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Three easy ways to find the information you need

1. Check headings on opposite page for
I broad categories of instrumentation.

~ 2. Use complete numerical index begin-
ning on page 396 to locate specific
equipment by model number (ex-
NEELY ample-3400A RMS Voltmeter).
3. Use alphabetical index on pages
3 9 1 - 3 9 5 to locate equipment by
name, title or type (example-
digital voltmeter).

t 482-1463 JI

Other important information bi-monthly newsletter from your hp field office) are mailed
This catalog provides detailed information on instru- regularly to anyone interested in keeping abreast of the
ments available from Hewlett-Packard, including products latest developments in electronic test and measurement in-
of the Boonton, Dymec, Harrison, Moseley and Sanborn strumentation. See pages 3-12 for more details.
Detailed listings of general-purpose equipment grouped Keeping up-to-date on Hewlett-Packard products
by functional categories begin on page 2 5 . In addition,
you will find abbreviated information on pages 15 through New Hewlett-Packard products, introduced after publi-
cation of this catalog, are described in the h p Journal and
2 4 describing certain special-purpose equipment manufac-
tured by the various Hewlett-Packard divisions. in Measurement News, advertised in the major trade pub-
lications, exhibited in major trade shows and demonstrated
by hp field engineers. Data sheets on these new products
Placing your order will be sent promptly on request.
Page 2 contains time-saving suggestions for ordering.
How to communicate with Hewlett-Packard
Other information on Hewlett-Packard products Hewlett-Packard products are manufactured in more
In addition to data in this catalog, information about than a dozen factories throughout the world. The Hewlett-
application and operation of hp equipment is available in Packard field sales office in your are$ is equipped to handle
hp data sheets, Application Notes, the Hewlett-Packard all your needs for information on any hp product, and f o r -
Journal and Measurement News. Data sheets and Applica- parts or service on the h p products you are already using.
tion Notes are available on request. Both the Hewlett- A complete listing of Hewlett-Packard field offices is just
Packard Journal (a monthly publication of the hp research inside the back cover of this catalog. If there is no field
and development laboratories) and Measurement News (a office in your area, please contact:

United States Canada and Latin America Europe Elsewhere
Hewlett-hckrd HWIett-hCkrd Hewlett-Paokard SA. International Marketing
1501 Page Mill Road Inter-Americas Department
Palo Alto, California 94304 1501 Page Mill Road 54 RouteSwitzerland
Geneva, des Acacias Hewlett-Packard
Telephone: (415) 326-7000 Palo Alto, California, U.S.A. Telephone: (022) 42.81.50 1501 Page Mill Road
TWX: 910-373-1267 Telephone: (415) 326-7000 Telex: 2.24.86 Palo Alto, California, U S A .
Telex: 033 811 TWX: 910-373-1267 Cable: HEWPACKSA Telephone: (415) 326-7000
Telex: 033 811 TWX: 910-373-1267
Cable: HMPACK Telex: 033 811

All data i n this catalog subject t o change without notice. Prices f.0.b. factory in United States.

Hewlett-Packard Catalog No. 25, 4-65 Printed i n U.S.A.
Instruments in this catalog are grouped by type or function, Most major groupings are
preceded by technical information pages which summarize the measuring techniques in-
volved and provide helpful information for selecting instruments best suited for specific jobs.


