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DIY Precision Reference for DVM Calibration

Started May 3, 2020 | Discussions thread
Johannes Zander Regular Member • Posts: 467
Re: DIY Precision Reference for DVM Calibration

Hi Mike,

thanks for your nice comment.

I am not so scientific. I didn't do an long term drift test. I observed that it drifts between 9.9992 and 9.9995. This is precise enough for me.

I searched a bit about burn in for aging electronic devices and found this forum:

https://www.eevblog.com/forum/metrology/lm399-based-10-v-reference/250/

They talk about paralleling LM399 for reduced noice.

Good look with your research.

Regards

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