NEW PRODUCTS
NOW!
Laser Supplies Four models of calibrated laser sup plies—50, 500, 1000, and 2000 J o u l e s are available. The Unitrol, single dial operation, automatically sets and locks the energy output. Other features in clude a direct reading dial, calibrated in Joules; a rapid and linear charging cycle; automatically regulated energy storage assuring stable output; and safety devices. Optech, Inc., 102 Grand St., Westbury, Ν. Υ. 420
A new line of DynaZoom Phase Con trast Microscopes includes 12 indi vidual models. The dark phase con trast system facilitates the observa tion of specimens which are colorless or differ little in refractive index from their surroundings. Both constant and variable power models are avail able. The latter allows the microscopist to view any specimen contin uously from one through two times the objective-eye-piece factor, at an infinite numbers of powers within the range. Overall magnification ranges from 17X through 1940X. One stand allows a choice of monocular, binocular, or photobinocular bodies. Bausch & Lomb, Inc., Rochester 2, Ν. Υ. 421
Temperature Programmer The Model 240Λ1 Power Proportion ing Temperature Programmer operates in the range 0° to 1000° C. The instru ment supplies 12 heating rates from 0.5° to 30° C./min. and can function equally well as an isothermal tempera ture controller making possible periods of linear temperature increase with periods of isothermal operation as de sired. F & M Scientific Corp., Starr Rd. and Route 41, Avondale, Pa. 4 2 2
RECORD VOLTS, OHMS, HIILLIAMPS
with PISTE RECORDER ...NO EXTRAS !
$ N e w Bausch. & Lomb VQ.M.-5 R E C O R D E R
ONLY
595 COMPLETE
. . . an all-new, complete 5-inch strip-chart recorder that breaks all precedent in the field . . . brings you the finest features of potentiometric recorders for one low price. Compare these exclusive advantages, all these "extras" at no extra cost, with any other recorder in its class. • Five voltage ranges, 10 millivolts to 500 volts D.C.—full scale
· Event marker, with interchangeable pens.
• Function switch with mechanical • Six linear ohms scales, pen letdown. l-to-100,000 ohms full scale, with . Operates in flat, 30° tilt, zener diode D.C. supply. o r wa ll-mounted position. • Four D.C. current ranges—10 · Compact—only 4%" χ microamperes to 100 milliamperes. 14%" x 11%". • Off balance input impedance— · Portable—only 16 lbs. over 10 megohms. TA . w ., ,, A J ° And more. Lots more! Mail the coupon • Five chart speeds, now for the whole story on this new 400-to-l range. 5-speed recorder with versatility-plus!
BAUSCH & LOMB ί BAUSCH & LOMB I INCORPORATED I I
81039 Bausch Street Rochester 2, N. Y. ,
Π Please demonstrate the V.O.M.-5 Recorder at my convenience. Π Send Recorder Catalog D-2032. Name Title Company Address City Zone State Circle No. 187 on Readers' Service Card VOL. 3 5 , N O . 3 , MARCH 1 9 6 3
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