PACE TR-48 Analog Computer
P A\ G
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TF"-48
EAI
ELECTRONIC
analog cornputer
GmbH,Aastren
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ASSOCiATES,
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C o n t i n e w aBl r a n : c-h B r u s s e lB
s ,e l s i u m
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stepsto the solution of your
routine engineeringproblerrls.
Step l-Problem Anolysis
Problem is translated, i,nto
matllemq,tical d,escri,pti,on u
i,ng algebraic ond, d,i,fferent
oqntions.
This new EAI computer makes the benefits of analog simulation available to all
industrial, government or university research and engineering groups. Performing those mathematical operations required in the solution of most engineering
problems the TR-48 expands your engineering efort by offering . . .
Universql opprooch to scientific design . . . the behavior of systems belonging to
many and varied areas of physics and chemistry are governed by the same physical
principles.
Simplified mqthemqticol opprooch . . circumvents the shortcomings and excessive educational requirements of a purely rnathematical approach.
Better physicol insight into operation of the physical system rather than purely
mathematical description.
gives the engineer a "feeling"
Goncentrqled efforf on design optimizotion
for his problem without the distraction of conventional calculations.
A compulotionol tool compotible with problem synfhesis . . . the engineer ean
easily change problem parameters and immediately observe the resulting changes
in the system response.
Eosy communicqtion befween problem ond computer . . variables of the system under study are represented by easily understood analogous physical quantities.
Direct Grophicol Represenlqtion of problem solution.
PACE
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analog computer combinesexperienceprouen design with
increasedproblem soluing cepabilities
The compact, solid-state design of the TR-48 provides an analog computer large
enough to solve problems typical of most engineering groups, ana wfiictr can ü"
located right in the laboratory. No elaborate installation facitity with a specially
trained technical staff to operate it is required . . . no air-condltioned room . .'.
no special power requirements-it can be powered from any ordinary electrical
outlet . . . and becauseof its design simplicity and field proven dependability no
maintenance staff is required.
The TR-48 makes it convenient for the engineer with the problem to use the
computer . . ; the individual most familiar with the problem is present during
the course of the simulation to make those design decisions that only he cai
make . . . thus maximum benefits from analog simulation are obtained. The engineer can experiment with new designs that formerly were too cosily or time
consuming to try. He can perfect the design and work out all the ..bugs', right
on the computer . . before building pilots or prototypes, drastically reducing
design time and costs.
This dependable new computational tool is completely solid-state for highest
reliability and long trouble-free life. Its design carries with it the histoi-y of
maintenance-free reliability of its famous companion, the pACE TR-10. the
first completely transistorized analog computer.
Step 2-Progromming
An inlormation fl,ow sheet is
prepared, usi,ng a block d,i,agram to represent the uari,ous computer elements and.
th ei,r int er conn ecti,ons.
Step 3-Potching
With the ai.d,of thi,s di,agram
patclr, cord, and, bottle plug
c o n n e c t i , o nasr e n L a i l e b e tween a a,r i o u s computer
components,
Step 4-lnsertion of Problem
Pqrqmelers
Coeffici,ent setti,ng potenti,o m e t e r sa r e a d j u s t e d , t o
prouide desi,gn parameter
inputs.
Step S-Solufion
The computer solution is
performed in the eract manner prescri,bed bg the md,themati,cal equation.s.Solutions
are presented on an XY plotter.
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is quality engineeredfor simplicity, flexibility and
maintenance -free operation
instant warm-up-no
Proven solid-stote design
cooling problems. Completeiy solid-state design based
on the fleld proven circuits of its famous predecessor,
the PACE TR-10, of which over 300 units have compiled a remarkable history of trouble free operation.
substantially
High Speed Repetitive Operotion
reducesthe time required in arriving at the "opbimum"
problem solution.
problem circuits can be
Removqble potch ponel
patched and checked off the computer-thus making
most efficient use of actual time. Patched boards can
be stored for future use,
Modulqr potch ponel loyoul . . . patch panel is divided
into 12 similar functional areas, each terminating
operational ampliflers, integrator networks, potentiometers, multipliers, and func,tion generators. This
unique layout vastly reduces "patch panel clutter"
and thus aids in minimizing programming errors and
consequent "debugging" time. Color coded component
terminations promote programming efficiency. The
layout is easily changed to accommodate changes in
component configuration.
