A RMS VOLTMETER. Product Status: Obsolete | View Service Options. This product is no longer available. Visit Technical Support. No replacement found. Path: /hp/a/. This is the BAMA archive. These manuals are available for download and free of charge. I am now accepting new manuals for inclusion in this. New -hp- A RMS Voltmeter has a 10 megohm input impedance, no zero set control, and a high crest factor with immunity to large overloads. Sensitivity is.
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It shows some wear as pictured. In-Stock Notification Request Sent Your request to be notified when this product is back in stock has been sent to our sales department.
Note the wire positions and colors and remove the wire plugs from the gold posts. However, as noted by Bp and Hill , h Johnson noise measurements, a small correction factor does the job. I have no direct experience with the earlier models. Skip to main content.
This could be done, perhaps by monitoring the DC output level of the chopper amplifier e. Unable to Process Offer Your offer was received but we are unable to process it for the following reason: Place the unit on its side during spraying, so the A2 board is on top and does not get sprayed. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. Correct Issue Close Wizard.
Jim’s absence will be a huge loss to the Analog design community. More measurements to follow some day.
Early and mid production models used the traditional numbering scheme A nnnnn. Here, I wanted the option to try a few different versions of this same part, so the socket. Additional Info Please let us know any information that will help us fill your requirement such as urgency, quantity needed, etc. We hope to earn your business. The first chopper stabilized circuits used a galvanic break of neon bulbs to cadmium sulphide cds np cells. Input impedance is 3400a Mohms.
US-Instrument Services. Agilent/HP A RMS Voltmeter
This item doesn’t belong on this page. But, then one would also need to confirm the stability of the input ACV amplitude as well as the thermocouple-heater pair. Symptoms included significant movement of the meter needle and low sensitivity. Standard accessories supplied by the original manufacturer No manuals or accessories required Other specify Will you accept an instrument with minor cosmetic and physical flaws if it operates properly?
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Best Selling in Voltmeters See all. Jim Williams passed away the same Sunday that I was writing my first notes on high crest factor up. Please enter your offer below for consideration. Requirements Our normal service includes 90 day warranty, all standard accessories and manuals, and restoration to “nearly new” condition.
Show More Show Less. Since then, we have been investigating low cost solutions for low level AC measurements. I do not know what serial numbers changed over from the nuvistor to the JFET input, or from the neon 3400 chopper to the intersil integrated chopper might be in the manual changes somewhere; I think the came out aroundnot sure. The A with the socket easily calibrated to spec. So, these ACV meters with wideband input amplifiers, are non-the-less relatively slow in response time, presumably one of the reasons beyond cost that this thermocouple technology is no longer used.
See details for description of any imperfections.
3400A RMS VOLTMETER
A “balancing” amplifier applies whatever DC voltage is needed to a second heating element attached to a second thermocouple to match the temperature of the first heating element. The HP A also offers a crest factor of The fear of sockets in uV circuits is in our opinion over-rated. A ground wire is soldered to the bottom of the board and does not need to be removed.
Equipment Offer Sent Your offer has been sent to our sales department for review. The lowest-priced item that has been used or worn previously. There might still be a place in the Lab for this Forgotten Meter. Cut new foam pieces from a high quality open soft packing foam typically a dark gray color.
See all 9 pre-owned listings. Unable to Process Request Your offer was received but we are unable to process it for the following reason: 3040a cord connector removed and replaced with a fixed power cord. Another approach might be yp do the test with two or more A and move the A6 board with the socket between the units in separate test runs over temperature.