DURALAB EQUIPMENT CORP

NEW YORK36. For further Information, circle number 77-1 on Readers' Service Card, page 89 A. DURALAB. LABORATORY FURNITURE ANO EQUIPMENT...
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RACINE

watt of radiation. The unit, a photoconductor detector type, interprets changes in the intensity of radiation reaching its photoconductor in terms of changes in the amount of electric cur­ rent flowing through the photoconduc­ tor. The photoconductor in the new de­ tector is of germanium, which is made sensitive to infrared by adding gold as an impurity. An added advantage of this detector over other varieties is said to be its response to the longer wave­ lengths in the infrared, up to ten mi­ crons. The company says that it can detect small fluctuations in the tem­ perature of an object even below body temperature, due to its speed and sensi­ tivity. P-47

Since 1890...

Specializes in t h e L a r g e s t S e l e c t i o n s of

TIMERS

Timers and Chronographs

GALLET £ QUINAND

Supply Firms

Potentiometric

Recorder

If u n o b t a i n a b l e

Faster square cornering recorder re­ sponse with a unique tolerance for widely varying input resistance is now featured in E. H. Sargent & Co.'s multirange precision potentiometric recorder, S-72510.

Write

for

locally,

Latest

CATALOG For All Research Laboratory and Technical Uses

JULES RACINE &COMPANY,INC. ujmimui.ijii.^i..iJiHBHi.iJTi.i. 20 WEST 47th STREET. NEW YORK 3 6

For further Information, circle number 77-1 on Readers' Service Card, page 89 A

DURALAB LABORATORY FURNITURE AND EQUIPMENT MANUFACTURERS & DESIGNERS OF Standard full scale balancing speed is now one second. At this speed, square cornering response without sig­ nificant overshoot is produced with in­ put impedances between 0 and 10,000 ohms when using the 1.25 millivolt range (5 microvolt/millimeter). Eleven true potentiometric ranges in the 0.1% order of accuracy can be selected on a panel switch of 1.25 mv. to 2500 mv. full scale. An additional volt series using a megohm divider is provided for use to 500 volts. P-48

"LABS m ΛMCr>T11 T THAT ' "

LAST

Specialists in the design and manufacture of laboratory furniture and equipment, Duralab's Standard, Sectional and Custom Built units are: Fireproof, Waterproof, Corrosion Resistant

A Complete Line e f Superior Quality •

TABLES

·

CABINETS



CASES

·

FUME H O O D S



R A D I O C H E M . LAB. EQUIP.

FUME H O O D model D A I R C O L (illustrated) has been developed for the A i r Conditioned Labora­ tory. Write for full Specifications.

• For Catalog D2 Illustrating our complete line of Laboratory Furniture end Equipment, write today

• A copy of our complete Fume Hood Catalog D H 3 is yours on request. Write today.

Weighing Apparatus A new semi-automatic, dial-controlled apparatus for weighing objects up to 50 kg. with sensitivity of 10 mg. has been developed for the Atomic Energy Commission by Voland & Sons. The mechanism handles weights cali-

D U R A L A B EQUIPMENT CORP.,

978 LINWOOD STREET BROOKLYN 8, Ν. Υ .

For further information, circle number 77-2 on Readers' Service Card, page 89 A

VOL.

3 1 , N O . 1 , JANUARY

1959



7 7A