Tektronix 3B5, Instruction Manual

Page: 170 / 187

VOLTAGE AND WAVEFORM
TEST CONDITIONS
Typical voltage measurements and waveform photographs
were obtained using the equipment listed and the following
operating conditions, unless noted otherwise on the indi ­
vidual diagrams:
Test Oscilloscope (with 10X Probe)
Frequency response
DC to 20 MHz
Deflection factor (with 0.5 volt to 50 volts/
probe)
division
Input impedance (with 10 Megohms, 7.5
probe)
picofarads
Probe ground
Type 3B5 chassis ground
Trigger Source External from pin BH of
the Time-Base board to
indicate true time re­
lationship between sig­
nals
Recommended type (as Type 543B with Type 1A2
used for waveforms on
diagrams)
Voltmeter
plug-in unit
Type AC (RMS)— DC volt-ohm
meter
Sensitivity 20,000 ohms/volt
Range
0 to 500 volts
Reference voltage Type 3B5 chassis ground
Recommended type (as
used for voltages on
diagrams)
Simpson Type 262
Type 3B5 Conditions
Line Voltage
115 volts
Signal applied None
Connectors
No connections
Trace position
Centered
Control settings As follows except as noted
otherwise on individual
diagrams:
Mode
MAN
POSITION
Midrange
DLY'D SWP MAG
OFF
DELAY 1.00
MANUAL
TIME/DIV
1 ms
VARIABLE
CAL
Trigger Function
INT-AUTO
LEVEL
Midrange
SLOPE
+
All voltages given on the diagrams are in volts. Waveforms
shown are actual waveform photographs taken with a Tek ­
tronix Oscilloscope Camera System and Projected Graticule.
Voltages and waveforms on the diagrams (shown in blue) are
not absolute and may vary between instruments because of
differing component tolerances, internal calibration or front­
panel control settings. Any apparent differences between
voltage levels measured with the voltmeter and those shown
on the waveforms are due to circuit loading of the voltmeter.