Bottle Plugs . . . cut down on costly programming time
and patch cord clutter, signiflcantly simplifying the
programming operation.
may be replaced easily and
Plug-in components
quickly for expansion or servicing.
Non-lineqr componenls . . . interchaegeably plug into
non-linear positions and most integrator network positions within the modules. Number of computer conflgurations are limited only by the number of components kept on hand.
is pre-wired to accept the maxiBosic computer .
mum complement of componenfs-ssn be expanded
remouing rnulticolored pre-patch pa,nel
simply by plugging in desired components-no additional wiring necessary.
Drqws less power thqn | 5O wott bulb . ' . no special
power requi.rements-operates from any 115 volt, 60
cycle outlet. (Also 220 V/50 cps, 1I5 V /50 cps, 127
V/50 cps)
each operational amplifier
Built-in input resistors
is terminated with convenient precision resistor networks; one-100K feedback resistor, two unity gain
inputs, and two gain 10 inputs. Summing junction
terminations permit the use of additional input
elements.
l0:l Time scole . . additional feedback capacitors in
each integrator network permit the individual 10:1
selection of integrator time scale by bottle-plug.
Humon engineered control ponel . . . designedto aid
problem solutions. AII controls required for the complete operation of the computer are provided in one
convenient location.
Electronic Digitol Voltmeter . . . provides 4-digit reading-plus polarity-for the precise, rapid digital readout of problem voltages and for the setting of coefficient potentiometers.
Push-butlon reqdoul . . . allows the output voltage of
all amplifiers, coefficient potentiometers, and input
trunks to be monitored on the Digital Voltmeter or
multi-range voltmeter.
. provides a convenient
Push-button mode control
means for eontrolling the operating modes of the
computer.
utilization of goldBus bor power disfribution
plated, Taper-Tab, copper bus bars eliminates complex
rear power cabling and simplifies maintenance.
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control panel is engineeredto aid problem solutions
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Control Pqnel is the nerve center of the TR-48 Computer . . . placing all controls for the complete operation of the computer in one convenient location'
lluman engineered panel design facilitates computer
provides means
utilization and problem solution
for controlling computer operation and metering of
component output voltages. All knobs, push-buttons,
and sr,vitchesare clearly labeled for easy identification.
computer operating modes
Mode Control
POT SET, RESET, HOLD, OPERATE AND REPETITIVE OPERATION . . ' are selectedbv means
each illuminated when energized,
of push-button
allowing the engineer to determine at a glance the
computer operating eondition.
push-button switches allow the
Output Selector
outdut voltage of all amplifiers, coefficient potentiometers, and input trunks to be monitored on the Digital
Voltmeter or multi-range voltmeter. The Output Selector is also terminated on the patch board permitting
outputs of interest to be monitored on external equipment.
a precision, multi-range meter for the
Voltmeter
monitoring of amplifier outputs, input trunks and
power supply voltages, and also used for the manual
balancing of operational amplifiers. Five meter ranges
are selected by rotary switch.
VM Selector Swirch . . . selects power voltages or outputs selectedby push-buttons for reading on voltmeter.
. permits the selection and adjustHSRO Control
ment of solution time for those TR-48's equipped
with High Speed Repetitive Operation.
immediately identifies
Overlood Indicotor Pqnel .
any amplifier that is in an overload condition.
allows control of primary power
Power Switch
to computer by push-button.
A digital voltmeter is provided on the TR-48 Control
Panel for precise, rapid digital readout of computing
voltages. Completely transistorized . . . there are no
stepping switches . .. . it offers the maximum in reliability. Its instantaneous operation vastly reduces
time for coetricient problem checking and general
readout of problem variables.
4-Digit Displcy . . . provides for automatic readings
and polari[y from 10 millivots to -+11.99 volts DQ
with fixed decimal point.
O.OSEIAccurocy . . . readings are accurate to -10.005
volts over the entire reading range.
Brilliont Output Disploy . . a high-brilliance optical
projection system is used to display the reading, sign,
and fixed decimal point.
