Ph 122 stars%/usr1/manuals/ph122/scope/scope.doc

This line indicates the “graph” line corresponding to zero volts. d) Use the POSITION knob on the differential amplifier to adjust the zero-volt line to one of the lines near the bottom of the screen. Now put the GND button back in the out position. ... The function generator is a sort of variable power supply which provides a voltage which ... ................
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