HP 8405A Vector Voltmeter

$250.00 Buy It Now 1d 2h, $45.00 Shipping, eBay Money Back Guarantee

Seller: bobc2k (429) 100%, Location: Spring Valley, California, Ships to: US & many other countries, Item: 193373918108 This HP8405A was verified to work using an HP 8656B Signal Generator with a 100 millivolt test signal. I did not have an HP11570A Accessory kit available to make accurate measurements so I kludged some spring clips together to verify that this HP 8405A is in working condition. See the 3rd photo. I tested the 8405 from 1 MHz to 500MHz. The measured 8405 meter response was within +/- 5 per cent to 20MHz on both channels with less than a 3 degree phase error. The response was +/- 10 per cent to 50MHz on both channels with less than a 3 degree phase error. I measured up to 10 dB measurement errors and an 11 degree phase error for frequencies between 50MHz and 500MHz. My kludge test setup probably contributed to significant errors over the 20MHZ to 500MHz frequency range. The above tests were just performed to indicate that this 8405A is still operational. Also included is some test data I took on this 8405A about 10 years ago using an HP11570A Accessory kit and an HP 435A Power Meter set to the reference level. These old tests indicated .25dB to 100MHz and 1dB to 400MHz. Photo 4 thru 12 show some pictures of this Vector Voltmeter. Some of these pictures show the original test data attached to the top of the Vector Voltmeter. This Vector Voltmeter has a few minor scratches but generally appears very good for its age. This listing is ONLY for the HP 8405A Vector Voltmeter and does NOT include the signal generator, the test cables, the input power cable, or anything else used to test this Vector Voltmeter. This Vector Voltmeter is sold AS-IS as it is older electronic equipment. Payment must be made of a verified Pay Pal account and shipment must be made to the address of the same verified Pay Pal account in the lower 48 United States. Condition: Used, Brand: HP

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