Analog Computers

English translation

Nichtlineare Netzwerke NN 800 — Beschreibung und Bedienungsanleitung

Complete English translation of the original German-language document (28 pages).


Module NN 800 — Nonlinear Networks

Description and Operating Instructions


Preface

This description is intended to inform users of the TELEFUNKEN Precision Computer RA 800 and RA 800 HYBRID about additional application possibilities when expanding the computer with NN 800 modules. The operating principle and operation of the module are described; computational-technical notes are contained in special publications and in the “Computing Guide for Analog Computers.”

The description contains a listing of the possible configurations with nonlinear networks as well as instructions for their programming, divided into corresponding sections.

In order to achieve the greatest possible overview in the “Operation” section, consecutively numbered short paragraphs are given whose sequence corresponds to the chronological order of the activities to be performed.


Contents

SectionPage
1. General1
2. Mechanical Construction1
3. Operating Principle1
3.1. Parabolic Multiplier4
3.2. Fixed Functions sin(π/2)x, sin πx, cos(π/2)x, cos πx7
3.3. Function ½ log 100x12
3.4. Variably Adjustable Functions15
4. Operation20
4.1. Calibration20
4.2. Multiplier20
4.3. sin(π/2)x21
4.4. cos(π/2)x22
4.5. sin πx22
4.6. cos πx22
4.7. ½ log 100x23
4.8. Adjustable Function F(+x)23
4.9. Adjustable Function F(−x)24

1. General

To expand the application possibilities of the precision analog computer RA 800 HYBRID, the NN 800 module is employed. It makes it possible, through the simple plugging in of cards, to implement multipliers, function generators for sine, cosine, and logarithm functions, or variable diode-function-generators in any desired configuration. The module can accommodate an arbitrary number of cards of either the diode-technique type or of the linear amplifier type (LFB), or it can be equipped with both card types. The module can also be equipped with its own fixed-function cards if the relevant cards are not available from the RA computer itself.


2. Mechanical Construction

The NN 800 “Nonlinear Networks” module accommodates two plug-in cards arranged side by side (Magazin 1 and Magazin 2). Each magazine slot has space for the card components. As shown in Figure 2, one possible arrangement of the configurations is illustrated. The sliding rails on the right side of the network-module casing accept the cards. Multiple card types can be inserted into correspondingly sized slots.

The NN 800 module can be installed at various positions in the computer frame. Its connection cable runs to the patch panel (programming field) on the front. Through the patch panel the networks and function generators are connected with the computing amplifiers of the RA 800. The NN 800 module can draw its power supply either from the RA 800 power supply unit or operate from its own power supply (N55A unit at socket Bu 1–5).

The networks and function generators are connected via a flat cable at the rear of the chassis through bus strips on the computer (RA 400). The two measuring strips 5, 8 and 10 make the connection to the servo-multiplier patch fields. Measuring strips 25, 26, and 39 serve for Sections 5, 8, and 10. Each half has two bus strips (logically between “A” and “B” as well as “C” and “D”) for the multiplier networks to convert an input variable to output form.

To the right and left of the module, the NN 800 module provides control inputs from Drawer 1 as well as “carry-over” connections to the neighboring modules. The NN 800 module and the adjacent “carry-over” module are thus connected to the programming panel. Inputs from the programming amplifiers to busbar fields 8A, 9A, 1C, 9C are placed to the left and right on the programming field.

At the “Null” position of section 4.7, the ZM29 instrument is used, which can also serve as a null instrument for other operations when required.


3. Operating Principle

3.1. Parabolic Multiplier

(Cards to be installed: see Figure 2)

The inputs to each of two parallel multiplier networks lie at the patch field of the servo-multipliers at sockets “A” (here: “H+A”), “B” (here “−B”), and “D”. The interconnection of the outputs lies at the sockets adjacent to the patch field of the NN 800 module at sockets “A” (top), “B” (bottom), and “C” and “D”. The NN 800 module thereby changes an input variable so that an output is produced.

In Figure 4 the schematic of a parallel multiplier is shown. The two busbars “SM” pass the multiplier network in parallel. A socket “SM” is connected to the summing point of a freely selectable amplifier which receives all the different network outputs (summing). In addition, a feedback path with a capacitor (condenser socket) is applied at the patch field between output and summing point (normalization to 20 kΩ), and additionally a feedback with a capacitor (condenser socket) at the patch field between output and summing point. This condenser socket is contained in the RA 800 H computing amplifier RV 801 (HA2A + HI2A).

If the NN 800 module also contains the appropriate inverting amplifiers, only the networks at sockets “B” and “D” with both polarities of the input variable need to be switched in. For the networks of fields A and C, one polarity is sufficient. If the inputs are switched in with correct sign, the function appears at the output of the downstream amplifier also with correct sign.


3.2. Fixed Functions sin(π/2)x, sin πx, cos(π/2)x, cos πx

(Cards to be installed: see Figures 5, 6, 7, 8)

The inputs to the fixed-function networks lie at the patch field of the servo-multipliers at sockets “A”, “+B”, “−B”, and “−D”. The interconnection of the outputs between “A” and “B” lies at the patch field of the NN 800 module at sockets “C”. The sockets “A” and “C” between the fields allow a freely selectable inverting amplifier to be connected for a second result. The network connections are logically between “A” and “B” as well as “C” and “D”.

