PRINTOUT JOSEPH B. SIOOWSKl

Services Minicomputer, Almost-Free HomeTrial The HoneywelI Computer Control Division is advertising a 7-day home trial for the H112 Digital Controller-Computer at a cost of only $50 for handlingcharges. The machine is the basic 12-bit unit with a 4K word core memory, control logic, power supply, and drawer. Interested individuals are asked to contact the sales representative at their nearest Honeywell Computer Control Division office. Merger and Change E & M Instrument Company, manufacturer of the physiograph and telemetry equipments, is now Narco Bio-Systems. Narco Bio-Systems, Inc. Physiograph Life Instrumentation 7651 Airport Boulevard P.O. Box 12511 Houston, Texas 77017 (713) 644-7521

Science

Pitman-Moore, Inc., is no longer part of the Dow Chemical Company, having been purchased by Johnson & Johnson, and is now the veterinary marketing arm of the latter. General Radio Company and Grason-Stadler Company, both of West Concord, Massachusetts, have announced their agreement for the merging of the two firms. Grason-Stadler, under its existing management, is to operate as a wholly-owned General Radio subsidiary. Grason-Stadler Company has manufactured psychological and psychoacoustics equipment for the past 20 years. A month earlier, General Radio announced the purchase of a controlling interest in Time/Data Corporation of Palo Alto, California, a firm engaged in the design and manufacture of instruments and specialized computers for digital signal processing.

Products Function Generators Virtually any waveform over a frequency range of 0.0002 Hz to 2 MHz can be produced by two new function generators from Systron-Donner, The Behav. Res. Meth. & Instru., 1970, Vol. 2 (4)

Model 401 can generatesine,triangular,and square waves at 0.02 to 2 MHz in seven overlapping ranges. Output is 20 V peak to peak with open circuit, and 10 V peak to peak into 50 ohms. The Model 410 generates sine, square, triangular, swept, and sawtooth waveforms covering a range of 0.0002 Hz to 2 MHz. Output is via two 4Q..V peak- to-peak channels. For both models, dynamic output range is 80 dB for low-level operation. Square-wave rise time is 40 nsec. Price: Model 401 is $395: the 410 is $995. Systron-Donner Corporation Datapulse Division I 0150 S. Jefferson Boulevard Culver City, California 90230 Low-Cost Scope Cameras Teledyne has introduced the Telford Type "P" oscilloscope camera, which the company claims combines low purchase power and operating costs with superior performance. Controls have been reduced to a minimum. The camera is prefocused and the lens aperture is predetermined for Polaroid Land Type 20 film (ASA 3000). Eight exposuresin each roll, 3~ x 2% in. TeledyneCameraSystems 131 N. Fifth Avenue Arcadia,California91006 The Polaroid CU-5 Land Camera is an instant hard-copy system that produces 3 x 4 in. black-and-white (in 15 sec) or color pictures (in 60 sec) produced from a CRT display. The camera requires no focusing, has simple exposure settings, and has a pistol-like grip and shutter-trigger mechanism. The price of the system, including camera and light hood, is approximately $275.

black graticule of no-parallex internal graticule tubes. A dark or bright vertical line on the CRT shows the operator that the camera is unfocused. The lamp can be switched on or off, flashed by the shutter-release mechanism, intensity varied, and used to "fog" the film to increase contrast of faint CRT traces. X-Y Recorder The BBN/DE Plotomatic Series 700 is advertised as being the lowest-cost line of quality X-Y recordersever offered, starting at $750. The recorder uses the new PAD/LOAD paper-handling system, which is claimed to operate three times faster than conventional single-sheet recorders. Load a 5Q..sheet pad of paper into the machine and, as each page is consumed, simply tear it off, exposing the new sheet. Single sheets of 8~ x II in. graph paper can be used also. No rezeroing the pen between plots. A disposable fiber cartridge-pen writing system eliminatesink handling and pen cleaning. Color changes are accomplished quickly by a simple replacement. The PLOTOMATIC 715 offers ranges from .1 mv/in. to 10V/in. (0.5 mv/cm to 5 V/cm) at $880. The Model 705 has one input range and a few less conveniences for $750. One-year warranty.

