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661: Difference between revisions
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title=Tektronix 661 | | title=Tektronix 661 | | ||
summary=Sampling scope | | summary=Sampling scope | | ||
image= | image=661_5T1A_4S1_front.JPG | | ||
caption=Tektronix 661 | | caption=Tektronix 661 | | ||
introduced=1961 | | introduced=1961 | | ||