TR_44
modular patch panel simplifies programming
The removable patch panel is arranged as a series of
12 modules, with each module terminating a grouping
of linear and non-linear computing components. This
design coupled with logical component terminations
assures maximum use of bottle plugs, thereby reducing patch panel clutter to a minimum even for
large problems. Long, across-the-board patching is
cut to a minimum. Problem patching, checking and
trouble shooting are more easily dccomplished and
there is less chance of patching error.
The panel is made up of individual 5 inch high by 1*
inch wide component patching blocks. It is 15 components in width and 4 in height. Patching block
terminations correspond to those of the patch bay,
which is formed by the insertion of the plug-in components into the computer. Gold-plated, phosphorbronze contact springs are inserted into the terminations on the component module so that when the
pre-patch panel is placed into the patch bay, positive
wiper contact is made with the patch cords and bottle
plugs inserted in the patch panel. Unique patch panel
design eliminates the possibility of "open" connections
due to looseor partial insertion of patch cords. Another
important feature of the TR-48 pre-patch panel is
the abili.tg to change the lagout as the component configurati.on i,s changed. This is accomplishedby loosening the retaining frame and replacing component
patching blocks, or rearranging existing ones as required by the new component configuration.
TF?-4,A
interchangeable,plug-in cornponentsand flexibility
make expansion es,sy
NON-IINEAR
The second position within each modular grouping of
components is wired to accept a variety of nonlinear
computing components. The standard TR-48 is prewired to accept the following interchangeable eomponents in this position:
TApe 7.096 or Type 7.099 Multi,plier
Tape 16.274 Variable DFG (5 Selected,Positions)
Tape 16.276 Log X DFG
Tape 16.281 /z Los X DFG
Tape 16.275 Xs DFG
Tape 12.764 DuaI Integrator Network
In addition, this position (in the middle column of the
modular component groupings) will accept the Type
2.462 Function Switch Group, the Type 12.763 Readout patching Unit, and the Type 2.426 Trunk Group.
OPERATIONATAMPTIFIERS
The first and third positions in the module are each
wired to accept a plug-in dual operational amplifier
unit. These amplifiers are basic to the performance
of all mathematical operations available in the TR-48.
With companion precision resistor networks terminated on the same patching block, they are used for
addition, subtraetion, and sign inversion. Integration
is performed by patching an operational amplifier to
an appropriate integrator network, located in the
fourth position of the module. "High-gain" operational amplifiers are also utilized as output and feedback devices for non-linear components to perform
multiplication, division, and function generation. In
any case, all.amplifiers are "uncommitted"-i.e,, can
be used in any mode of operation.
INIEGRATOR NETWORKS
This fourth position in the module accepts a Dual
Integrator Network, which contains the precision
feedback capacitors for use with a high-gain amplifier
to perform the operation of integration with respect
to time. The position is also wired to accept all nonIinear components (ineluding the Type 40.404 comparator), except the Type 16.274 Variable DFG.
COEFFICIENTSETTING POTENTIOMETERS
Position five in the modular grouping of components
is wired to accept the Type 2.440 Coefficient Setting
Potentiometer Group. This makes available five 10turn potentiometers used for inserting equation coefficients or problem parameters, initial and boundary
cönditions, and problem inputs into the computing
circuits. There are four grounded and one ungrounded
potentiometers in each group.
TR-4A
becomeseuen rnore uersatile with addition
of high speedrepetitiue operation group 2.424
The High Speed Repetitive Operation Group permits
the PACE TR-48 to be operated alternately as a realtime or high speed repetitive computing device. The
wide bandwidth of the TR-48 solid-state computing
components is utilized to produce problem solutions
many times each second . . yet there is no loss in
time computing accuracy.