Bolt Beranek & Newman, Inc. Data Equipment Division 1762 McGaw Avenue Santa Ana, California92705

Disk Controllersfor Minicomputers A new line of disk-memory system controllers, the Information Data Systems 5000 series, is specifically designed for users of the Interdata Model III and Data General NOVA minicomputers. The Interdata controller can handle up to 256k PolaroidCorporation g-bit words expandable in increments of 119 Windsor Street 32k to eight times that amount; transfer Cambridge, Massachusetts 02139 rates can be handled as high as 1.2-million per second. The unit designed for NOVA Hewlett-Packard recently announced a can handle up to 128k 16-bit words to "low-cost" scope camera, the Modell98A eight times that amount. Prices start at priced at $350. The 198A uses Polaroid $3,580. back and standard flat-pack self-processing film Shutter speeds range from 1/60 to Information Data Systems 1 sec and the camera can be focused with 8620 E. Eight Mile Road an external indicator that eliminates the Detroit, Michigan 48234 need for through-the-lens sighting. The lens is 75 mm £3.5. A battery-powered lamp NewMiniature Recorders illuminates the CRT face to delineate the Esterline Angus is marketing the

199

"Minigraph" miniature recorder priced from $100. The recorder is abou t the size of a child's shoe box, is inkless, and uses special pressure-sensitive paper. A choice of 14 chart speeds is available by changing gear trains. The unit has four basic movements-zero to 10 microA, zero to 50 microA, zero to 100 microA, and zero to I microA. Esterline Angus Division of Esterline Corporation Box 24000 Indianapolis, Indiana 46224

waves and is all solid state. Portable and compact, the test oscillator uses a standard 9-V battery. Output: B-V peak to peak-all ranges. Output impedance: 5,000 ohms. Frequency: Saw and pulse-O.I Hz to 100kHz; square-D.05 Hz to 50 kHz. Rise time: Square and pulse-0.5 microsec. Phase Corporation Electronics Division 315 A Boston Avenue Medford, Massachusetts 02155

Cassette Memory to Replace Paper Tape The TerMlcorder terminal memory unit, Magnetic Tape System for PDP-S The Model TS·8C magnetic tape system using standard C-60 cassettes, can replace has a read/write speed of 25 ips and a data paper-tape equipment as a transmission transfer rate of 20k characters per second. media. The unit can be ordered either fully The unit is designed for use with PDP-S interfaced or as a basic tape deck with series processors. The read-after-write head read/write electronics and either fast provides for instant data checking. A start/stop synchronous capability or separate erase head and individual incremental write/synchronous-read longitudinal and cyclical redundancy check capability. Available interfaces permit registers facilitate flaw corrections. Direct acceptance of parallel or serial data. Level memory access is possible, and either 7- or converters are available. Prices start at 9·track ~-in. magnetic tape configurations $465. are available. The $11 ,300 price includes controller, controller subroutine software, Telex/Midwestern Instruments Division and one tape handler. Tape handlers (up to 6422 East 41st Street th ree more) may be added at Tulsa, Oklahoma 74135 approximately $5,200 each. Implantable Transmitter The Model M-5 telemeters EKG, EMG, Infotec, Inc. and EEG transmitting in the FM band. 70 Newton Road Weight is I g; size is 1 x I x 0.4 em. Price: Plainview, New York 11803 $125. Logic Level Tester The LLT.()()1 Logic Level Tester can detect both logic levels and extremely fast positive·going pulses. The unit may beused to test any logic operating from a -12-V source. Price $35.

