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Used variable attenuators

  • Trusted Seller
    Krohn-Hite 3100

    Krohn-Hite 3100

    • Manufacturer: Krohn-Hite

    Frequency Range 10 Hz -1 MHz Attenuation Slope dB/Octave 24 Max Attenuation (dB) 80 Output Volt/Amps (RMS) 3 v/ 10 ma Variable Band-Pass Filter

    New Smyrna Beach, FL
  • Trusted Seller
    Protek B821

    Protek B821

    • Manufacturer: Protek

    Sweep Function Generator and Frequency Counter Sine, Square, Triangle, Ramp, Pulse, Skewed Sine and TTL Square Waveforms 0.2Hz to 20MHz Frequency Output (Sine wave) Built-in 8 digit 3.0GHz Frequency Counter Inter...

    New Smyrna Beach, FL
  • Trusted Seller
    Protek B2000

    Protek B2000

    • Manufacturer: Protek

    0.1Hz to 2GHz Frequency Range Measures Frequency, Period, Time interval, Ratio and Totalize 0.5 PPM temperature stability Channel A and Channel B have variable trigger level controls Large, bright 8 digit LED fre...

    New Smyrna Beach, FL
  • Trusted Seller
    Fluke 1952B

    Fluke 1952B

    • Manufacturer: Fluke
    • Model: 1952B

    Measures frequency (DC-80 MHz), frequency ratio, time interval, period, period averages, and a gateable totalize with 7-digit accuracy. Standard with two input channels (complete with X1 and X10 attenuators), AC ...

    New Smyrna Beach, FL
  • Fluke 7250A

    Fluke 7250A

    • Manufacturer: Fluke
    • Model: 7250A

    The Model 7250A is a Seven-digit universal counter-timer capable of measurements in frequency, period, period average, time interval, totalize, ratio, and self check mode. IN addition, counts per minute mode offe...

    Farmingdale, NJ
  • Racal 1998

    Racal 1998

    • Manufacturer: Racal
    • Model: 1998

    1.3GHz Frequency Counter The Racal-Dana 1998 frequency counter offer a combination of superior performance and measurement capability in a compact half-rack package. The 1998 utilize microprocessor control, toget...

    Hounslow, United Kingdom
  • Fluke 7250A

    Fluke 7250A

    • Manufacturer: Fluke
    • Model: 7250A

    This unit is an Universal Timer/counter. A broadband continuously variable, x100, analog attenuator lets you add just enough attenuation to minimize the input signal noise level and optimize the signal amplitude ...

    Webster, MA
  • Fluke 1952B

    Fluke 1952B

    • Manufacturer: Fluke
    • Model: 1952B

    This Universal Counter Timer measures frequency (DC 80MHz), frequency ratio, time interval, period, period averages, and a gateable totalize with 7 digit accuracy. It is standard with two input channels (complete...

    Webster, MA

Overview

Frequency counters are electronic instruments used to measure the frequency of an incoming signal. They are essential in various fields, including telecommunications, electronics, and laboratory research, for accurately determining the frequency of signals in hertz (Hz). These devices are valuable for troubleshooting and ensuring the proper operation of RF systems, oscillators, and signal generators.

FAQ

What should I consider when buying a used frequency counter?

Consider the frequency range, accuracy, and resolution of the device. Check for any visible damage and ensure it powers on and functions correctly. Review any available calibration records.

How can I ensure the frequency counter is shipped safely?

Use a reputable shipping service with experience in handling delicate electronic instruments. Ensure the frequency counter is well-packaged with protective materials to prevent damage during transit.

What maintenance is required for a frequency counter?

Regular maintenance includes keeping the device clean and dust-free, checking connections, and verifying calibration periodically. Follow the manufacturer’s guidelines for specific maintenance procedures.