Analog Computers

Historical Document

Hitachi 200D Series Analog/Hybrid Computer

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Sales brochure for the Hitachi 200D Series desk-top analog/hybrid computers, covering three models: the 220D (24 amplifiers), 240D (40 amplifiers), and 260D (60 amplifiers). The series features high-speed parallel logic elements (flip-flops, comparators, counters), a 9-inch rectangular CRT display with four-channel simultaneous waveform readout and electronic marker generator, servo-set potentiometers adjustable by external signals for hybrid use, and a modular unit system allowing optional composition scaling. Key component types include dual integrators, dual multipliers, function generators, time delay units, quad electronic comparator/switch, and DA-143 DC amplifiers with overload recovery within 50 microseconds.

Manufacturer
Hitachi
System
Hitachi 200D Series (220D, 240D, 260D)
Type
Historical Document
Language
English
Learning track
introduction
Pages
8
Credit
Hitachi, Ltd., Tokyo Japan. Catalog No. CX-E042. Printed in Japan NH-K0H1. Distributed by Sevanco Nederland B.V., Nuenenseweg 103, Geldrop.
  • Hitachi 200D Series (220D, 240D, 260D)
  • Hitachi
  • analog/hybrid computer
  • product brochure
  • desk-top computer
  • logic elements

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Hitachi 200D Series Analog/Hybrid Computer

