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Krohn-hite 7500 amplifier
The 7500 Wideband Power Amplifier is a direct-coupled wideband amplifier that offers extended output power and voltage capabilities, low distortion, an advanced, and all solid state design. It provides more than 75 watts of continuous power (150 watts at DC), and 125 volts RMS from DC to 100kHz. Frequency response is typically flat to within 0.05dB over most of its range. In addition, the unit typically contributes only 0.05% of total harmonic distortion, at full power output, up to 10kHz. The voltage gain of the unit is non-inverting, and can be selected for either 20dB(10) or 40dB(100) of fixed gain, or continuously adjustable from zero to 40dB. The unit also provides either direct (DC) or capacitive (AC) input coupling.
* Frequency Range: DC to 1MHz
* Frequency Response: Less than ±0.1 dB
* Distortion: Less than 0.1%
* Maximum Voltage: 140 Volts RMS, Open Circuit
Older unit. Power LED is burned out, Checked output on a Digital Multimeter to 200 VDC.
No other testing has been done.
Box Size: 25x25x13" - Oversize 1
Checks/Money Orders must be payable to: Hart Industries of America, Inc.
Almost all units will be packed using foam-in-place with antistatic foil. For heavier pieces we will use double walled boxes (350 lbs test) to insure the safe delivery of your equipment. This packing will be invoiced at cost and is ranging from $ 2.50 for a hand held multi meter to $ 25.00 for larger items. Should the packing exceed $ 25.00 it will be indicated in the listing.
The removal or damage to calibration or warranty seals, will void any warranty or return privileges.
- Not tested due to lack of accessories, manuals or knowledge
- Man hours for testing would exceed expected sales price
- Unit has known defects or parts missing as described in the listing
The listing will indicate what tests have been done, any known defects or parts missing. We do not attempt to conceal defects.
If a calibration is not included, it still may be available and will be invoiced at cost plus $ 20.00 (for dropping off and picking up). Our calibration prices should be competitive, since we have a blanket contract with the calibration lab.
While we do our utmost to provide an unbiased accurate description about the condition of the unit, your assessment of the condition or appearance may be different. Therefore, if a unit does not meet your expectations, you will have 3 business days to request a Return Material Authorization (RMA). Do not wait weeks to determine, that the piece of equipment is not to your liking, does not go with the other decor in your place or simply you do not like, how the unit is looking at you. It is 3 working days! If you would like a rental for a week or so, let us know and we can provide you with an attractive quote.
All items will be exported in accordance with the U.S. Export Administration Regulations. Diversion contrary to U.S. law is prohibited.
We are in the office from 9:00 AM to 5:00 PM Eastern Standard Time from Monday to Friday. If you send us an e-mail over the weekend, you may not an answer until the following Monday.
You may pick-up your item from our warehouse located in the Burr Industrial Park (off Route 9) at:
Please call first to make sure we are not on the road that day.
If you are not satisfied, please tell us, so that we may correct the problem.
Still have questions? Call us at (***) 728-5001 or drop us a line ****@hart-usa.com
