Ball Efratom

Efratom , a division of Ball Corp., based in Irvine, CA, produced rubidium frequency standards and related instruments. Efratom was acquired by Datum, Inc. in 1994 [1].

Efratom made plugins for frequency measurement that were compatible with the TM500 system.

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Products by Ball Efratom

Model Class Series Description Introduced Discontinued
Ball Efratom PTB-100 Plug-in TM500 system Rubidium frequency reference (?) (?)