These outstanding features of the Type 2.424 HSRO
Group add to the problem solving capabilities of the
TR-48 Computer.
o Instantaneou.s change from real ti.me or repetitiae
operati,on
requires no repotching or reprogrammi,ng , . . alloto immedi,ate, permanent record,ing of selected solutions.
o Computing times of from 20 to 500 mi,lli,second.s
per solution.
o Swi,tched control of soluti,on times at fi,red, uolues
of 20, 50, 100 and, 200 milli,seconds per soluti,on.
o Continuous control of soluti,on times between the
fiued aalues.
c AII soli.dstate timi,ng unit.
c Preci.sion polEstyrene f eed,baclcapacitors.
o SLAVE feature for control of two or more real
time or repetitiaelg operateil Tn-I8 Computers.
ln repetitioe operat'i,on,the computer is continuously cycled between the reset. and compute
mode of operation. The problem is, therefore,
solved repeatedly at some predetermined repetition rate, usually often enough to allow its
presentation on an oscilloscope.
Repetitive operation is obtained by switching the Mode
switch on the Control Panel to the Rep. Op. position
. . . this automatically changes the feedback capacitors
in the integrator network. so as to increase the time
scale by a factor of 500. The Compute Time switch is
then'used to select the desired repetitive rate of operation. Voltage signals generated by the REP. OP.
Timing Unit operate the high speed electro-mechanical
relays in each Integrator Network to cyele the computer between the reset and operate modes. Energizing
t}:.e RESET mode push-button stops the repetitive
operation. Since each integrator is capable of individual mode control, parts of the computer may be
run in "real time", while other parts operate repetitively. In addition, "multiple-speed" operation may be
accomplished, if desired. Thus high-speed "iterative
type" solutions may be achieved if required in a
given problem.
TYPICATUSESOF HIGH SPEEDREP OP
Sgstem Opttmizati,on . . . the selection of parameter values which give the best overall performance.
Boundarg Value Problen'Ls
the solution of
differential equations in which the problem is
to find the initial conditions for specified solutions of the equations.
Mod,el Bui.lding . . . the problem of determining
a mathematieal representation for a system of
known response.
Other uses of High Speed Repetitive Operation
. . . rap.id exploratory studies to conserve computing time . . . rapid approximation of optimum
system parameters and determination of stability regions of control systems . . . approximate
computation and display of integral transforms,
such as Fourier integrals, superposition integrals, and correlation functions
statistical
studies requiring many solutions . . . plus a wide
variety of routine computational problems requiring numerous solutions.
TYPICAL PROBLEMAREAS ARE:
Users of the PACE TR-48 Analog Computer will
find the High Speed Repetitive Operation Group
a'valuable aid in the solution of a variety of
computing problems. The high problem solution rates make it possible to instantaneously
view the effect of varying the parameters of a
problem. This unique ability provides a powerful and economical computational tool for solving
those problems requiring multiple solutions of
the problem equations.
transistorized dc operational amplifier . . . the basic buitding
block of the TR-48
I
DUAL AMPLIFIERMODUIE (Type 6.514)
The heart of the TR-48 is the transistorized DC operational amplifler..
By connecting various input or feedback networks to the operational'
amplifier speciflc mathematical operations are obtained.
The TR-48 computer employs identical, interchangeable, amplifier modules
each consisting of two transistorized DC amplifiers, terminated on the
patch panel as high-gain amplifiers. companion networks, consisting
of input and feedback resistors matched to 0.01/o accuracy, are conveniently terminated in the module for converting each amplifier to
inverter or summer operation by convenient bottle plugs.
Superior performonce chorqcteristics
low temper:ature drift
Iow offset .
low noise
extended usable frequency response.
Completely tronsistorized . . . for increased reliability
backed by
the enviable performance record of thousands of similar units operating
in the field.
Chopper stqbilized
each computing amplifier is individually and
automatically stabilized to reduce offset and drift to a minimum.
provided on every operational amIndividuql bqlqnce odiustment
plifier.
Single-ended input ond output.
emitter-follower bridge output circuit assures linear operation with low output impedance
lowcurrent emitter-follower input stage insures high input impedance
for excellent drift characteristics.
Norr:-?E-48
Computing Components, consi,sting of a computi,ng mod,ule anil a mated,
patching module segment of the pre-patch
panel, are illustrated aboae and on. the follou:ing pages,8 through 17.