Major instrument groups are listed below. Complete model number a n d descriptive in-
dexes are at the end of the catalog as indicated by the t h u m b index positions.
About Hewlett-Packard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . la
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........... . 2
Parts and Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Cabinets, Mounting Arrangements . . . ... ....................... . 13
Miscellaneous Products including medical and scientific instruments, transducers,
temperature measuring system, semiconductor products . . . . . . . . . . . . . . . . . . . . . 15
Amplifiers . . . . . . . . . . . . . ............................................. 25
Wave and Distortion Analyz ................................... . . . . . 36
Counters including electronic counters for measuring frequency, time interval,
ratio, period; preset counters; scintillation counting systems;
digital recorders; scanners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Data Acquisition Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . 80
Frequency and Time Standards including frequency synthesizers, quartz oscillators,
clocks, power supplies and vlf receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Impedance Bridges and Meters including Q and rx meters, phase meters,
impedance-measuring accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Meters, Analog for measuring voltage, current, resistance . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Meters, Digital and Differential including dc standards, ac-to-dc converters,
voltage- to-frequency converters . . . . . . . . . ......................... , 141
MicrowaveTest Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
' Equipment tables by frequency band ........................... . 163
Signal sources . . . . . . . . . . . . . . . . . . . . . . . . . .................... . 175
Spectrum analyzers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , 214
Power measurement equipment . . . . . . . . . . . . . . ..... 218
Noise figure measurement equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Microwave impedance measurement equipment . . . . . . . . . . . . . . . . . . . . . . , 230
Oscillators and Audio Signal Generators , , . , . , , ........ ....... 247
Oscilloscopes . . . . . . . . . . . . . . ................................................ . 26s
Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
Pulse, Square Wave, Digital Delay Generators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333
Recorders including x-y, continuous thermal-writing and optical, tape,
single- and multi-channel systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 . . . . . . . . . . . . .. 341
Descriptive Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 391
Numerical Index . . . . . ...................... . . . . . . . 396
Field Offices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4OOb


Since its founding in Palo Alto, California, in 1939,
Hewlett-Packard has grown from a two-man operation into
a world-wide organization of more than 7000 people, with
an annual sales volume exceeding $125 million,
The company and its affiliates now have more than a
dozen manufacturing plants, including two in Western
Europe and one in Japan. Sales and service offices are lo-
cated in nearly every major city in the free world.
Although Hewlett-Packard's growth has been dynamic
and far-reaching, the company has never altered its original
objective - to make significant contributions to the special-
ized field of electronic instrumentation, T o this end, it has
concentrated its energies and resources on developing in-
struments which provide the greatest possible usefulness,
accuracy, convenience, dependability and dollar value.
Among the principle categories of Hewlett-Packard in-
strumentation are oscillators, voltmeters, oscilloscopes, pulse
generators, graphic recorders, data acquisition systems,
waveguide test equipment, signal generators, electronic
counters, frequency and time standards, impedance measur-
ing instruments, power supplies, solid-state components,
medical diagnostic equipment and instruments for chemical
and nuclear measurement.
The market for the company's instruments covers a
broad spectrum of science, business and industry. From
electronic development laboratories to radio and T V
studios, from chemical research facilities to aircraft plants,
from banks to medical laboratories, from steel mills to
space vehicle installations - Hewlett-Packard equipment is
found in a wide variety of applications.
Now in its second quarter century of growth and prog-
ress, Hewlett-Packard intends to continue providing instru-
ments which represent the utmost in fine craftsmanship -
a standard of quality unmatched in the electronic test equip-
ment field.

Hewlett-Packard Divisions and Affiliates
To provide the full advantage of specialized engineering
and manufacturing know-how for each product, Hewlett-
Packard operates through product-oriented divisions, each
responsible for one or more types of instrumentation. The
general manager of each division administers all aspects of
engineering, manufacturing and marketing for a given
product group.
Hewlett-Packard sales divisions, each responsible for lo-
cal service in a defined geographic territory, are listed at
the end of this catalog.
Two Hewlett-Packard divisions are at 1501 Page Mill
Road in Palo Alto, California. Products of the Frequency
atzd Time Division include electronic counters and precise
frequency and time standards. The Microwuve Division
produces signal generators, waveguide and other special-
ized test equipment for use at microwave frequencies.

