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Krohn-Hite 3940

Krohn-Hite 3940 opt 002 Low-Pass / High-Pass / Bandpass / Band Reject Butterworth / Bessel Dual Channel Filter. 0.3 Hz to 200 kHz 3940A-20
  • Krohn-Hite 3940 for sale
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  • Krohn-Hite 3940 for sale
  • Krohn-Hite 3940 for sale

Datasheets

$1395.00 Sorry, Out of Stock

Model: Krohn-Hite 3940     Condition: Reconditioned

Note  option 002 lowers the frequency cutoff range to 0.3 Hz to 200 kHz

DESCRIPTION

The Krohn-Hite Model 3940 programmable, dual channel, Butterworth/Bessel filter offers a programmable or benchtop filter covering a cutoff frequency range from 3Hz to 2MHz. It has a frequency response characteristic of maximally flat (Butterworth) for clean filtering in the frequency domain, or linear phase (Bessel) to provide pulse signal filtering. The passband gain is unity, and the attenuation slope is 24dB/octave per channel. The 3940 will accept input signals of ±4.5V peak and provides input and output gains of 0dB or 20dB which can be selected via the front panel keyboard or over the GPIB bus.

CONFIGURATIONS

The filter can be programmed to operate in low-pass, high-pass,   band-pass or band-reject modes, or the two channels can be interconnected to achieve 48dB/octave high-pass or low-pass slopes.

STORING SET-UPS

The Model 3940 offers to the user 99 groups of non-volatile memory for storage of front panel set-ups, which are stored in battery-backed CMOS. Set-ups can then be recalled with a simple command. The 3940 also provides a self-test diagnostics upon power-up  of its internal memory to insure the unit is operating properly. If a failure occurs, the display will indicate which ROM or RAM has failed.

APPLICATIONS

Applications for the Model 3940 are anti-aliasing, random noise testing, sound measurements, sound recording, suppressing interference in audio communications circuits and many more.

Operation Manual (QR Link)
Power Cord

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Offer

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Krohn-Hite 3940

$ .00

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Requirements

Our normal service includes 90 day warranty, all standard accessories and manuals, and restoration to "nearly new" condition. Discounts may be offered for reduced service levels. Please let us know which of these you would be willing to consider for the price discount.

Reduced Warranty Period:
Do you require manuals and accessories for the instrument?
Will you accept an instrument with minor cosmetic and physical flaws if it operates properly?

Are you willing to prepay your order by check or wire transfer to avoid credit card fees?

Additional Info


Equipment Offer Sent

Your offer has been sent to our sales department for review. You should expect a response within one business day or less.

Thank you for allowing us the opportunity to assist with your test equipment needs. We hope to earn your business.

Error Sending Request

We are very sorry but an error on the server is preventing your request from being processed.

Please contact us via email or toll free at (800) 673-4102 and we will be happy to assist you with this request.

We would also greatly appreciate it if you could provide us with this error code: 999

Unable to Process Offer

Your offer was received but we are unable to process it for the following reason:
???

Please correct the issue indicated and resubmit or contact us via email or toll free at (800) 673-4102 and we will be happy to assist you with this request.