[volt-nuts] AC calibration

[Poul-Henning Kamp]

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In message <trinity-9076c25b-a0a9-4b28-b29a-20f9e06039a3-1409072175101 at 3capp-gm
x-bs56>, acbern at gmx.de writes:

Tellurium/copper is used because it machines much better than pure
copper, (20% -> 90%) without ruining the conductivity too much.

Most other metals which can improve its machinability has big
negative impacts on the conductivity of copper.


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