The Loveland (Colorado) Division manufactures volt-
meters, oscillators, distortion analyzers and other general-
purpose test equipment.
The Color.ado S p m g s (Colorado) Division makes os-
cilloscopes, pulse generators and allied products.
Dymec Division, 395 Page Mill Road, Palo Alto, Cali-
fornia, produces instruments and systems for acquiring and
processing digital data, as well as specialized test equip-
ment for other uses, Dymec was established in 1956 and
acquired by h p in 1959.
Boonton Division, Green Pond Road, Rockaway, New
Jersey, was founded in 1935 and acquired by hp in 1959.
Products include impedance-measuring equipment, and
special-purpose signal generators and test sets.
HP Associates, 620 Page Mill Road, Palo Alto, Cali-
fornia was formed by hp in 1961 to conduct solid-state re-
search and development and to market advanced semi-con-
ductor components.
H a r r i s o n Division, 1 0 0 Locust Avenue, Berkeley
Heights, New Jersey, was founded in 1954 and acquired
by hp in 1961. Harrison Division produces highly regu-
lated dc power supplies and related items,
Moseley Division, founded in 1951 as the F. L. Mose-
ley Co., became affiliated with hp in 1958, and a division
in 1964. Moseley Autograf X-Y Recorders and a broad
line of laboratory and industrial strip-chart recorders are
widely used throughout the world. Moseley Division is at
433 North Fair Oaks Avenue in Pasadena, California.
Sanborn Division, 175 Wyman Street, Waltham, Mas-
sachusetts, has been affiliated with Hewlett-Packard since
1961. Sanborn's medical group is a leading source of medi-
cal diagnostic apparatus; the industrial group produces a
broad line of instruments and systems for measuring and
recording physical phenomena.
Mechrolab, an hp affiliate since 1964, produces a pro-
thrombin (blood-clot) timer, as well as a number of os-
mometers and other specialized instruments for measuring
molecular weights of complex polymer chemicals, Mech-
rolab is located at 1062 Linda Vista Avenue, Mountain
View, California.
Hewlett-Packard Inter-Americas, headquartered in Palo
Alto, provides sales and service to Canada (through Hew-
lett-Packard (Canada) Ltd.), and to all of Latin America.
Hewlett-Packard S.A., in Geneva, Switzerland, is re-
sponsible for all h p activities in Western Europe. Factories
in Bedford, England, and in Boeblingen, Germany, manu-
facture many of the individual instruments sold in Europe.
Sales companies in each major country assure European
customers of the same high level of applications assistance
and service as in the United States.

Order by model number
When you order, please specify the catalog model num- ing orders is available, without charge, from field engineers
ber and name of instrument desired. For example, "Model at Hewlett-Packard sales offices in the United States and in
400D Vacuum Tube Voltmeter." T o prevent misunder- principal areas throughout the world (see inside back cover
standing, include significant specifications and specific in- for names and addresses).
structions in your order whenever you desire special op-
tions or features such as special color, non-standard power Shipping methods
line voltage, etc. Shipments to destinations within the United States and
Many Hewlett-Packard instruments are supplied in cabi- Western Europe are made directly from local factories or
nets along with easily attached hardware for direct mount- warehouses. Unless specifically requested otherwise, express
ing in 19" equipment racks. Other Hewlett-Packard in- or truck transportation is used, whichever is cheaper and
struments are available in cabinets for bench use or with most serviceable to you. Small items are sent via parcel
19" panels for rack mounting. For example, "400DR." post, If rapid delivery is needed, we will gladly ship by
Catalog listings indicate availability of cabinet or rack the more expensive methods of air freight, air express or
mounting arrangements. Please be sure your order indicates air parcel post when specified on your order. In many parts
which you desire. of the United States a consolidated air freight service pro-
vides the speed of air transport at surface rates. Ask your
Price and delivery information field engineer for details.
Prices in effect at date of publication are listed in this
catalog. All prices and other data are subject to change Terms
without notice. Prices are f.0.b. factory. Contact your near- U.S. terms are 30 days net. Unless credit has already
est field sales office to confirm prices and to obtain current been established, shipments will be made C.O.D., or on
delivery information. receipt of cash in advance. See additional information be-
Where to send your order low if you are located outside the United States,
Your order should be made out to the Hewlett-Packard
Company and sent to the Hewlett-Packard field office in Quotations
Upon request, quotations will be furnished to you by
your area (see inside of back cover). Each field office has
special communication channels to the Hewlett-Packard your local Hewlett-Packard sales office or the Hewlett-
Packard Company. Prices will be specified on an f.0.b. fac-
factories to assure prompt and efficient handling of your
tory basis unless otherwise requested. See additional infor-
order. See additional information below if you are located
mation below if you are not in the United States.
outside the United States.
Local technical assistance Repairs and repair parts
Technical assistance in selecting equipment and prepar- See pages 3 through 12.