Operational amplifiers in the TR-48 are terminated with companion precision input and
feedback resistors. . Insertion of a 4-prong
bottleplug into the top four holes of the
amplifler patching block connects a feedback
resistor across the amplifier and the common
connection of the input resistors (Summing
Junction) to the amplifier base. The amplifier thus functions as a summer with two
gain-of-l and two gain-of-10 inputs. Additional inputs may be connected to the summing junction termination available on the
back of the bottle plug. Omission of the 4prong bottle plug makes the amplifier available as a high gain amplifier for connection
to integrator networks or non-linear components.
==::::::.
TR_44
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DUAL fNTEGRATORNETWORK (Type 12.764)
o Consists of two networks, each containing the precision capacitors
that enable any high gain amplifier to be connected to perform the
mathematical operation of integration with respect to time.
Simple bottle plug patching connects integrator network to adjacent
high gain amplifier, thus converting it to an integrator.
Contains all relays necessary for switching the integrator to RESET,
HOLD, OPERATP modes of operation. Relay operation is controlled
by computer mode push-button on control panel.
Makes available "IC" termination for introducing non-zero initial
condition directly into the integrator, if required. The same IC termination is used both for the "real time" and the "Rep Op" modes,
thus eliminating need for repatching when operating alternately between these modes. In that no additional amplifiers need be used for
IC inputs when in Rep Op, redundant equipment usage is eliminated.
Individua,l integrator 10 to 1 time scale change accomplishedby bottle
plug patching in either real time or HSRO operation.
Precision -+0.057o Polystyrene capacitors used throughout to reduce
drift and assure high dynamic accuracy.
o Patching terminations allow separate control of mode of operation
of integrators for signal tracking and storage. Multi-speed and iterative operation is thus made feasible.
tsl i
164
COEFFICIENT
SETTINGPOTENTIOMETER
GROUP
(Type 2.rt4o)
o Used for setting problem coefficients,initial and
boundary conditions, aS well as problem inputs.
o Each group provides five potentiometers mounted
in the potentiometer area on the right-front of
the TR-48, as well as suitable patch panel terrriinations for their connection into problem circuits.
o Consists of ten-turn, wire-wound, 5,000 ohm
potentiometers individually fused and equipped
with calibrated adjustment knobs.
o The top and arm of four potentiometers in the
group are terminated on the patch panel with
their bottom ends internally grounded. The fifth
potentiometer is terminated with top, bottom,
and arm available at the patch panel.
o Potentiometer patching, area includes plus and
minus 10 volt reference terminations and convenient ground terminations for grounding ungrounded potentiometers.
o Potentiometer setting has been made extremely
simple for the operator. The computer is placed
in the "Pot Set" mode and the pot to be set
selected on the readout panel. The Coefficient
Setting then appears on the digital voltmeter
and the potentiometer is adjusted as desired.
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MUtTfPtfER (Types 7.O99 o,nd 7.096)
A completely solid-state device rvhich makes use of the quarter-square
technique of multiplication to produce, when used in conjunction with
a high-gain amplifler, a product of two input variables of either polarity.
The mathematical operations of division, squaring, and square root may
also be performed.
Solid-stqfe reliobility
silicon diodes and ultra-stable resistors are
used throughout to minimize drift and insure long, maintenance-free life.
Wide compufing bondwidth . . dynamic performance unsurpassedby
any other type of continuous multiplication device-bandwidth compatible
with the wide bandwidth of the amplifier.
low noise'.
and infinite reso]ution result from the elimination of
servo potentiometers and time division oscillators.
Four Quqdront multiplicqtion . . when used in associationwith a transistorized DC amplifier the product-XY/L0
is produeed from inputs
+X, .-X, *Y and -Y. Output polarity may be easily reversed by interchanging *X and -X or fY and -Y input connections.
can be plugged into any non-linear or integrator
Plug-in design
network position-permits rapid replacement for servicing and interchanging of components.
clearly marked patching terminations simplify
Simplified potching
interconnection between other computing components. Bottle-plug connections place the multiplier' in the "multiply", "divide", "square" or
"square-root" mode of operation.
VATRIABIEDfODE FUNCTION GENERATOR(Type 16.2741
A flxed breakpoint, variable slope, diode funötion generator composed
of completely solid-state components-used with external high-gain, transistorized operational amplifiers to produce an electrical representation of
arbitrary functions by straight line segments.
