LABORATORY INSTRUMENTS OF SPEED AND ACCURACY
8
-
I
4
i I'
I
SQUARE WAVE GENERATOR
.hp- hlodrl 2 IO Square- \T'ave Cvnvrittor provides
a new approach to the probleni of riieasuring the
characteristics of audio-frequency equipment. SECONDARY FREQUENCY
One or two ohservatrons with this generator will
check the frequency rcsponae of apparatus where STANDARD
heretoforr a large number of observations were .hp. ~~d~l I 00 L~~ I.~,.,,,~~.~,~\. jtandard provides
a convenient and t.xtreiIIeI\. uwful source of four UHF SIGNAL GENERATOR
~~~~~~~;~~~ W,~~;~fWw~~c[h~~~ ~~~~e:\~~~'; standard frequencies ( IO0 cps. I kc. IO kc. 100 kc) hp Model 616A Ullr Sicnal Generator is the
lo study by other methods. for accurate measurement purposes. for calibrat-
first Instrument dcvrloped commercially which
ing audio equipment and for various other work combines great operational speed. accuracy and
where great accuracy ia rrquired. It is useful in ease of operation with a frequency range of 1800
making accurate interpolation measurements at mc to 4000 mc. R-f power is generated by a re-
higher frequencies. flex klystron oscillator. and voltage adjustments
during operation are eliminated by special .h
automatic coupling device which cauqes oscif:
lator repeller voltage to track frequency changes.
7 he .hp- 616A features direct frequency and volt-
age control, c w. I-m or pulsed output, plus
I wide variety of input and output delay and syn-
chronization features.
I - -.-- !
ATTENUATORS AND VOLTAGE
DIVIDERS
ELECTRONIC FREQUENCY METER
-hp Model 350 is a bridged-T .ittenuator consist-
ing of one 100 db attenuator with IO db steps -hp. Model 500A Frequency Xleter is designed to
and a IO db attenuator having I db steps. Spe- measure the frequency of an alternating voltage
cial construction is used to assure high frequency from 5 cps to 50 kc. It can be used to measure
response. Inquiries pertaining to your particular difference between two h-f signals. It is particu-
attenuator or voltage divider problems will be larly suited to crystal grinding work where it can \
Riven careful attention. The Modcl 350A opcrates be used to measure the frequency deviation from
on a 500-ohm impedance level while the 3508 the standard, quickly and accurately.
operates at a 600-ohm impedancz level.
if P 6
w
POWER SUPPLY UNIT
-hp- Model 710A Power Supply is an excellent
source of d-c power for everv laboratory and pro-
duction department use. The power pack is de.
signed for the utmost in flexibility, compactness.
portability and economy. Output is continuously
variable between 180 and 360 volts. The output
voltage varies approximately I per cent with
chanzes in load current up to 75 ma and with
PRECISION OSCILLATORS normal line variations. Noise and hum level IS
WIDE - BAND OSCILLATOR -hp. Model 2018 and -hp Model 2001 are precision exceptionally low. and output unusually stable
over a long period of time. Also contains auxil-
-hp- Model 650A Resistance-tuned Oscillator is measurinc instruments of utmost accuracy and
the first instrument of its kind that not only latest design. The 2OlB spans a range from 20 iary center-tapped 6.3 volt source providing 5
covers a frequency range of IO cps to IO mc. cps to 20 kc in three bands; the 2001, a spread- amperes of a-c.
but brings to the r-f and video fields all the scale oscillator. covers frequencies from 6 to
speed, ease and accuracy traditional in -hp audio 6000 cps in six bands. Both include a 6" main
oscillators. This highly-stable, precision instru- frequency tuning dial calibrated over 300 de-
ment provides output flat within &I db from IO grces. controllsd directly or by 6- l micro-drive.
cps to IO mc. and a voltage range of ,00003 to Both meet all requireincnts for m-asurement
3 volts. Output impedance is 600 ohms. or 6 spred, accuracy, and purity of wave form. And
ohms with 100 to I output voltage divider. In- hoth instruments incorporate -hp family charac-
strument includes built-in vacuum tube voltmeter teristics of no zero set. constant output, and
and 50 db output attenuator. creat stability.
AUDIO SIGNAL GENERATOR
.hp. hlorlel 206A Audio Signal Generator provides
a highlv stable qource of continuously variable
a-f having a total distortion of less than 0 Ir%
between 50 cps and 20 kc. Output meter moni.
tors output voltage signal with accuracy of at
least 0.2 db. Precision attenuators vary oUf.pUl )
signal level in 0.1 db steps over I1 I db range.
H EWLETT-PACKARD COMPANY Flat frequency response and great accuracv of
output VOltnRe make this instrument ideal for
1320A PAGE MILL ROAD PAL0 ALTO, CALIFORNIA FM transmitter and station maintenance work. |
ACEC