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H ighly stable operation elements A group of stable operation elements,which earneda good reputationin the Hitachi200 series,are also employedfor thls series,whether Iinearor non-linearelements.The high performanceof this seriesresultsfrom Hitachi'sexcellent circuit engineeringtechnique,fully and freely utilizing semiconductorsuch as FETs. Integratorcapacitorhas a patentedby Hitachi. Optional selection of composition scale Thanks to use of the thorough unit system,the user can obtain the desiredquantitv of elementswithout lack or surplus,and increae or decrease the numberof operation elementsoptionallyaccordingto the purposeof use. 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I i O -O lar -a l. l-l ral a- iO i _ Iar ]O ! rO! -Oa- -a O.!-q a a-a a-a a.o r.a -a--_a-.a,a ra,a -i-----n-;-| . ; a a a a a a a |,,t 1l| 10.11, a a a a a-a ata a a a a a a a a-a_a-a_a.a a a a a a a:a O-l a - a-tl - a l I e:t eit t'_-----ri--i-._ a a a.a,a a a I a a a ! a a a/.f O- r a-O o'r o r.'o ? ,?..:. i..i ir,:r ,? : ! . r.l. r'-"r:r 'r.,'r r i a a a.a a a a a a^a a a a:a a:arOlO rl , a a : a a -O a a a a a a a a . r-a a O--rfrrfrrOt'O'a--laji -f ._ o .. e .r a _ _-_a_a--_ra_a_a_ !_ ___._a_f _ .::_=!.! a a a a O- a a- a a a a r r- O . - | | O O -a a* 'a 'a; I 7^ " 4.& -+ .' ,* 'v "{* 't* t" ' f ,*-. 'ft "f ,t -{* f* -f f f," .|-' Es It" GCINTFICIL ANtrl trIISPLAY Controlanddisplayunits With easy-to-operation pushbuttonswitchesusedbasically, the 200D series'control panel and variousdisplay units havehigh performance. The 200D series'left side parts are a CRT display,and control and display units for logic elements.Sincethese partscan be separated from the main body, it is possibleto installjust the main body first, and then performadditional installationas required. CRTdisplay The rectangular9" CRT display is easy-to-see and allows four channelsof waveformsto be measuredsimultaneously. In the X-Y display mode, this unit can also display a Lissajous'figure. Since an electronic marker generator is incorporated, readoutis very easy. Logic control and indication With a largeindicatorat the centerand key switcheson the right and left sides.the logic control panel is easy to operarc. Logic elements On the left hand side, the set switch of the flip-flop is arranged. Throwing this key switch leftward sets the flip-flop,andthrowingrightwardresetsit. The indicationsof A and B mean a oosition on the pre-patchpanel.A and B show the lower and upper steps resoectivelv. The key switch on the right side is a manualsetswitchfor the comparator.lt hasa uniquefunction in that the levelof the comparatorcan be manuallyswitchedon/off. Throwing leftward switches it on, and throwing rightward puts it off, The lower two switchesare manualon/off switchesfor the digital function deviceinsidethe counter.The displayunit indicates the operational state of GATE (logic gate). COMP/SW(comparatorand manual switch), FLIP-FLOP and COUNTER,etc.Theseindicatorslight up in the SET or ON positions. Four thumbwheelswitchesunder the displayunit are used for selectingone of the counter outputs within 0 to 9. Theseswitchesare usedto performdebugging, changingthe operationtime of the timer, Four pushbutton switchesCL. RUN, STOP and STEP locatedat the lowest row are the cpntrol buttons for overall logicelements. CL(clear) The resetoutput of the flip-flop is "1". RUN The clock on the counteroanelis ooeratrve. The clock on the counterpanelstops. STOP STEP Push the svitch, and one clock appears on the STEPterminalof the counter. The control panel for the analogsystemis locatedat the left edgeof the main body. The main partsare arrangedin the followingorderfrom the too: I.JNITS D.V.M.indicator,overloadindicators, voltmeter,voltmeter function selector,null potentiometer,address selector,timer and integratortime scale,mode control and power switch, etc. D. V . M. A digital panelmeter of 3 or 4 digitscan be mountedon it. Overload indicator This overloadindicatoris providedfor monitoringoverload or overvoltage of eachamplifier. DA*143 type amplifier is providedwith a specialcircuit for detectingan overload,and recoverswithin only 50 !S underany severeovervoltage condition. This is especiallyeffective during high-speedrepetitive operatron. Voltmeter Needletype voltmeterwhich is usedto monitor the power suppliedand all systemelements. Voltmeter f unction selector Rotary selectorswitch which provjdesmonitor selection and voltmeterranging. Null ootentiometer This potentiometeris utilizedwhen the voltmeteris usedas a nul l meter. Address selector Pushbuttonswitch which providesaddressfor amplifier outputs A 0, A l , B 0, B l , C 0, C 1, trunk l i nes,TO Tl, potentiometerbus.POT BUSand externalinput EXT. Timer and integrator time scale Timer: This standardtimer for reoetitiveoperationcan be adjustedasfollows; x0.1 X1 lms-100ms 100ms- 10sec Integratortime scale: The time scalesof the integrator and time delay unit can be changedover by this switch si mul taneousl v. Mode control lC. OP. H : This switch controlsall integratorsin low speedoperation. lC, OP and H show the reset,operation and hold statesrespectivelV. SLAVE : ln combinationoperation of two or more computers,the slave computersare interlocked with the main one by pushingthis button. POTSET : In this mode,the potentiometercan be set. or its valuecan be readout. ALL lC: All integratorsassumethe reset condition regardlessof patching. P .P .: lC, OP and H modescan be changedover from one to anotheron the oatch oanel. TIIME R : The timer controlslC and OP. Powersuitch: AC power $/itch for all power supplies 1OO/ 11O/12O/2OO l22Q/24Ov. 5O/6OHz I @ nitachi, Ltd. TokvoJapan 6-2, 2-chome,Otemachi,Chiyoda-ku.Tokyo 100 T e l e p h o n e : Tokyo (270)2111 Cable: "HITACHY" TOKYO Telex J22395, 22432, 24491, 26375 Distributed by O*Aru0NeEERLAfOBtb fg!.3;tit.*?6$ GAI{GWI{tGri+Onwe NEDERTAND SEYAN(O B.Y. Nuenenseweg103 cELDROP- T.t. W^ CatalogNo. CX-E042 Printedin Japan NH-KlHl