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The TU-2 is a plug-in for testing 500-series scopes. | The TU-2 is a plug-in for testing 500-series scopes. | ||
It is called for in the document | |||
"[http://w140.com/tek_balancing_545_vert.pdf Balancing the 540-Series Vertical Amplifier]". | "[http://w140.com/tek_balancing_545_vert.pdf Balancing the 540-Series Vertical Amplifier]". | ||