10/19 Segment Operotion . . . VDFG may be used to generate two nonlinear functions with a 1O-segmentrepresentation, one for positive inputs
and one for negative inputs, or these may be combined for 19-segment
function generation, for inpr-rt signals of both polarities.
DFG Operotion utilizes external high gain transistorized operational amplifiers
two required for each 10-segment function generator or
for a single 19-segment combination.
Funclion Set-up to produce a desired function is made by screwdriver
adjustment from the side of the DFG chassis. Ten quick adjustments
are all that are required for setup.
DFG chqssis is mounted in area over TR-48 control panel and is housed
in slide-out unit for ease of set-up adjustments.
DFG Pqtching Module mounts within the computer in a variety of selected
non-linear positions of the patch panel.
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tOG DIODE FUNCTION GENERATOR
(Types 16.276 ond 16.281)
Log function generators are extremely valuable in a
general purpose simulation for raising a variable to
an unusual power (i.e., 1.8, 2.6, elc.) or a variable
power (i.e., Xr). They are also useful for multiplication, division, squaring, square-rooting, etc. as alternates for multipliers or other function generators.
The Type 16.276 and 16.281 Log Generators have the
following characteristics :
o Dual fixed diode function generators composed of
completely solid-state components.
r Two types available:
1. Type L6.276 produces an output of 5 L o g , o
(10X) for an X input.
2. Type 16.281 produces an output of 2.5 Log,o
(10X) for an X input.
o When operated in combination with an external
high-gain, transistorized operational amplifier,
each type of LOG DFG is capable of the folIowing operation:
A. Output of Log,o for an X input of one polarity.
B. Output of Log,oX, and Log,oX, when inputs
X, and X, are unipolar and of opposite sign
(two amplifiers required).
C. An exponent output when the LOG DFG is
used in feedback of high-gain amplifier.
o Utilizes six (6) straight line segments to approximate a logarithmic curve for a single sign of input
voltage.
o Accepts inputs in the range -f 10 volts DC; provides outputs in the range of i 10 volts DC depending upon connections.
r Mounts in any nonlinear or integrator network
position.
10
DUAL X' DIODE FUNCTION GENERATOR
(Type 16.275)
o A dual fixed diode function generator composed
completely solid-state components.
o One dual chassis is capable of the following opt
tions:
A. When operated in combination with an op
tional amplifier it will yield an Xz output ror
an X input of one polarity.
B. When operated in combination with two operational amplifiers it will deliver outputs of (X,)'z
and (Xr)2 when both X, and X, are unipolar
and of opposite sign.
C. When operating in combination with two opera.tional amplifiers it will deliver an output of
X'? with the input X varying both plus and
minus in sign.
D. A square root output may be obtained by using
the X'z DFG in the feedback of an operational
amplifier.
o Accepts inputs to r 10 volts, provides outputs of
+ 10 volts.
o Fully electronic to provide wide computing bandwidth.
COMPARATOR (Type 4o.4o4l
o Compares a variable input voltage to an arbitrary
bias voltage and causes a switching operation to
be performed; very useful for "decision making"
operations within the computer program.
o Consists of a three-stage, transistor amplifier and
a high-speed, double-pole-throw relay.
o When the algebraic sum of input variable and bias
voltage is positive, the relay will assume one posi-'
tion and, when this sum is negative, it will assume
the other.
o Two comparators mounted in a single plug-in unit
. . can be placed in any non-linear position.
dccessorles
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TRUNK GROUP (Type 2.426)
o Used for connection of problem signal voltages between two TR-48 Computers operated in parallel,
or for connection of computer to external hardware
or instrumentation.
o Provides 15 patch panel terminations for rear connected inter-console trunking cables.
o Patching area mounts in integrator network position in any one of three lower rows of the middle
column of component modular groupings.
READOUT MODUTE (Type 12.7631
o Provides patch panel terminations for accessory
recording equipment cabled to rear of TR-48 Com'
puter.
o Terminations provided are:
A. X and Y inputs for X-Y Recorder, as well as
"automatic pen lift" control of recorder.
B. Inputs for two 4-channel time base recorders
or one 8-channel recorder, or 10 Trunks, as required.
