Good enough to check the accuracy of voltmeters used for servicing radios. The maximum error of the AD584K is 0.1% on the 10V output, only a little worse on the others. The accuracy comes from using the precise voltage measured and recorded on the calibration label as the true output voltage. In the past, on similar voltage standards, buyers have reporting receiving 2 or more units having identical labels.
John KK6IL
On 7/26/2025 10:53 PM, jahman via groups.io wrote:
Voltage Reference Standard, $15 - https://www.ebay.com/itm/134581471379
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