Additional information for customers outside the United States
Where to send your order
In many countries, your order can be placed directly on your local Hewlett-Packard distribu-
tor or representative (see inside back cover), Alternatively, your order can be made out to Hew-
lett-Packard Company, (Hewlett-Packard S. A. if you are in Western Europe or Hewlett-Packard
Inter-Americas if you are in Latin America) and sent to the appropriate Hewlett-Packard office,
either directly or through your local hp authorized sales office.
If no Hewlett-Packard representative or distributor has, as yet, been appointed for your area,
your order should be placed directly on the offices listed above.
Shipping methods
Shipments to customers outside the United States or Western Europe are made from the ap-
propriate Hewlett-Packard facility by either surface or air, as requested. Sea shipments generally
require commercial export packaging at a nominal extra charge.
Terms for orders from countries outside the United States which are placed on the Hewlett-
Packard Company, Hewlett-Packard S. A., or Hewlett-Packard Inter-Americas are irrevocable let-
ter of credit or cash in advance, unless other terms have been arranged previously. Terms for
orders placed on authorized Hewlett-Packard distributors are mutually determined between the
customer and the distributor.
Quotations and pro forma invoices
FAS, CIF, C & F, etc., quotations or pro forma invoices, as well as exportation and importa-
tion assistance, are available on request from your local authorized Hewlett-Packard sales office,
Hewlett-Packard, Palo Alto, California; Hewlett-Packard S. A,, Geneva, Switzerland, or Hewlett-
Packard Inter-Americas, Palo Alto, California.

With electronic instrumentation, as with other products, must have a service organization which can respond quickly
the user expects service with his purchases, and he expects and completely to the customer's needs.
the manufacturer to stand behind its products after the Over the years, Hewlett-Packard has built such an organ-
sale, Satisfying this expectation is one of the manufacturer's ization. When the buyer of Hewlett-Packard equipment needs
primary responsibilities, and it is a responsibility which repair service, replacement parts or technical assistance, h e
Hewlett-Packard long has recognized, need not correspond with a factory that may be several thou-
sand miles away. More than 75 field offices located through-
Even more than with consumer products, electronic meas- out the free world provide local service for the instruments
uring instrumentation demauds this service. Purchase of manufactured by the Hewlett-Packard companies.
equipment to check out a multi-million-dollar missile before Many of the services offered by these hp field offices are
launch or for monitoring critical physiological reactions of discussed on the following pages, You will read about the
a patient during surgery m i s t carry with it an assurance of depth of service you can expect from hp. Then check inside
accuracy and reliability. Not only must the manufacturer the back cover of this catalog to locate the Hewlett-Packard
build quality and reliability into his product, but he also field office nearest you.

... " " , _ .

In addition t o the usual (and some not so usual) after-the-sale services, your Hewlett-Packard Field Office
also offers many services you may find helpful before you decide which piece of equipment to purchase.

Demonstration instruments
For many purposes, a data sheet giving complete technical
specifications is all you require. There are, however, occasions
when you like to have an instrument put through its paces -
have a chance to see for yourself. Your hp field engineer
will be happy to arrange a demonstration of Hewlett-Packard
instruments for you. Also ask your field engineer when an
hp demonstration van will be in your area. These vans offer
you a chance to see and evaluate instruments from all of the
Hewlett-Packard divisions in working displays.

With such a broad product base, hp is capable of modify-
ing standard instruments to meet a wide variety of special
applications. Divisionalization of the product groups per-
mits a flexibility in our manufacturing methods, and provides
potentials unequaled in the industry. If you have a unique
application and cannot find a standard instrument to do the
job, check with your hp field engineer. He is always ready
to work with you in any way possible.

