123: Difference between revisions

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|designers=
|designers=
|manuals=
|manuals=
* ''please add [[Category:Manual needed]]
* [[Media:Tek 123 instruction sheet.pdf|Tektronix 123 Instruction Sheet]]
}}
}}
The '''Tektronix 123''' is a miniature preamplifier [[introduced in 1955]].   
The '''Tektronix 123''' is a miniature preamplifier [[introduced in 1955]].