Belair Electronics Laboratories Box 650 Bowie, Maryland 20715 Solid State Electronic Kits Kaye Engineering markets a number of reasonably-priced solid-state electronic kits with integrated circuits. Kits include: Photocell ligh t Trigger-Amplifier No.IC-100 at $4.95; Decimal-to-Binary Converter Matrix (No. K201O), $4.95; Square-Wave Generator (No. K-2009) at $3.95; Audio Circuit Experimenter's Kit (No. AK·300), $9.95; and others. Kaye Engineering P.O. Box 3932 Long Beach, California 90803 TAPAC The Totally Automated Psychological Assessment Console (TAPAC) is designed to present an unlimited variety of audible and visual material to a test S and then record the responses. During one testing session, it is possible to proceed from true-false, multiple-choice, to different intertrial intervals, to advance upon his command, advance on correct response, incorrect response on time, and to record or not record latency for each frame presented. During the same testing session, it is possible to present more than 500 different frames and record S's responses to each one. A front view of the system is shown in Fig. I. The audio-visual material appears simple to prepare. The system uses

BRS Foringer 5451 Holland Drive Beltsville, Maryland 20705 Optical Wedge Holder A 2·wedge holder by R. Gerbrands is designed to provide a convenient mounting for 5-7/8·in.-diam neutral density wedges. The unit can be installed in an optical set-up to provide precise control of light intensity. Wedges operate in opposite directions, making compensating wedges unnecessary. Ralph Gerbrands Co., Inc. 8 Beck Road Arlington, Massachusetts 02174 Test Oscillator Kit A test oscillator kit is being marketed by Phase Corporation for $34.95. The unit generates pulse, sawtooth, and square

200

Fig. 1. S's view of the Totally Automated Psychological Assessment Console (TAPAC).

Bebav. Res. Metb. & Instru., 1970, Vol. 2 (4)

an IBM-type aperture card with coded information which simultaneously rear-screen projects the stimulus material and decodes the prepunched data. Lehigh Valley Electronics, Inc. Department MK Box 125 Fogelsville, Pennsylvania 18051

Briefs Another Minicomputer User'sGroup Data General Corporation, manufacturer of the Nova and Supernova minicomputers, has organized a user's group. The first meeting of the group was held in Atlantic City, New Jersey, during the Spring Joint Computer Conference, May 5·8. There are currently 400 Nova and Supernova computersinstalled. NewInterdata Minicomputer Interdata is introducing the Model I, an 8·bit byte-oriented processor geared to control applications. The machine will operate on both 8- and 16-bit instructions and, in the basic configuration, the I-microsec core will be offered in 2k words. It is expandable to 16k, core or read-only memory. Cost: $4,650, including a real-time clock and input circuits for a Teletype or data set. Other peripherals are extra.

made a major corporate decision to enter the minicomputer field. The organization and ties of the new minicomputer project to corporate Westinghouse and to Hagan/Computer Systems have yet to be firmed. The effort willconcentrate on new or modified designs in smaller than the already produced Prodac modular blocks. One new product will be the ROM programmed logic box. Plans for the present call for the Prodac 2000 line to remain with the Hagan operation. First deliveries out of the new operation should come within a year or so. Monolithic IC Digital-to-Analog Converter Analog Devices, a large supplier of circuit modules has introduced its first monolithic IC. The pDAC IS a 12·bit highly-accurate D-to·A converter. It appears that the only other monolithic converter around currently is Fairchild's Io-bit fJA722.