C. X and Y inputs for external oseilloscope.
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FUNCTfON SWITCH GROUP (Type 2.462)
o Provides flve independent, single-pole double-throw,
center-off".function switches for performing manual switching operations.
o Function switches mounted in lower portion of
Coefficient Setting Potentiometer panel.
o Function switch patching area mounts in any one
of three lower Integrator Network positions in
middle column of component modular groupings.
o Switch contacts are rated at 720 volts. L.0 amneres
resistive load.
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IIADOUI FANEL
accessor\es
r Bottle Plugs
Type 5.173-6-prong "T" for connecting Integrator Network to adjacent high gain amplifier.
Type 5.172-.1-prong for converting high gain amplifier
to inverter or summer operation,
Type 5.1?4-2-prong-horizontal for connecting adjacent
horizontal terminations.
o Multiple Block (Type 542.605)
Provides a 6-hole, off-the-patch-panel tie point for interconnecting patch cords or increasing the number of output holes of computing components.
o Patching Kit (Type 5.171) Includes the following:
20 each patch cords Type 510.033-0,6" long; Color:
Blaek
30 each patch cords Type 510.033-I, 1_2"long; Color:
Brown
20 each patch cords Type 510.033-2,18" 'long; Color:
Orange
10 each pateh cords Type 510.033-4,30" long, Color:
Blue
30 each bottle plugs Type 5.174
32 each bottle plugs Type 5.172
8 each bottle plugs Type 5.173
2 each Multiple Blocks, Type 542.605
r Service Shelf (?ype 51.116) permits convenient main:
tenance of computing components under normal operating conditions.
1t
TR
- 4rA
ca,nbe ord,eredwith the cornponent
complementto satisfy indiuidual requirements
BAS|C TR-48-O
The TR-48-0 is a minimum linear eomputer available
to the user desiring to acquire his initial eomputing
capability at minimum cost. The TR-48-0 has all of
the precision features of the expanded models and may
be used in the simulation of small linear systems. It
may be readily expanded up to the full 48 arnplifier
size-through simple plug-in additions, as desired.
BASTCTR-48-l
The TR-48-1 provides for more extended linear simulation than the TR-48-0, but is still designed for the
laboratory desiring a reliable and expandable analog
computer-at a modest initial investment. The TR-48-1
is capable'of solving a variety of linear engineering
problems, and as your problems become more complex,
your TR-48-1 may be easily expanded.
EXPANDED TR.48.2
The TR-48-2 contains a somewhat larger eomplement
of linear equipment, as well as a variety of non-linear
computing elements. Its expandedtotal capacity makes
it ideally suited for the simulation of complex linear
and non-linear systems.
EXPANDED TR.48-3
The TR-48-3 represents the computer in its fully
expanded form. Highly complex and non-linear simulations may be accomplished on this machine. The
complement of equipment within the TR-48-3 rs extremely varied and versatile and will satisfy the needs
of the typical design engineering activity
EXPANDEDTR-48-3plus spore non-lineqr componenls
o Effectively provides several eomputers in one console. By purchasing additional interchangeable nonlinear components, beyond the maximum eapacity,
you can achieve unusual computing flexibility.
RECOMMENDED
COMPUTER
SIZES
-o
-l
TR.48
-2
-3
Pre-wire Console .........
1
Push-button Readout S;"i;;
1
Electronic Digital Voltmeter
Reference System
P o w e r S u p p l y . . . . . . . . . . . . . . . . . . . . . . . . .I.
Overload Indicator Panel ....
I
Service Shelf ........
1
Repetitive Operation Group
10
Operational Amplifiers . ........
Coefficient Setting
P o t e n t i o m e t e r s . . . . .... . .... . . .. . .
10
Integrator Networks
4
Multipliers
Variable DFG's*
./--\itJS
1
1
1
1
1
1
1
1
20
1
1
1
1
1
1
1
1
32
1
1
1
1
1
1
1
1
48
20
8
40
12
3
4
60
16
5
6
4
,
4
Eq,uipment
eäöloe
1x;"lä,X,$;";
Comparators
Function Switches .. ,
External Trunks
Readout Patching Module
Patch Panel
2
1
1
1
1
1
1
D
O
15
1
1
2
30
1
1
2
OTHER TR-48 EXPANSIONS
than those recommended above are readily accomplished by simply
plugging in the desired number and type of computing
power voltages, monitoring and
compon€nts
control facilities for a fully expanded computer are
incorporated in the Basic Computer--no additional
wiring necessary.
