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Moving the toggle switch to the DUAL TRACE position should produce two traces about two major divisions apart. | Moving the toggle switch to the DUAL TRACE position should produce two traces about two major divisions apart. | ||
Note that some of the photos on this page show a TU-4 with BNC connectors instead of UHF connectors. That was a change that was scheduled to start at SN 300, but production ended before this upgrade could be implemented. The UHF connectors, but not the binding post, were scheduled | Note that some of the photos on this page show a TU-4 with BNC connectors instead of UHF connectors. That was a change that was scheduled to start at SN 300, but production ended before this upgrade could be implemented. The UHF connectors, but not the binding post, were scheduled to be changed. | ||
One of the small black knobs on this unit is also incorrect; all three small knobs should be the same. | |||
While the BNC connectors are a welcome improvement, the TU-4 with BNCs shown on this page must have been upgraded after it was sold. | |||
==Pictures== | ==Pictures== |
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