[time-nuts] Inside a CTS 1960017 OCXO
Hal Murray
hmurray at megapathdsl.net
Sat Feb 27 22:32:07 UTC 2016
rob at nc0b.com said:
> I cannot say exactly, as I measured it as 59 Hz. VA7OJ measured it as 60
> Hz. I was using an HP lab supply, and Adam was using some other lab supply.
> I put a 500 uF capacitor across the Vcc pin and it had no effect. I don't
> think it has anything to do with the power supply since both of us saw the
> same thing. ...
How much line noise is floating around the lab? What does the spectrum
analyzer see if you power off the DUT?
--
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