[time-nuts] 5060A question...

Poul-Henning Kamp phk at phk.freebsd.dk
Wed Jan 2 03:47:58 EST 2008

In message <FBEDKEIEMDPKGDDCPGNCIEEHDLAA.wa1zms at att.net>, wa1zms at att.net writes

>Since I got it working several years ago, my HP-5060A
>has a rather loud ~2KHz audible whine coming from it.
>It seems to be a result of the switching power supply
>in the A20 oven controller module.

My units did the same thing, and I traced the sound to
one of the two high-voltage supplies and decided that
it was probably not worth the trouble...

Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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