Staff engineers
When you pick up your telephone, the quickest, most
efficient source of technical assistance and application in-
formation is your hp field office staff engineer. To ensure
that there is always someone available who talks your lan-
guage, your staff engineer spends all of his time in the office,
ready to answer your call. He is the in-office counterpart of
your field engineer and directly assists him in giving you
the finest possible service. If you have an application ques-
tion or if you need technical information on hp products,
just give him a call,

When purchasing test equipment, ease of maintenance is Factory seminars
always a consideration. Many purchasers, of course, have Factory seminars offer broader coverage of groups of
repair and calibration facilities and prefer to maintain their instruments and are held at the Hewlett-Packard factory.
h p equipment at their plant. By taking advantage of Hewlett- Older instruments, as well as the newer models, are covered
Packard's product training program, you can have factory and, where possible, a portion of the training is tailored to
trained technicians in ~ Z L service department,
individual needs. Repair and calibration techniques are dis-
Two types of training are offered for your supervisory cussed during the one- or two-week seminar.
and key electronic maintenance personnel - field service
seminars and factory seminars. Seminar schedule and cost
Field service seminars Due to the program's popularity and the limited number
Generally held at the local field office, field service semi- of trainees that can be accommodated at any one time, there
nars cover a given product area such as oscilloscopes, signal is often a waiting list. Your hp field office will be glad to
generators, voltmeters, etc., and last for one or two days. provide you with a schedule of upcoming seminars and
These seminars are usually conducted by engineers from make the necessary reservations.
the Hewlett-Packard product training group who are thor- Both the field seminars and the factory seminars are of-
oughly trained in the instruments to be covered and experi- fered at no charge to you. Your only cost is for transporta-
enced in instructional techniques. tion, lodging and meals.

Field service seminars offer your
service technicians the opportunity
to receive maintenance training
from factory engineers.

More intensive coverage
of a group of instruments is
available through
the factory seminars.

Hewlett-Packard willingly incurs the obligation to keep
you informed of new measurement techniques, applications,
new instruments, maintenance and service procedures. To
do this, your hp field office offers a number of publications,
each designed for a specific purpose.
If you are interested in receiving any of the following
publications, simply contact the field office nearest you.

Operating and Service Manuals -----
"* ,
- -

Operating and Service Manuals provide operating instruc-
tions, theory of operation, maintenance and calibration in-
formation, schematics and a table of replaceable parts. Al-
though they are supplied with each new hp instrument, you
may wish to purchase extra copies or replace your original
copy if it has been misplaced. Manuals for current instru-
ments are always available, and copies for many older in-
struments are quite often still in print.
When ordering a replacement manual (usually $2.50
to $ l o ) , please give the instrument model number and com-
plete serial number,


I bench briefs

Bench Briefs
This newsletter briefly reviews new hp service informa-
tion as it becomes available. Typical subjects include new
modifications, service short cuts and parts information. Dis-
tributed by mail, Bench Briefs is sent to individuals directly
concerned with repair and maintenance of hp instruments.

Hewlett-Packard Journal
A monthly technical publication from the h p laboratories,
the Journal brings you new measuring techniques and de-
scribes advances in the state-of-the-art for measuring instru-
ments. To receive your copy of the Journal each month, just
ask that your name be added to the Journal mailing list,

Service Notes
This series of technical publications is available for dis-
tribution to customers' facilities where hp instruments are
repaired and maintained. Service Note topics include new
or special calibration techniques, modifications and special
repair procedures - all written in a detailed manner. Ask
your hp field engineer for a copy of the Service Note Index.

Application Publications
As the name implies, Application Publications deal pri-
marily with uses of hp equipment. Because of their special-
ized nature, these Publications are distributed by individual
request only rather than on a mailing list. Ask for the com-
plete Application Publications Index so you may order those
which are of interest to you.

Measurement News
Announcements of new instruments and Application
Publications as they become available, as well as articles of
local interest, are brought to you by your h p field office in
this bi-monthly publication.


Replacement parts play a key role in Hewlett-Packard's
service-in-depth program. Prompt instrument maintenance,
whether it's done in your shop or by one of the hp field
offices, depends on the immediate availability of the neces-
sary replacement parts, For this reason, extensive parts in-
ventories are maintained throughout the field. Over 90%
of the orders for hp replacement parts are shipped the same
day they are received, To back up these inventories, Hewlett-
Packard has developed a fast drop-ship procedure from
regional centers to assure you of immediate response to
your replacement parts needs.

