30
31
1570,
1571.
1572.
1576.
(i) Coated with ceramic or ferritic materials (c.g. special field probes such us tangential field probes, multipliers, modulators, recorder probes etc.);
(i) With an open circuit sensitivity greater than-
0.12 V
A X Kilogauss
(V - VOIL A
Ampere);
(n) Specially designed parts, components, sub-assemblies and test equipment (including adapters, couplers, etc.) for the above.
Thermoelectric materials and devices, as follows-
(a) Thermoelectric materials with a maximum product of the figure of merit (2) and the temperature IT in °K) in excORS of 0.75;
(6) Junctions and combinations of junctions using any of the
materials in sub-itum (8);
(c) Heat absorbing or electrical power generating devices or both containing any of the junctions in sub-item (8);
(d) Other power genscaling devices which generate in excess of 10 watts per pound or of 500 watts per cubic foot of the devices basic thermoelectric components;
(c) Specialized parts, components and sub-assemblies, oot
elsewhere specifled, for the above devices.
Magnetometers having any of the following characteristics, and specialized parts therefor
(a) A sensitivity below 1.0 gamma (10-5 oersteds);
(b) A response time of less than 2 microseconds;
(c) Flurgate or paramagnetic Lypes.
Recording or reproducing equipment, as follows-
(5) Using magnetic techniques, except those specifically designed
for voice or music;
(b) Using electron beam operating in a vacuum, or laser- produced light beams (see also sub-item 1521(e) Group F) that produce patterns or images directly on the recording surface or both, and specialized equipment for image development;
(c) Graphic instruments capable of continuous direct recording of sinusoidal waves at frequencies exceeding 20 kilottertz; (d) Specialized parts, components and recording media for the
above.
Centrifugal testing apparatus or equipment possessing any of the following characteristics-
(a) Driven by a motor or motors having a total rated horse-
power greater than 400 horse-power;
(b) Capable of carrying a payload of 250 lb. (118 kg) or
more:
(c) Capable of exerting a centrifugal acceleration of 8 or more "g" on a payload of 200 lb. (90.7 kg) or mots,
1579.
1584.
1585.
Ion microscopes having a resolving power better than 10 Angstrom units,
Oscilloscopes and specialized parts therefor, as follows- (a) Cathode ray escilloscopes possessing any of the following
characteristics-
G) An amplißer bandwidth greater than 30 megahertz (defined as the band of frequencies over which the deflec- tion on the cathode ray tube does not fall below 70.7% of that at maximum point measured with a constanı impur voltage to the amplifier);
(M) Containing or designed for the use of-
(1) cathode ray memory tubes;
(2) cathode ray tubes with travelling wave or dis- tributed deflection structure or incorporating other techniques to minlarize mismatch of fast phenom- ena signals to the deflection structure.
(i) Ruggedized to meet a military specification; (iv) Rated for operation over an ambient temperature range of from below -23° C., lo above +$5* C.;
(v) A rise time of less than 12 nanoseconds.
(b) Oscilloscope plug-in units and external amplifiers and pre- amplifiers which have a bandwidth greater than that defined in sub-item (2)(i) above.
(c) Electronic devices for stroboscopic analysia of a signal (A sampling devices), whether sub-assemblies or separate units, designed to be used in conjunction with an oscilloscope ta permit the analysis of recurring phenomena, and which increase the capabilities of an oscilloscope to permit measurements within the limits of equipment embargoed by sub-item (a)(i) above.
Photographic equipment, as follows-
(a) High speed cinema recording cameras, as follows-
(1) Cameras in which the film is continuously advanced throughout the recording period, and which are capable of recording at rates exceeding 3,000 frames per second for the full framing height of standard 35 mm, wide photographic film or proportionately higher rates for lesser frame heights, or proportionately lower rates for greater frame heights:
(11) Cameras in which the film moves intermittently during the recording period, being automatically locked in place for each frome, and which are capable of recording at the following rates-
(1) exceeding 250 frames per second for 16 mm. Slm; (2) exceeding 130 frames per second for 35 mm. film; (3) exceeding 50 frames per second for 70 mm. Gilm
at full frame heights:
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