Model 3300A Section VII
SECTION VII
REPLACEABLE PARTS
7-1. INTRODUCTION.
7-2. This section contains information for ordering
replacement parts. Table 7-1 lists parts in alphanumeric
order of their reference designators and indicates the
description, -hp- part number of each part, together with
any applicable notes, and provides the following:
a. Hewlett-Packard number.
b. Total quantities of each part used in the
instrument(TQ column).
c. Descriptions (abbreviations are listed below).
d. Table 7-2 is a part number-national stock
number cross reference index. The items on this
cross reference index are source coded PHAZZ.
Items that do not appear on this index are source
coded XD and shall be procured using the FSCM
and the MPN at the nearest wholesale level.
7-4. ORDERING INFORMATION.
7-5. To obtain replacement parts, address order or
inquiry to your local Hewlett-Packard Field Office. (See
field office location list). Identify parts by their Hewlett-
Packard part numbers. Include instrument model and
serial numbers.
7-6. NON-LISTED PARTS.
7-7. To obtain a part that is not listed, include:
a. Instrument model number.
b. Instrument serial number.
c. Description of the part.
d. Function and location of the part.
DESIGNATORS
A = assembly F = fuse MP = mechanical part TC = thermocouple
B = motor FL = filter P = plug V = vacuum tube, neon
BT = battery HR = heater Q = transistor bulb, photocell, etc.
C = capacitor IC = integrated circuit QCR = transistor-diode W = cable
CR = diode J = jack R = resistor X = socket
DL = delay line K = relay RT = thermistor XDS = lampholder
DS = lamp L = inductor S = switch XF = fuseholder
E = misc electronic part M = meter T = transformer Z = network
ABBREVIATIONS
Ag = silver ID = inside diameter ns = nanosecond (s) = 10
-9
sl = slide
Al = aluminum impg = impregnated seconds SPDT = single-pole double-
A = ampere (a) incd = incandescent nsr = not separately replace- throw
Au = gold ins = insulation (ed) able SPA.T = single-pole single-
throw
C = capacitor k
Ò
=kilohm (s) = 10
+3
ohms
Ò
= ohm (s) Ta = tantalum
cer = ceramic obd = order by description TC = temperature coefficient
coef = coefficient kHz = kilohertz = 10
+3
hertz OD = outside diameter TiO
2
= titanium dioxide
com = common
comp = composition L = inductor tog = toggle
conn = connection lin = linear taper p = peak tol = tolerance
dep = deposited log = logarithmic taper pc = printed circuit trim = trimmer
DPDT = double-pole double- pF = picofarad (s) = 10
-12
TSTR = transistor
throw m = milli =10
-3
farads
DPA.T = double-pole single- mA = milliampere (s) = 10
+3
piv = peak inverse voltage V = volt (s)
throw amperes p/o = part of vacw = alternating current
MHz = megahertz =10
+6
hertz pos = position (s) working voltage
elect = electrolytic M
Ò
= megohm (s) = 10
+6
ohms poly = polystyrene var = variable
encap = encapsulated met flm= metal film pot = potentiometer vdcw = direct current working
mfr =manufacturer p-p = peak-to-peak voltage
F = farad (s) mtg = mounting ppm = parts per million
FET = field effect transistor mV = millivolt (s) = 10
-3
volts prec = precision (temperature W = watt (s)
fxd = fixed
Î
micro = 10
-6
coefficient, long term w/ = with
GaAs = gallium arsenide
Î
V = microvolt (s) = 10
-6
volts stability, and/or tol- wlv = working inverse voltage
GHz = gigahertz = 10
+9
hertz my = Mylar® erance) w/o = without
ww = wirewound
gd = guard (ed) nA = nonoampere (s) = 10
-9
R = resistor * = optimum value selected
Ge = germanium amperes Rh = rhodium at factory, average
grd = ground (ed) NC = normally closed rms = root-mean-square value shown (part may
Ne = neon rot = rotary be omitted)
H = henry (ies) NO = normally open
Hg = mercury NPO = negative positive zero Se = selenium ** = no standard type num-
Hz = hertz (cycle (s) per (zero temperature co- sect = section (s) ber assigned (selected
second) efficient) Si = silicon or special type)
REV G ® Dupont de Nemours
7-1
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