Tektronix 11A32 User's Reference Manual page 49

Deflection factor
The ratio of input signal to response in the 11000 system. The reciprocal of
sensitivity.
Display on/off button
The front-panel, plug-in button that designates a channel for display, or removes
a channel from the display.
Mainframe
Any 11000-series oscilloscope exclusive of plug-in units.
Offset
A control that allows the user to subtract a precision voltage from the input
signal to vary the position of the displayed signal.
ON/STANDBY
The front-panel power control on 11000-series mainframes. When set to ON,
applies operating power to all circuits. When set to STANDBY, the mainframe
DC power supply supplies power to the counter-timer crystal oven (Option IT).
Overdrive
A condition in which amplifiers are driven into a non-linear operating range.
Typically many divisions off screen.
Overload
The condition existing when a potentially damaging voltage is applied to the
input connector.
Toggle
To switch alternately between two functions (e.g., on and off).
11A32 User Reference Supplement
A-l