IC Memory Developments Semiconductor memories drew a. great deal of attention at the InternationalSolid State Circuits Conference. Some of the specific devices drawing comment were: An LSI bipolar memory chip (Fairchild Semiconductor Corporation)organized in a 256 x I array and offering 7o-nsec read access time and 4o-nsec write time. A I ,025-bit bipolar read-only memory with a So-nsec access time has been developed by Hewlett-Packard, Bell Laboratories reports a diode-coupled, bipolartransistormemory DEC Competitor Digital Computer Controls, lnc., of cell integrated on 64-bit chips for use in Fairfield, NewJersey,appears to have been modules ranging from 4k to 16k words; formed to second-source the PDP-8 series access time is 50 nsec. computers made by Digital Equipment Corporation (DEC). The company has ComputerSales The top 10 in computer-industry introduced the OCC·1I2, which. it claims, is hardware-, software·, and revenues for 1%9 are IBM (69.2% of the plug-compatible with DEC's PDP·8, 8/1, market, a drop from the 72.7% of 1968), and 8/L computers. The only externally Univac (5.6%), Honeywell (4.7%), noticeable departure is that the user must Burroughs (4.2%), GE (4.0%), Control choose between a negative and positive Data (3.6%), RCA (3.2%), National Cash bus, depending on which PDP model he is Register (2.7%), Xerox (1.0%), and Digital Equipment Corporation (0.8%). According attempting to mimic. Internally, the circuits are arranged on to a survey performed by International five boards instead of the 1IO for DEC. Data Corporation, the computer industry The OCC 112 is somewhat faster than the in the U.S. chalked up S1O.1 billion in PDP-8 series, having a I.2-microsec cycle revenues in 1969, an increase of 17% over time, but it is available with 1.5 microsec I %8. The value of equipment shipped to match the DEC machines. Externally, remained level at approximately S7 billion. the 1-0 pulses are said to be identical.The The difference in total revenue is due to word is that OCC is offering some price the sharp growth of nonequipment sectors advantages over DEC. In the choice of such as software, time sharing, and options, for example, some versions are education. An increase of 180/0-20% is said to be 40% cheaper than the expected annually, reaching about comparable 8/1; the OCC I 12 is 10% less S24.4 billion in 1974. than the 8/L in stripped form. l00,OOO-Hour Lamp Westinghouse Minicomputer A solid-state lamp that can emit light Westinghouse Electric Corporation has continuously for about 10 years has been

Bebav. Res. Meth. & Instru., 1970, Vol. 2 (4)

developed by Bell Telephone Laboratories. The lamps are made of synthetically-grown gallium phosphide crystals, a transparent solid material resembling amber. Miniscule amounts of this crystal give off red or green light, with almost no heat, when small electric current is passed through it. New TV Camera A new eye-like closed-circuit television camera with surveillance research potential has been developed by Motorola, Inc. Automatically adaptable to light variations, the cameraprovides a minimum of 5QO-line horizontal resolution between- 0.05-fc scene illumination (moonlight conditions) and 8,OOQ.fc illumination (bright sunlight). In many instances, the system obviates the need for a two-camera system and expensive lighting required for night-time surveillance. The unit is priced at S13,350 and includes a 10:I zoom lens and enclosed all-weather housing. Additional information is available from Jerry Ewing, MotorolaCommunications and Electronics, Inc., 1301 E. Algonquin Road, Schaumburg, Illinois 60172. Software New software for the Nova and Supernova computers will include a disk-operating system, Fortran IV, and a complete Algol system. The disk-operating system will provide a complete file system for manipulating data by name.A seriesof overlay routines will allow the system to provide almost unlimited address space. Fortran IV will be full ASA and will permit double precision arithmetic: Algol will include all run-time features. Outputs of the Fortran and Algol compilers wDl be compatible. The package wm be available free to Nova and Supernova users by midsummer 1970. Data General Corporation Route 9 Southboro, Massachusetts 01772

BreathSwitch Fairchild Controls, a division of Fairchild Camera and Instrument Corporation, has developed a breath switch device that could prove useful for some research applications. The Breath Switch Control consists of two PSF lOo-A pressure switches and a solid-state dc relay with power input and external control terminals. It requires only a puff of air to actuate. Anyone unable to use their hands needs merely to blow into a funnel on the right side of the unit to activate the control. A puff of air into the funnel at the left side willshut off the controlled device. 201

Digital-to-Analog Converters Digital-to-Analog Converters may be purchased from the following firms:

