audio equipment, its condition, and brand reputation. Check for any signs of wear, damage, or previous repairs.

How do I ensure the amplifier is shipped safely to my location?

Use a reputable shipping service with experience in handling electronic equipment. Ensure the amplifier is properly packaged with adequate padding and protection from static and moisture.

What is the maintenance schedule for an amplifier?

Regular maintenance includes dusting the exterior, checking connections, and ensuring proper ventilation. Periodically, have a professional inspect the internal components for any signs of wear or damage.