32 A
ANALYTICAL
CHEMISTRY
WHY
SHOP
FOR
VOLTAGE REGULATORS THE SUPERIOR ELECTRIC COMPANY HAS A STABILINE FOR YOUR NEEDS If you're looking for dependable automatic voltage regulation, investigate STABILINE first. You'll save time and money — you'll get longer service through better design and construction — you'll get performance and operating characteristics as advertised.
TYPE EM4102
On November 15, 1949, the prices of VITREOSIL (Vitreous Silica) tubing, rod and transparent laboratory ware were reduced by 20%. Also, glazed laboratory ware prices have been cut back to former level. With prices as low as or lower than in the past 30 years, VITREOSIL is a better buy than ever. TYPE IE PORTABLE
STABILINE Type EM (Electromechanical) fea tures zero waveform distor tion, insensitivity to mag nitude and power factor of load, no effect on system power factor; no critical adjustments. It is available in output ratings up to 100 KVA — for single and for 3 phase operation.
STABILINE Types IE and EM perform "as advertised". Each and every STABILINE Automatic Voltage Regulator is inspected and tested to the most rigid specifications. If — after you purchase a model of either type — you would like a copy of the in spection and test report, write us and a full report will be sent promptly. WRITE
804
US TODAY FOR FURTHER THE STABILINES
MEADOW
LABORATORY WARE
PRICES REDUCED!
AVAILABLE IN 2 TYPES STABILINE Type IE is in stantaneous and completely electronic in action. Keeps output voltage to within ± 0 . 1 % of preset value re gardless of wide line varia tions; to within ±0.15% regardless of load current or power factor changes. Waveform distortion never exceeds 3%. STABILINE Type IE is available in cab inet or rack mounting models — in numerous ratings.
V I T R E O S I L (Vitreous Silica)
STREET, BRISTOL,
DETAILS
VITREOSIL (Vitreous Silica) laboratory ware is a superior replacement for porcelain and glass and a satisfactory substitute for platinum in many cases. Greater chemical purity and high resistance to heat shock as compared to other ceramics and low initial cost compared to platinum have led to the universal adoption of VITREOSIL as a substitute for platinum, porcelain and other materials in many analytical and research procedures.
Standard items of VITREOSIL Laboratory Ware include transparent, glazed and unglazed cruci bles, evaporating dishes, beakers, tubing, etc.
ON
CONNECTICUT
VITREOSII .kMRTUMtWH
THE SUPERIOR ELECTRIC CO. BRISTOL,
C 0 Ν NICTI
CUT
POWERSTAT VARIABLE TRANSFORMERS · VQLTBDX A-C POWER SUPPUES · STABILINE VOLTAGE REGULATORS
Write for Technical full descriptions, and prices.
Bulletins giving specifications,
THE T H E R M A L S Y N D I C A T E , LTD. 12 East 46th St. · New York 17, Ν. Υ.
