Tektronix 475A - Differential Time Measurement (Dm44); Horizontal; X-Y; Calibrator

Accuracy for Measurements Less than One Major Dial
Division: Within 40.01 major dial divisions from +15°C to
+35°C. Within +0.02 major dial divisions from —15°C to
+55".
DIFFERENTIAL TIME
MEASUREMENT (DM44)
Refer to TIME AND 1/TIME under DM44 DIGITAL
MULTIMETER.
HORIZONTAL
Sweep Rate Accuracy: Within 2%, unmagnified, and 3%
magnified, from +20°C to +30°C for A and B Sweeps.
Mixed Sweep Accuracy: Within 2% plus the measured A
Sweep inaccuracy, when viewing the A portion only. B
Sweep portion remains the same as above.
Trigger Holdoff Variable: increases A Sweep holdoff
time by at least a factor of 10.
Delay Time Jitter: 1 part, or less, in 50,000 (0.002%) of
10 times the A TIME/DIV switch setting.
64 475A/DM44 Operators
Calibrated Delav Time (VAR control to CAL):
Continuous from 0.2 us to at least 5 seconds. ter the start
of A (delaying) sweep. 8
X-Y
X-Axis Sensitivity (X10 MAG turned off): Same as the
vertical system.
X-Axis Bandwidth: Dc to at least 4 MHz, with a
10 division reference signal.
Phase Difference Between X- and Y-Axis Ampiifi
Within 3° from dc to 50 kHz.
Deflection Accuracy: Within 4%.
CALIBRATOR
Output Voltage: 0.3 V within 1% and within i
+20°C to +30°C,
Output Current: 30 mA within 2% from +i
+30° C.
Repetition Rate: About I kHz.