Peter
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β1
ββtop: clean up, replaced: manuals= β designers= |manuals=
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Kurt
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+1
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Soren
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Created page with "The Ball Efratom PTB-100 is a precision frequency reference. It provides 10MHz sine and TTL output, and 1MHZ TTL output. <gallery> File:Ball efratom ptb-100.JPG </gallery>"
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