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The intended use of the 123 is as a preamplifier for other instrumentation such as an oscilloscope, and the oscilloscope's input coupling can simply be set to "AC". | The intended use of the 123 is as a preamplifier for other instrumentation such as an oscilloscope, and the oscilloscope's input coupling can simply be set to "AC". | ||
==Pictures==<gallery> | ==Pictures== | ||
<gallery> | |||
Tek 123 1958 cat.jpg|Description in 1958 Catalog | Tek 123 1958 cat.jpg|Description in 1958 Catalog | ||
Tek 123 front.png|Front panel | Tek 123 front.png|Front panel |