Tektronix 511A Instruction Manual page 5

TYPE 511- , 511- D
SWEEP SPEED MUL IPLIER MODIFICA ION
The dual 2 megohm potentiometer Sweep Speed
Mult, control formerly employed in the Type 511 - D
oscilloscope has been replaced with a combination con ­
sisting of a ten position step control and a separate
variable control. The step control resistance may be
varied from 0 to 1.8 megohms and the variable control
provides fill-in between steps, thus permitting continu ­
ously variable adjustment of sweep speed between
positions of the Sweep Range switch. Since 100 dial
divisions are provided for each 10:1 sweep speed range,
very accurate indication is obtained.
The sum of the Sweep Speed Mult, control readings
multiplied by the Sweep Range switch setting indicates
the sweep time in microseconds for a 10 centimeter
deflection.
SWEEP CIRCUI
TO S2 B
CHANGES
VI5