Replaceable Parts; Introduction; Ordering Information; Non-Listed Parts - HP 428B Operating And Service Manual

Model 428B

6-1. INTRODUCTION.

6-2. This section contains information for ordering
replacement parts. Table 6-1 lists parts in alphabetic
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. The TQ column lists the total quantity of any
part listed in the manual. The total quantity of
a part is given the first time the part number
appears.
b. Description of the part. (See list of
abbreviations below.)
c. Typical manufacturer of the part in a
five-digit code. (See Appendix B for list of
manufacturers.)
d. Manufacturer's part number
Ag
AI
A
Au
C
cer
coef
com
comp
conn
dep
DPDT double-pole double-throw MΩ
DPST double-pole single-throw metflm
elect
encap
F
FET field effect transistor mV
fxd
GaAs gallium arsenide µs
GHz Gigahertz=10
gd
Ge
grd
H
Hg
Hz hertz (cyc1e(s) per second) NPO
A
B
BT
C
CR
DL
DS
E misc. electronic part
F
23

REPLACEABLE PARTS

silver ID
aluminum impg
ampere(s) incd
gold Ins
capacitor kΩ kilohm(s) 10
ceramic kHz kilohertz= 10
coefficient L
common lin
composition log
connection mA milliampere(s) = 10
deposited MHz megahertz = 10
megohm(s) = 10
electrolytic mfr
encapsulated ms
farad(s) mtg
millivolt(s)= 10
fixed µF
+9
hertz µV microvolt(s) = 10
guard(ed) my
germanium nA nanoampere(s) = 10
ground(ed) NC
henry(ies) Ne
mercury NO
negative positive zero sect
(zero temperature coefficient) Si
DECIMAL MULTIPLIERS
Prefix Symbols Multiplier
tera T
giga G
mega M or Meg 10
kilo K or k
hecto h
deca da
deci d
assembly FL
motor HR
battery IC integrated circuit
capacitor J
diode K
delay line L
lamp M
MP mechanical part
fuse P
SECTION VI
6-3. Miscellaneous parts are listed at the end of
Table 6-1.

6-4. ORDERING INFORMATION.

6-5.
order or inquiry to your local Hewlett-Packard Field
Office. (See Appendix C for list of office locations.)
Identify parts by their Hewlett-Packard part
numbers. Include instrument model and serial
numbers.

6-6. NON-LISTED PARTS.

6-7. 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.
ABBREVIATIONS
inside diameter ns nanosecond(s) = 10
impregnated nsr not separately replaceable SPST
.incandescent Ω
.insulation(ed) obd order by description Te
+3
ohms OD
+3
hertz P
inductor pA
linear taper pc
logarithmic taper pF
-3
amperes
+6
hertz piv peak inverse voltage vacw
+6
ohms p/o
metalfilm pos
manufacturer poly
millisecond pot
mounting p-p
-3
volts ppm
microfarad(s) prec precision (temperature coefficient,
microsecond(s) long term stability, and/or
-6
volts
Mylar® R
-9
amps Rh
normally closed rms
neon rot
normally open Se
sl
Prefix Symbols Multiplier
+12
10 centi c
+9
10 milli m
+6
micro µ
+3
10 nano n
+2
10 Pico p
10 femto f
-1
10 atto a
DESIGNATORS
filter Q transistor
heater OCR transistor- diode
R resistor
jack RT thermistor
relay S switch
inductor T transformer
meter TB terminal board
TC thermocouple
plug TP test point
To obtain replacement parts, address
-9
seconds SPDT single-pole double-throw
single-pole single- throw
ohm(s) Ta
temperature coefficient
outside diameter Ti02
peak tog
picoampere(s) tol
printed circuit trim
-12
picofarad(s) 10 TSTR
farads V
alternating current
part of
position(s) var
polystyrene vdcw DC working voltage
potiometer W
peak-to-peak wi
parts per million wiv working inverse voltage
w/o
ww
tolerance) * optimum value selected at
resistor factory, avg value shown
rhodium (part may be omitted)
root-Olean-square ** no standard type number
rotary assigned (selected or
selenium
section(s)
Silicon
slide
-2
10
-3
10
-6
10
-9
10
-12
10
-15
10
-18
10
TS terminal strip
V vacuum tube, neon bulb,
photocell, etc.
W cable
X socket
XDS lamp holder
XF fuse holder
Y crystal
Z network
tantalum
titanium dioxide
toggle
tolerance
trimmer
transistor
volt(s)
working voltage
variable
watt(s)
with
without
wirewound
special type