AC ess ries and operatin supplies
In addition to the usual individual replacement parts,
accessories and operating supplies are also in stock ready
for' immediate delivery for the instruments manufactured
by the Hewlett-Packard companies.

Modification kits
Like replacement parts, modification kits may be ordered
by h p stock number from your nearby field office. Two publi-
cations from hp customer service, Service Notes and Bench
Briefs (see preceding pages), keep you abreast of modifica-
tions which are available.
A complete inventory of replacement parts, ac-
cessories a n d o p e r a ti n g supplies is m a i n t ained
a t yo u r local h p field office.

Spare parts kits
Several types of parts kits are available to assure continuous
operation from your h p instruments when they are being
used in an isolated area, or where loss of the instrument
use would be extremely critical. "Running Spares" and "Iso-
lated Service" kits offer varying degrees of completeness,
and you can pick the kit that most nearly satisfies your
These i t e m s m a k e u p a n "Isolated Service
Kit" for t h e Model 4106 V a c u u m Tube Volt-

Ordering replacement parts
When ordering replacement parts or operating supplies,
please specify the following information to assure your
getting the right part in the shortest possible time.
1. hp stock number for the part
2. a complete description of the part
This information is listed in the "Table of Replaceable
Parts" in the Operating and Service Manual you received
with your instrument.
If for some reason the hp stock number is unknown, please
include the instrument model number und serial number, a
complete description of the part, its function and its location
within the instrument,

Proper parts id e n t if ic a t io n means faster de.
livery t o you. Ca!l y o u r h p field o f f ic e when.
ever you need assistance.


The Hewlett-Packard field office is not just a point of
contact, a mere passer of messages, The service departments
located at more than 40 of the field offices have fully
equipped, factory-trained repair and maintenance groups
prepared to offer you immediate assistance on your Hewlett-
Packard instruments.

Instrument recalibration
T o insure continued reliability, the proper operation of
any electronic instrument should be routinely verified from
time to time. The Operating and Service Manual for each
h p instrument provides the information required for field
recalibration. If it is not convenient for you to recalibrate
your hp instrument, contact your nearest hp field office.

Standards calibration and traceability to NBS
Special "standards calibration" services also are available.
These services are in addition to the precision recalibration
services mentioned above, and include a calibration report
on each equipment item calibrated. The report contains (1) a
description of measurement conditions, ( 2 ) the measure-
ments made and accuracy, and ( 3 ) demonstration of trace-
ability to the National Bureau of Standards (where appli-
Repair and maintenance
When your hp instrument is not functioning properly,
you usually need service fast. Whether it is routine mainte-
nance or emergency repair, the field service department is
staffed and equipped to do the job quickly.
M a n y times, maintenance i n fo r m a ti o n c a n be
handled easily over t h e phone.

Instrument overhaul
Older h p instruments that have been in operation for a
number of years can be brought up to meet the specifications
of the current production instruments of the same model.
If your particular model is no longer being manufactured,
overhaul will put it in a condition equivalent to when it
was originally purchased.

The characteristics of your standard hp instrument can
occasionally be modified to satisfy special requirements, or
an older instrument that has been in the field for some time
can be up-dated by one of many modifications available
through the field service department. Most modifications
can be easily performed in your plant by your technicians
(see Modification Kits, page 8).

Other instrument services available
Hewlett-Packard instrument services, of course, go beyond
the usual repair and calibration. Service contracts are avail-
able through your hp field office, and systems installation is
provided when needed.

Returning your instrument for service
When returning an hp instrument to your hp field office
for service, following the three suggestions listed will help
get it back to you in the shortest possible time:
1. Send complete instructions telling what you would
like done to the instrument (repair, overhaul, certify
- with NBS traceability, etc.) .
2. If the instrument needs to be repaired, include com-
plete information about the "symptoms."
3. Indicate the address to which the instrument is to
be returned, plus the addresses to use for corre-
spondence and billing purposes.

Factory-trained senior technicians offer fast, de.
pendable service for in- o r o u t - o f - wa r r a n t y repairs.

