NEW PRODUCTS
NEW
BATTERY POWERED, OPERATES 1500 VOLTS OFF-GROUND
ELECTROMETER MODEL 601 Ultra-high temperature, high pressure furnace is designed to heat test speci mens to 4 5 0 0 ° F under inert gas pressures up to 3 0 0 psig. Maximum sustained temperature is 5 6 0 0 ° F. The laboratory size Model 2 0 - 2 5 0 0 has a hot zone dimension of 2.47 inches diameter by 7 inches long. Loading access is from either end of the furnace with radial and axial ports provided for observation or instru mentation penetration into the hot zone. Installation requires only one power connection, an inlet-outlet con nection for water cooling, and connec tion t o a gas supply. Astro In dustries, Inc., 6 0 6 N. Olive St., Santa Barbara, Calif. 9 3 1 0 1 417
ι 1 mv f. s. to Wv, with 10 '4 π input resistance ι 10'* amp. f.s. to 0.3 amp. ι 100 ohms f.s. to 10" ohms ι 10" coulomb to 10s coulomb ι 200 μ v/hr. zero sta bility ι 1,000-hour battery life even when recording ι $625 with input leads
Lasers New frequencies for ruby and neodymium lasers are attained with a se ries of Raman cells. These cells, the KR series, use an active liquid such as di methyl sulfoxide or an aromatic hydro carbon to produce a Raman shift in the basic laser output. If the Model K-M frequency multiplier is used with the K-R, laser output may be frequency doubled, then Raman shifted, or vice versa. Korad Corp., 2520 Colorado Ave., Santa Monica, Calif. 418
IB Everything about this handy portable is new . . . except the name electrometer! Its 3-terminal input allows complete low terminal isolation, full high terminal guarding, from the case. It also permits 1500 volt off-ground capability—a feature offered only by the 6 0 1 . I B Extra flexibility is provided by 73 ranges for measuring voltage, current, resistance, charge and three outputs, highlighted by a 0.005% accuracy unity-gain amplifier. I H And perhaps best. . . now measure continuously for 1000 hours while using a 1 ma recorder! Makes recharging interruptions during long-term experiments un necessary. IB These are only a few reasons why the carry-around 601 electrometer is outstandingly new. More are detailed in our free Engineering Note. Send for it today!
Radiation M e t e r A solid state radiation survey meter powered by three "D" cell flashlight batteries weighs 2.5 pounds. The unit accepts any 900-V Geiger or scintilla tion probe and provides analog read out from 0-600 cpm X l , X10, X100 and X1000. Britco, 5909 Melrose Ave., Hollywood, Calif. 90038 419
KEITHLEY INSTRUMENTS 12415 . Cleveland, I N Euclid S TAve. R U M E NOhio T 44106 S EUROPE: 14 A v e . V i l l a r d i n , 1 0 0 9 P u l l y , S u i s s e
Circle No. 56 on Readers' Service Card V O L 39, NO. 3, MARCH 1967 ·
155 A
