Specification—475
line frequency of 48 to 440 hertz. Maximum power
consumption is 100 watts at 115 VAC , 60 hertz.
C A TH O D E-R A Y TUBE
Graticule Area
Eight by ten centimeters.
Phosphor
P31 is the standard phosphor with P11 offered as an
option.
E N V IR O N M E N T A L
Temperature
Operating: —15°C to +55°C; Storage: — 5 5 °C to +75°C.
Altitude
Operating:
to
15,000
feet.
Maximum
operating
temperature decreased 1°C /1,000 feet above 5,000 feet.
Storage: to 50,000 feet.
Humidity (Operating and Storage)
5 cycles (120 hours) referenced to M IL-E-16400F.
Vibration
15 minutes along each of three major axes at a total
displacement of 0 .0 2 5 " peak to peak (4 g's at 55 hertz)
with frequency varied from 10 hertz to 55 hertz to 10 hertz
in one minute sweeps. After sweep vibration in each axis,
hold the frequency steady at each major resonance for 3
minutes, or if no such resonances are found, hold at 55
hertz for 3 minutes.
Shock (Operating and Nonoperating)
30 g's 1/2 sine, 11 milliseconds duration, 2 shocks per
axis each direction for a total of 12 shocks.
Transportation
Tested to National Safe Transit Committee Procedure
1 A, with a 30-inch drop.
SUPPLEMENTAL IN F O R M A T IO N
The supplemental information listed here represents limits that, when met, ensure optimum instrument operation. They
are, however, not instrument specifications but are intended to be used only as maintenance or operational aids.
V E R T IC A L D EFLEC TIO N SYSTEM
Common-Mode Rejection Ratio
Low-Frequency Linearity
There should
be no more than 0.1
division of
compression or expansion of a two-division signal (at center
screen) positioned to the upper and lower extremes of the
graticule area.
Bandwidth Limiter Bandwidth
The — 3 dB point should be between 15 and 25
megahertz.
Step Response Aberrations
There should be less than +4%, -4 % , or a total of 4%
peak to peak aberration on a positive-going step in the
5 m V /D IV position of the V O L T S /D IV switch. Add 3%
when checking a negative-going step or when checking for
aberrations while operating in the added mode.
A t least 20:1 at 1 kilohertz for common-mode signals of
8 divisions or less.
Trace Shift As Variable Is Rotated
Adjustable to 2 divisions or less.
IN V E R T Trace Shift
One division or less when switching from normal to
inverted.
Input Gate Current
1 nanoampere or less (0.2 division at 5 mV/division)
from +20°C to +30°C . Four nanoamperes or less (0.8
division at 5 mV/division) from —1 5 °C to +55°C.
Channel Isolation
A t least 100:1 at 50 megahertz.
1-4
®
Summary of Contents for 475
Page 6: ...475 475 Oscilloscope ...
Page 20: ......
Page 46: ......
Page 151: ...A B C D E F G Fig 7 4 P 0 A4 Vertical Mode Switch circuit board ...
Page 152: ...n m m m 1 t siumm c ii im ...
Page 154: ...Diagrams 475 A B C D E F G ...
Page 155: ...GRID LOCATOR Fig 7 8 P O A3 Vertical Preamp circuit board ...
Page 157: ...Diagrams 475 ...
Page 158: ...GRID LOCATOR 2 3 4 5 6 7 8 9 1 10 11 1 12 Fig 7 10 P 0 A3 Vertical Preamp circuit board ...
Page 160: ...Diagrams 475 GRID LOCATOR Fig 7 11 A5 Vertical Output circuit board ...
Page 163: ...Diagrams 475 GRID LOCATOR Fig 7 12 P O A8 Trigger Generator And Sweep Logic circuit board ...
Page 167: ... 415 OSCILLOSCOPE B T R IG G E R G E N E R A T O R g B TR IG G E R GEN ER A TO R ...
Page 168: ...Diagrams 475 GRID LOCATOR ...
Page 172: ...SWEEP G E N ER A TO R S ...
Page 175: ...TIM IN G HORIZONTAL DISPLAY SWITCHING ...
Page 177: ...A 011 HORIZONTAL AMPLIFIER 8 l j k J Ll J Ol Z o N C O X U 1 C L O o v O o _J V v P O in r ...
Page 179: ... 476 OSCILLOSCOPE ...
Page 180: ...POWER SUPPLY ...
Page 182: ...CRT CIRCUIT ...
Page 185: ...C A L IB R A T O R A N D F A N C I R C U I T 4 C A LIB R A TO R FAN MOTOR C IR C U IT ...
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Page 190: ...4 T 475 OSCILLOSCOPE FIG 1 FRO NT PANEL ...
Page 191: ...475 OSCILLOSCOPE FIG 2 MAIN FRAME ...
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Page 200: ...FIG 3 RIGHT SIDE l 475 OSCILLOSCOPE ...
Page 201: ...V S X O t l B O T T OVJ 8 8 ...
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Page 210: ...5 ...
Page 211: ...4 4 75 O S C ILLO S C O P E FIG 5 CAB IN ET ...
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Page 241: ... 1 I R I II9A po S IT I o n f i n e I R l 130 PAGE 4 OF 5 R 1234 Ml 9 91 9 473 ...