Publications, replacement parts, training, staff engineers, Manufacturing divisions
instrument maintenance and calibration, demonstrations, An important member of each manufacturing division's
"specials"-all offered by your hp field office. This would marketing group is the service engineer. It is his function
not be possible, of course, without some solid back-up. to see that new instruments developed by his division have
Hewlett-Packard's service organization backs up the field service considerations built in, to keep abreast of the latest
office with regional service centers, and it backs up the re- modifications available and repair techniques used and to
gional service centers with service engineers in the manufac see that this information is passed to the regional service
turing divisions. centers and the field offices. A specialist in his particular
Regional service centers group of instruments, he also provides additional technical
Regional service centers are now located in Rockaway, Nevi Warranty
Jersey, and Palo Alto, California, with more expected in The Hewlett-Packard warranty not only guarantees you
the near future. In addition to the usual repair and replace- an instrument which will perform to published specifica-
ment parts back-up, the regional service centers maintain tions, but also expresses our pride and confidence in the
highly specialized equipment not available at all local serv- materials and workmanship which have gone into that in-
ice departments for repairs and calibration. These centers strument. It is a warranty backed by over 2 5 years of ex-
also stock the seldom-called-for replacement parts for older perience in the electronics industry and an organization
hp instruments, In this way, you are guaranteed the same designed to serve you.
fast service for all your replacement parts, "All Hewlett-Packard products are warranted against de-
Staffed by people with many years of factory and field fects in materials and workmanship. This warranty applies
office experience, the regional service centers provide tech- for one year from date of delivery, or in the case of certain
nical back-up, as well. A complete microfilm library is main- major components listed in the operating manual, for the
tained at each service center for the instruments produced specified period. W e will repair or replace products which
by the hp divisions, with parts lists, production changes prove to be defective during the warranty period. No other
(and the serial numbers involved), modifications and serv- warranty is expressed or implied. W e are not liable for con-
ice techniques included, sequential damages."

Service engineers, a r m e d w i t h a c o m p le te m i c r o f i l m Service begins as t h e i n str u m e n ts are b e i n g d e
l i br a r y o n Hewlett-Packard products, provide neces- veloped i n t h e lab.
sary technical back-up.

Versatile instrument packaging

T h e Hewlett-Packard modular enclosure system provides
a complete solution to instrument packaging and mounting
problems. T h e system is in accord with EIA standard rack
and panel dimensions, yet each enclosure is equally well
suited to bench or field use.
T h e matching enclosures offer an enviable combination
of economy, strength and appearance. They are rugged
enough to meet many of the stringent military require-
ments and present a rich, professional appearance which
enhances the value of the instrument.
Figure 1. Ful l rack wid t h cabinets stack one a t o p t h e other.

Two types of instruments
Basically, instruments enclosed in the modular system fall
into two classes:

1. Those units which require the full EIA rack width.
This class of instruments mounts directly in racks
with the two brackets and filler-strip included with
the instrument. Extension slides are available for use
in rack mounting these instruments to provide com-
plete accessibility for quick, convenient servicing. Feet
and tilt stand also are provided with full-module in-
Figure 2 . Standard configurations include cabinets o n e - th i r d
struments for bench use, and the instruments can be
and o n e h a l f full rack wid t h . Accessory handle 11057A i s stacked conveniently for maximum utilization of avail-
shown on half.width in s t r u m e n t .
able space. For semi-permanent stacking, joining
brackets are available which effectively combine two
instruments into a single physical unit. Control panel
covers are also available for these instruments to pro-
tect them when they are transported.
2. Those units which d o not need the full rack width,
These instruments are standardized at one-half or
one-third the width of the full module. Because of
their size, they are easily portable and can be used
readily in the field, as well as on the bench. Acces-
sory handles 11056A (one-third module) and 11057A
(one-half module) are attached easily to these instru-
ments for added handling convenience. In addition,
adapter frames are available to mount these units in
Figure 3. Hewlett-Packard 1051A Co m b in in g Case. the standard EIA racks. T h e h p 1 0 5 1 A , 1052.4 Com-
bining Cases also can be used for a multi-instrument
package that is both portable and easily rack mounted
with the hardware provided. Both combining cases
and rack adapter frames use blank panels to fill areas
not used by instruments and accept one-third width
drawers for convenient storage of leads, probes, etc.
Model 1052A Combining Cases also accept cooling
kits to maintain proper ambient temperature.