ComputerIndustries, Inc. 14761 Califa Street Van Nuys,California 91401

Discon Corporation 1150Northwest 70th Street Fort Lauderdale, Florida33313

Adage, Inc. 1079Commonwealth Avenue Boston, Massachusetts 02159

ComputerProducts, Inc. P.O.Box 23849 Ft. Lauderdale, Florida33307

Dynamic System Electronics 1040W.Alameda Drive Tempe, Arizona 85281

Ames, Inc. Box3072 Tempe,Arizona 85281

Conductron-Ann Arbor 3475 Plymouth Road Ann Arbor, Michigan 48105

DynaPlex Division Teledyne Telemetry Company Box341 Princeton, New Jersey 08540

Amperex Corporation Science Accessories 65 Station Street Southport, Connecticut 06490

Control Equipment Corporation 19 Kearney Road Needham Heights, Massachusetts 02195

Analog Devices, Inc. 221 5th Street Cambridge, Massachusetts 01242 Analogic Company Division of Gordon Engineering Company 296 Newton Street Waltham, Massachusetts 02154 Astrodata,Inc. 240 E. Palais Road Anaheim, California 92805 Astrosystems, Inc. 6 Nevada Drive New HydePark, NewYork 10040 Atec Inc. 1125 Lumpkin Road Houston,Texas77043 Avco Electronics Division 2630 Glendale-Milford Road Cincinnati, Ohio 45241 AztechCorporation Sub Aerospace Research, Inc. 130 Lincoln Street Boston,Massachusetts 02135 Beckman Instruments, Inc. 2500 HarborBoulevard Fullerton,California 92632 Burns & Towne 18-36GraniteStreet Haverhill, Massachusetts 01830 Burr-Brown Research Corporation InternationalAirport Park Tucson,ArizonaOOOOO

Control Logic, Inc. 3 Strathmore Road Natick,Massachusetts 01760 Co-ord Switch LVC Industries, Inc. 102-48 43rd Avenue Corona,NewYork, 11368 Data-Controls Systems, Inc. East Uberty Street Danbury,Connecticut 06810 Data Device Corporation 100Tee Street Hicksville, NewYork 11801 DataSystems Division 15000CentralAvenue, SE Albuquerque, NewMexico 87112 DataTechnology, Inc. 65 Grove Street Watertown, Massachusetts 02172 Datascan, Inc. 1111 Paulison-lrvenue . Clifton, NewJersey07011 Datatron, Inc. 1562 Reynolds Street Santa Ana,California 92705 Datawest Corporation 7503 E. Osborn Road Scottsdale Arizona 85251 Datum,Inc. 170 E. Uberty Avenue Anaheim, California 92805

202

EMR-Telemetry Weston Instruments, Inc. Box3041 Sarasota, Florida33578 Electronic Associates, Inc. LongBranch Avenue LongBranch, New Jersey 07740 Electronic Engineering Company of California 1601 E. ChestnutAvenue Santa Ana,California 92701 Epsco, Inc. 411 Providence Highway Westwood, Massachusetts 02090 The Foxboro Company Neponset Avenue Foxboro, Massachusetts 02035 GAP Instrument Corporation 17 Brooklyn Avenue Westbury, NewYork 11590 Garrett Corporation 9851 Sepulveda Boulevard Los Angeles, California 90045 General Devices, Inc. Instrumentation Division P.O. Box 253 Princeton, New Jersey 08540 General RadioCompany 300 BakerAvenue West Concord, Massachusetts 01781

Digital EquipmentCorporation 146Main Street Maynard, Massachusetts 01754

Geodyne Division of EG&G, Inc. 151 BearHill Road Waltham, Massachusetts 02154

Digital Products VernitronCorporation 59 CentralAvenue Farmingdale, NewYork 11735

Geotech ATeledyne Company 3401 ShilohRoad Garland,Texas75040

Cambridge Thermionic Corporation 445 Concord Avenue Cambridge, Massachusetts 01238 ComputerConversions Corporation 6 Dunton Court East Northport, NewYork 11731

E·H Research Laboratories, Inc. 163 Adeline Street Oakland, California 94607

Behav. Res.Meth.& Instru., 1970,Vol. 2 (4)

