570: Difference between revisions

165 bytes added ,  13 September 2011
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The Tektronix 570 is a curve tracer for tubes.  It sweeps the plate voltage between zero and a selectable maximum voltage
The Tektronix 570 is a curve tracer for tubes.  It sweeps the plate voltage between zero and a selectable maximum voltage
while "stepping" the control grid through a set of voltages.   
while "stepping" the control grid through a set of voltages.   
A selectable screen voltage is available for testing tubes with screens.
A selectable screen voltage is available for testing tubes with screens. The plate voltage is measured and applied
to the X-axis of the display.  The plate current is measured and amplified and
is applied to the Y-axis of the display.