<< Tektronix 465B Oscilloscope

Tektronix 465B
100 MHz Dual Trace Oscilloscope Specifications

Bandwidth* and Rise Time (at all deflection factors from 50 Ω  terminated source) -15°C to 40°C +40°C to +55°C
Dc to 100 MHz, 3.5 ns 85 MHz, 4.1 ns
*Measured at -3 dB. Bandwidth may be limited to approx. 20 MHz by bandwidth limit switch.
Cascaded bandwidth is at least 50 MHz when signal out is terminated in 50 Ω.
Lower -3 dB point, ac coupling 1X probe: 10 Hz or less. 10X probe: 1 Hz or less.
Deflection Factor at BW 5 mV/div
1-2-5 sequence, accurate ± 3%. Uncalibrated, continuously variable between steps and to at least 12.5 V/div. LED warning light indicates uncalibrated setting. In cascade mode sensitivity is approx. 1 mV/div.
Display Modes Ch 1, Ch 2 ADD (normal and inverted), alternate, chopped - approx. 500 kHz rate, in any combination electronically switched.
CMRR Common-mode rejection ration at least 20 dB at 20 MHz for common-mode signals of 6 div or less
Automatic Scale Factor Probe tip deflection factors for 1X or 10X coded probes are indicated by two readout lights behind knob skirts.  LEDs are off when channel not displayed.  Ground reference display selectable at probe (when dc coupled).
Input R and C 1 MΩ  ± 2% paralleled by approx. 20 pF
Max Input Voltage Dc coupled 250 V (dc + peak ac)
500 V (p-p ac at 1 kHz or less)
Ac coupled 250 V (dc + peak ac)
500 V (p-p at 1 kHz or less)
Delay Line Permits viewing leading edge of displayed waveform
Time Base A 0.02 µs/div to 0.5 s/div (1-2-5 sequence). 10X mag extends max sweep rate to 2 ns/div. LED indicates 10X mag.
Time Base B 0.02 µs/div to 50 ms/div (1-2-5 sequence).  10X mag extends max sweep rate to 2 ns/div.  LED indicates 10X mag.
Variable Time Control Time Base A provides continuously variable uncalibrated sweep rates between steps and to at least 1.25 s/div. LED warning light indicates uncalibrated setting.
Time Base A and B Accuracy, full 10 cm   +20°C to +30°C -15°C to +55°C
Unmagnified ± 2% ± 3%
Magnified ± 3% ± 4%
Horizontal Display Modes A, A intensified, B delayed. B ends A for increased intensity in the delayed mode.  Electronic switching between intensified and delayed sweep.  A sweep and B sweep may be viewed simultaneously.
Delay Time Range 0.2 to 10X delay time/div settings of 20 ns to 0.5 s.
Differential Time Measurement Accuracy Delay Time Setting +15°C to +35°C
over one or more major dial divisions ± 1%
less than one major dial division ± 0.01 major dial divisions
Jitter 1 part or less in 50,000 (0.002%) of 10X the A sweep time/div setting. 1 part in 20,000 when operating from 50 Hz line.
A Trigger Modes Normal (sweep runs when triggered) automatic (sweep runs in the absence of a triggering signal and for signals below 30 Hz). Single Sweep (sweep runs one time on the first triggering event after the rest selector is pressed). LED lights indicate when sweep is triggered and when single sweep is ready.
A Trigger Holdoff Adjustable control permits a stable presentation of repetitive complex waveforms.
B Trigger Modes B runs after delay time (starts automatically at the end of the delay time) and B triggerable after delay time (runs when triggered).  The B (delayed) sweep runs once, in each of these modes, following the A sweep delay time.
Time Base A and B Trigger Sensitivity and Coupling
Coupling to 25 MHz At 100 MHz
Internal 0.3 div deflection 1.5 div deflection
External divided by 10
50 mV

500 mV
150 mV

1.5 V
Ac Requirements increase below 60 Hz
Ac Lf Reject Requirements increase below 50 kHz
Ac Hf Reject Requirements increase below 60 Hz and above 50 kHz
Jitter 0.5 ns or less at 100 MHz and 2 ns/div.
A Trigger View Electronically switched trigger view displays the external signal used for A sweep triggering.  This provides quick verification of the signal and time comparison between a vertical signal and the trigger signal which can be displayed simultaneously.  The deflection factor is approx. 100 mV/div (1 V/div with external divided by 10).
Level and Slope Internal, permits selection of triggering at any point on the positive or negative slope of the displayed waveform.  Level adjustment through at least ± 2 V in external, through at least ± 20 V in external divided by 10.
A Sources Norm, Ch 1, Ch 2, line, external, and external divided by 10.
B Sources Starts after delay, norm, Ch 1, Ch 2, and external.
External Inputs R and C approx. 1 MΩ  paralleled by approx. 20 pF. 250 V (dc + peak ac) max input.
Full-Sensitivity X-Y (Ch 1 Horiz, Ch 2 Vert) 5 mV/div to 5 V/div, accurate ± 4%. Bandwidth is dc to at least 4 MHz.  Phase difference between amplifiers is 3° or less from dc to 50 kHz.
Crt 8 X 10 cm display. Horizontal and vertical centerlines further marked in 0.2 cm increments.  P31 phosphor standard; P11 optional. 18 kV accelerating potential.
Graticule Internal, nonparallax; variable edge lighting; markings for measurement of rise time.
Beam Finder Compresses trace to within graticule area for ease in locating an offscreen signal.  A preset intensity level provides a constant brightness.
Z-Axis Input Dc coupled, positive-going signal decreases intensity; 5 V p-p signal causes noticeable modulation at normal intensity; dc to 50 MHz.
Ambient Temperature Operating: -15°C to +55°C
Nonoperating: -55°C to +75°C. Filtered forced air ventilation is provided.
Altitude Operating: to 15,000ft; max allowable ambient temperature decreased by 1°C/1000 ft from 5000 to 15,000 ft. 
Nonoperating: to 50,000 ft.
Vibration Operating: 15 minutes along each of the three axes, 0.06 cm (0.025 in) p-p displacement (4 g's at 55 Hz) 10-55 - 10 Hz in 1 minute cycles.
Humidity Operating and nonoperating: 5 cycles (120 hours) to 95% relative humidity as specified in MIL-T-28800B (par
Shock Operating and nonoperating: 30 g's 1/2 sine, 11 ms duration, 3 shocks per axis in each direction for a total of 18 shocks.
Amplitude Calibrator Output Voltage 0.3 V 1%
0°C to +40°C
Output Current 30 mA 2%
+20°C to +30°C
Frequency Approx 1 kHz  
Vertical Signal Output Ch 1 vertical signal is dc to at least 50 MHz (-3 dB), and approx 25 mV/div terminated into 1 MΩ.
Gate Outputs Positive gates from both time bases (approx 5 V).
Power Requirements Quick-change line voltage selector provides six ranges; 110 V, 115 V, 120 V, 220 V, 230 V, and 240 V, each ± 10%. 48 to 440 Hz, 85 watts max at 115 V and 60 Hz. Operation from 12 or 24 V dc is available with Option 07.
Dimensions Cabinet Rackmount
  in cm in cm
Height 6.2 15.7 7.0 17.7
Width (with handle) 12.9 32.8 19.0 48.3
Depth (with panel cover) 18.1 46.0 18.0 45.7
Depth (handle extended) 20.3 51.6    
Weights (approx.) lb kg lb kg
Net (without panel cover) 22.8 10.3 29.4 13.3
Net (with panel cover and accessories) 25.3       
Shipping 37.0 16.7 58.0 26.3

Used Equipment Catalog