Gulton Industries, Inc. Metuchen,New Jersey 08840 Hewlett-Packard 1501 Page Mill Road Palo Alto, California 94304 Information Instruments, Inc. 62 EnterpriseDrive Ann Arbor, Michigan 48103 Intercontinental Instruments, Inc. 500 Nuber Avenue Mt. Vernon, NewYork 10550 Kearfott Products GeneralPrecision 1150 McBride Avenue Little Falls,NewJersey 07424 Kepco, Inc. 131-38Sanford Avenue Flushing, NewYork 11355 Kollsman Instruments Corporation 80-08 45th Avenue Elmhurst, NewYork 11373 Lancer ElectronicsCorporation 1416 W. Main Street Norristown,Pennsylvania 16101 Leeds& Northrup Company SumneytownPike North Wales, Pennsylvania 19454 MonitorSystems,Inc. 401 Commerce Drive Ft. Washington, Pennsylvania 19034 Monsanto ElectronicInstruments 620 Passaic Avenue WestCaldwell, New Jersey 07006 Navigation Computer Corporation Valley Forge Industrial Park Norristown,Pennsylvania 19406 North Atlantic Industries, Inc. 200 TerminalDrive Plainview, NewYork 11803 PastorizaElectronics 385 Elliot Street Newton Upper Falls,Massachusetts 02164 Phoenix Data, Inc. 3384 W.Osborn Road Phoenix, Arizona 85017

Behav. Res. Meth. & lnstru., 1970, Vol.2 (4)

Potter Aeronautical Corporation Pottermeter Division U.S.Route 22 Union, NewJersey 07083

Powertec Division of Airtronics, Inc. 9168 DeSota Avenue Chatsworth,California 91311 Preston Scientific,Inc. 805 E. CerritusAvenue Anaheim, California92805 RC 95, Inc. 9 E. 38th Street NewYork, New York 10016

SigmaInstruments, Inc. 170 Pearl Street Braintree,Massachusetts 02184 The SingerCompany Gertsch Division 3211 S. La Cienega Los Angeles, California90016 Solid State ElectronicsCorporation 15321 Rayen Street Sepulveda, California91343 Space & Tactical SystemsCorporation I GarfieldCircle Burlington,Massachusetts 10803 SpragueElectric Company Marshall Street North Adams,Massachusetts 01247

Radiation, Inc. Control Division Box 430 Melbourne, Florida 32901

Straza Industries 790 GreenfieldDrive EI Cajon, California92021

Raytheon Computer Division 2700 S. Fairview Street Santa Ana, California92704

Systems Engineering Labs, Inc. P.O. Box 9148 Fort Lauderdale, Florida 33310

Redcor Corporation 7800 Deering Canoga Park, California91304

Techno Products Company 1128 N. LasPalmas Avenue Los Angeles, California 90038

RepublicAdvanced Technical SystemsGroup 9754 Deering Avenue Chatsworth, California91311

Tektronix, Inc. Box 500 Beaverton,Oregon 97005

RepublicCorporation NorthridgeEngineering 18758 Bryant Northridge,California91324 The Roback Corporation 1000 Buck Road Huntingdon Valley,Pennsylvania 19006 ScientificData Systems 701 S. Aviation Boulevard EI Segundo, California90245 SequentialElectronic Systems,Inc. 66 SawMill River Road Elmsford, New York 10523

Shallcross Division of Cutler Hammer Preston Street Selma, North Carolina 27576

Teledyne Telemetry 9320 Lincoln Boulevard Los Angeles, California90045 Theta Instrument Corporation Fairfield, NewJersey 07006 Towson Laboratories,Inc. 3500 Parkdale Avenue Baltimore,Maryland 21211 United Aircraft Norden Division Street Road Trevose, Pennsylvania 19047 Veeder-RootCompany 70 SargeantStreet Hartford, Connecticut 06105 Weston-Transicoil Trooper Road Worcester, Pennsylvania 19490

203