SECTION VI
REPLACEABLE PARTS
6-1
INTRODUCTION
6-2 This section contains information for ordering re-
placement parts. Table 6-4 lists parts in alpha-numeric
order by reference designators and provides the following
information:
a. Reference Designators. Refer to Table 6-1.
b. Description. Refer to Table 6-2 for abreviations.
c. Total Quantity (TQ). Given only the first time
the part number is listed except in instruments containing
many sub-modular assemblies, in which case the TQ appears
the first time the part number is listed in each assembly.
d. Manufacturer's Part Number or Type.
e. Manufacturer's Federal Supply Code Number.
Refer to Table 6-3 for manufacturer's name and address.
f. Hewlett-Packard Part Number.
g. Recommended Spare Parts Quantity (RS) for
complete maintenance of one instrument during one year of
isolated service.
h. Parts not identified by a reference designator are
listed at the end of Table 6-4 under Mechanical and /or
Miscellaneous. The former consists of parts belonging to and
grouped by individual assemblies; the latter consists of all
parts not immediately associated with an assembly.
6-3
ORDERING INFORMATION
6-4 To order a replacement part, address order or in-
quiry to your local Hewlett-Packard sales office (see lists
at rear of this manual for addresses). Specify the
following information for each part: Model, complete serial
number, and any Option or special modification (J)
numbers of the instrument; Hewlett-Packard part number;
circuit reference designator; and description. To order a
part not listed in Table 6-4, give a complete description of
the part, its function, and its location.
Table 6-1. Reference Designators (Continued)
Table 6-2. Description Abbreviations
6-1
Table 6-1. Reference Designators
A = assembly E = miscellaneous
B = blower (fan) electronic part
C = capacitor F = fuse
CB = circuit breaker J = jack, jumper
CR = diode K = relay
DS = device, signaling L = inductor
(lamp) M = meter
P = plug V = vacuum tube,
Q = transistor neon bulb,
R = resistor photocell, etc.
S = switch VR = zener diode
T = transformer X = socket.
TB = terminal block Z = integrated cir-
TS = thermal switch cuit or network
A = ampere mod. = modular or
Ac = alternating current modified
assy. = assembly mtg = mounting
bd = board n = nano = 10
-9
bkt = bracket NC = normally closed
°C = degree Centigrade NO = normally open
cd = card NP = nickel-plated
coef = coefficient Ω = ohm
comp = composition obd = order by
CRT = cathode-ray tube description
CT = center-tapped OD = outside diameter
dc = direct current p = pico=10
12
DPDT = double pole, P.C. = printed circuit
double throw pot. = potentiometer
DPST = double pole, p-p = peak-to-peak
single throw ppm = parts per million
elect = electrolytic pvr = peak reverse
encap = encapsulated voltage
F = farad rect = rectifier
°F = degree Farenheit rms = root mean square
fxd = fixed Si = silicon
Ge = germanium SPDT = single pole,
H = Henry double throw
Hz = Hertz SPST = single pole,
IC = integrated circuit single throw
ID = inside diameter SS = small signal
incnd = incandescent T = slow-blow
k = kilo = 10
3
tan. = tantalum
m = milli = 10
-3
Ti = titanium
M= mega = 10
6
V= volt
µ= micro = 10
-6
var = variable
met. = metal ww = wirewound
mfr = manufacturer W = Watt
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