*Eacb DFG bas one pl,us oohage card. and. one mi.nas aohage card'.
**Eacb Log X DFG has two plat card.s and. hpo minu card.s.
exxxgotb
X2 DFG conraiu one plas uohage card. and oneminustohage card.
Tbe plut and minus cards in tlse abooe DFG'r may be used lor seqarate functions or conabined.
changing the equipm,entcornplement
is easy u)ith the TR-48
Loosen the pre-patch panel
reta,i,ni,ng frame,
L2
Snap out the patchi,ng blo
of th,e component to be t
placed, and replace it with.
block f or the desi,red cot
ponent.
TR-4,4
uersatility allows one computer to
do the work of seueral
Considerable flexibility in selecting the complement of
computing components is available with the TR-48.
All components plug into the computer console from
the front . . . the patch bay is automatically formed
by the terminations on the front of each component.
This feature, coupled witli the ease of changing the
patch panel layout and the ability to place different
types of computing components into the same console
position, provides an unusual degree of flexibility in
arranging different equipment eomplements, both
initially and for later expansion.
SIAVING TR-48 COMPUTERS. . . provides a "Multiple
TR-48" analog computer with sufficient capacity to
solve highly complex system design problems. With
the TR-48 SLAVE feature you have complete control
of your problem solution
from either computer.
TR-48 Computers are easily SLAVED
or disconnected to permit the solution of two or more individual
problems simultaneously.
The standard TR-48 console is wired to accept the
following assignment of computing components:
COMPONENI
P O S I T I O NN o .
POStilON
DESCRIPIION
Type 6.514 Amplifier
Type 42.283
Potentiometer
Type L2.764
Int. Netrvork
Type 7.099 Multiplier
0 through 11
Amplifier
0 through 11
Potentiometer
0, 2, 3,'4, 5, 6, Int. Network
7, 8, 9, 10,':it,
0, 2, 3, 4, 5, 6, Non-Linear
7, 8, 9, 10, 11,
Int. Network
Type 1.6.274V D F G
0 through 11
Non-Linear
Type'J.6.276& 1 6 . 2 8 1 0 through 11
Non-Linear
(with exception Int. Network
LOG DFG
of #1 Int. Net.)
Type 16.275 X' DFG 0 through 11
Non-Linear
(with exception Integrator
of Jf 1 Int. Net.)
Network
Type 12.763 Recorder 1
Integrator
Network
Type 12.766
Integrator
Function Switeh
4, 7, L0
Network
Type 19.261Trunks
4,7, I0
Integrator
Network
Note: Special computers may be supplied,with different
assignment of computing components.
Tigltten the pre-patclt pamel
retai,ruing frame.
At tlte front of tlte computer
and wi,th the pre-patah panel
remooed, Ioosen the two retai.ruing fasteners whi,ch seane tlte componen! to be
replaced.
PHYSICATDESCRIPTION
width
Height
48 inches
25 inches
Depth
20ä inches
expanded)
W e i g h t . . . . . .3 2 0 l b s . ,
Power Source
115/230volts, 50-60 cycle
Power Requirement .. . . . . . . . . .u n d e r150 watts
(fully expanded)
;il;;;. ii;ii;
PuIl the component out of
the computer.
PIug the d,es'ireilcomponent
into the emptg posi.tion. No
re-wi,ri,ng'i,s necessarg.
P /A C
-l-
TF?-4€J^
is backed by EAI's unpo,ralleledexperiencein
the deuelopment,manufacture and application
of general purpose analog computers
PACE PC-|2 Contlol Computer
PACE TR-l0... the first oll-trqnri:lorized Anolog Computor
(Equi,pment speeifications contained herein ore subject to change)
P R I N T E DI N U S A
B u l l e t i nN o . A C 6 2 2 2 - l - B