Characteristic of both classes of modular instruments is
Figure 4. H ere one hp instrument, one Harrison Division
i ns trument and t w o Dyrnec Division in s t r u m e n t s are m o u n te d ease of maintenance. T o p and bottom covers, as well as
i n an h p rac k adapter f r a m e . side panels, are removable to provide access to all adjust-
ments and test points within the instruments,

Figure 5. Instrument covers qulckly convert full.width cab.
inets to easily carried portable units.

Control panel covers Figure 6. Extension slides permit easy access to rack mounted
EIA panel height instruments.
Part Number (in.) (mm) Price
5060-0826 3-15/32 88 $22.50
5060-0827 5-7/32 133 $25.00
506n-nx?x* 6-31/37 177 $27.50
I 5060-0829 I 8-23/32 I 222 I $28.50 I
5060-0830 10-15/32 266 $30.00
5060-0831 12-7/32 310 $32.50
* Also f i t s hp 1051A and 1052A

Extension slides (see Figure 6)
0403-0050 Slides, closed length 16-7/32" (412 mm),
maximum travel 20%`' (527 m m ) , $50.
0403-0051 Slides, closed length 22-7/32" (564 mm),
maximum travel 26%" (680 mm), $55.
0403-0052 Adapters and Brackets for full-module instru-
ments over 3y2" high (89 mm), $20, Figure 7. Combining case accessories.

0403-0054 Adapters and Brackets for full-module instru-
ments 3Y2'' high ( 8 9 mm), $15.
Joining brackets (see Figure 8)
5060-021 5 Joining Bracket Kit for semi-permanently
joining any two full-module instruments 1 y " (286
1 4
mm) deep behind the front panel, $20.
5060-0216 Joining Bracket Kit for semi-permanently join-
ing any two full-module instruments 163/" (416 mm)
deep behind the front panel, $20.
Accessory handles (see Figure 2 ) Figure 8. Joining brackets effectively weld instruments into
a single physical unit.
llO56A Handle for any one-third module instrument, $ 5 .
11057A Handle for any one-half module instrument, $ 5 .

N e w instruments are constantly emerging from the expansion automates intrinsic viscosity measurements for the first time
of technology in Hewlett-Packard's growing family of affiliates and increases precision of measurement by a factor of 10. The
and divisions. These are not only for traditional electronic ap- 801 provides automatic influxing and timing, four channels for
plications, but increasingly are contributions toward better in- sequential operation and digital display of efflux times. Most
strumentation for science and industry at large. Representative types of capillary U-tube viscometers can be used with the
of hp developments beyond those purely electronic are the Model 801. An extremely precise constant temperature bath,
chemical instruments described here. For further details on Model 805, holds temperature uniform within *O.OOS"C. It is
these and other such products, contact your Hewlett-Packard included with the 801 Auto-Viscometer, but also may be ordered
field engineer. separately for use in other applications. Prices: Mechrolab 801
Auto-Viscometer, on request; Mechrolab 805 Constant Temper-
Measure molecular weights rapidly, precisely, ature Bath, on request.
100 t o 5,000,000
Merhrolab 300 Series V a p o r Pressare Osmometers. Number 8400A Microwave Spectrometer
average molecular weights between 100 and 20,000 are precisely Identify molecular .rpecies, determine compounds in mixtures
determined in 20 minutes or less with 300 Series Vapor Pres- quantitatively. The hp Model 8400A Microwave Spectrometer,
sure Osmometers. Operating on the principle of vapor pressure by measuring absorption frequencies in X-band, will yield
lowering of solvent by solute, these instruments automatically molecular structure information such as the determination of
provide 2-minute readings at progressively changing osmotic bond angles, internuclear bond distances, dipole moments of
concentrations. Excellent results can be obtained using micro- molecules and intra-molecular effects such as nuclear quadru-
liter volumes of sample. Thermostats and probes are available pole interactions and hindered rotations. From application of
for operation a t 25, 37, 50 and 65