[time-nuts] Thunderbolt stability and ambient temperature

Poul-Henning Kamp phk at phk.freebsd.dk
Tue Jun 9 15:12:53 EDT 2009

In message <BLU125-W8D0E8A08CFBCDCC3E5D3ACE440 at phx.gbl>, Mark Sims writes:

>Placing the Tbolt in a corrugated cardboard box [...]

We have discussed this topic some time back, and I relayed a suggestion
from the Danish Metrology Lab:   Use an unplugged fridge.

Apart from a good air volume and sensible insulation, if you rip out
the compressor, you can use the cooling circuit to do active temperature
control if you want.

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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