In Figure 8, the overall schematic for a network of this type is shown with the required downstream amplifier. The summing socket “SM” connects the downstream amplifier to the summing point. The freely selectable downstream amplifier (summing amplifier) is connected to one of the free amplifiers. A socket “SM” is connected to the summing point of a freely selectable amplifier, and additionally a feedback path with a capacitor (condenser socket) at the patch field between output and summing point (normalization to 20 kΩ). This condenser socket is contained in the RA 800 H computing amplifier RV 801 (HA2A + HI2A).

If the NN 800 module contains the appropriate inverting amplifiers, only the networks at sockets “B” and “D” need to be switched in with both polarities of the input variable. For the networks of fields A and C, one polarity is sufficient. If the inputs are switched in with the correct sign, the function appears at the output of the downstream amplifier also with the correct sign.

Special note: The input sockets of the multiplier networks have no internal computing amplifiers. The functioning is hence directly dependent on the network inputs themselves.

Figure 5 caption: Module configuration for the +sin(π/2)x function

Figure 6 caption: Module configuration for the +sin πx function

Figure 7 caption: Module configuration for the +cos(π/2)x function

Figure 8 caption: Module configuration for the +cos πx function

The following figures show the card-slot assignments for the respective trigonometric functions:

Figure 5 — Configuration for +sin(π/2)x:

SlotMagazine 1Magazine 2
Bu 1(see note)SIN 1A (Bu 30)
Bu 2Rs 1SIN 1B (Bu 29)
Bu 3(see note)SIN 1A (Bu 28)
Bu 4SIN 1B (Bu 27)
Bu 5Rs 2SIN 1A (Bu 26)
Bu 6HI 2ASIN 1B (Bu 25)
Bu 7HA 2ASIN 1A (Bu 24)
Bu 8HI 2ASIN 1B (Bu 23)
Bu 9HA 2ARs 3, SIN 1A (Bu 22)
Bu 10HI 2ASIN 1B (Bu 21)
Bu 11HA 2ARs 4, SIN 1A (Bu 20)
Bu 12HI 2ASIN 1B (Bu 19)
Bu 13HA 2ARs 5, SIN 1A (Bu 18)
Bu 14VN 1ASIN 1B (Bu 17)
Bu 15SIN 1BRs 6, SIN 1A (Bu 16)
(bottom)Rs 7, Rs 8Rs 9, Rs 10
Bus connections0A (3A), 0C (3C)1A (4A), 1C (4C)

Note: For power supply from the RA 800 power unit, plug card AD1A at Bu 5. For stand-alone power supply, plug unit N55A at Bu 1–5.

Figure 6 — Configuration for +sin πx: (Similar layout with SIN 2A and SIN 2B cards in corresponding positions.)

Figure 7 — Configuration for +cos(π/2)x: (Similar layout with COS 1A and COS 1B cards in corresponding positions.)

Figure 8 — Configuration for +cos πx: (Similar layout with COS 2A and COS 2B cards in corresponding positions.)


The amplifier switched to the sin(π/2)x function must be fed back with a short-circuit plug from the output to the 10-ohm input (normalization to 20 kΩ) and additionally have a feedback with a capacitor (condenser socket) at the patch field between output and summing point. This condenser socket is contained in the RA 800 H computing amplifier RV 801 (HA2A + HI2A).

In Figure 9, the schematic of the sin(π/2)x function is shown.

If the NN 800 module contains the appropriate inverting amplifiers, only the networks at sockets “B” and “D” with both polarities of the input variable need to be switched in. For the networks of fields A and C, one polarity is sufficient. If the inputs are switched in with the correct sign, the function appears at the output of the downstream amplifier also with the correct sign.


3.3. Function ½ log 100x

(Cards to be installed: see Figure 10)

Figure 10 — Configuration for ½ log 100x:

SlotMagazine 1Magazine 2
Bu 1(see note)— (Bu 30)
Bu 2Rs 1— (Bu 29)
Bu 3(see note)LOG 1A (Bu 28)
Bu 4— (Bu 27)
Bu 5Rs 2— (Bu 26)
Bu 6HI 2ALOG 1A (Bu 25)
Bu 7HA 2A— (Bu 24)
Bu 8HI 2A— (Bu 23)
Bu 9HA 2ARs 3
Bu 10HI 2A— (Bu 21)
Bu 11HA 2ARs 4, LOG 1A (Bu 20)
Bu 12HI 2A— (Bu 19)
Bu 13HA 2ARs 5
Bu 14VN 1A— (Bu 17)
Bu 15LOG 1ARs 6, LOG 1A (Bu 16)
(bottom)Rs 7, Rs 8Rs 9, Rs 10
Bus connections0A (3A), 0C (3C)1A (4A), 1C (4C)

Note: For power supply from the RA 800 power unit, plug card AD1A at Bu 5. For stand-alone power supply, plug unit N55A at Bu 1–5.


The inputs of the individual networks for the log function (i.e., networks of the stacked cards) lie at the patch field of the servo-multipliers at sockets “+A”, “+B”, “−D”, and “−D”. The sockets “A” and “C” between the fields allow a freely selectable inverting amplifier to be connected. The interconnection between “A” and “B” in the patch field likewise serves this purpose. The network outputs lie logically between “A” and “B” and between “C” and “D” at the patch field.

In Figure 11 the overall schematic for such a network configuration with the required downstream amplifier is shown. The summing socket “SM” connects the downstream amplifier’s summing point to the freely selectable amplifier. A freely selectable downstream amplifier is connected to the summing point. A condenser socket is placed at the patch field between output and summing point, which is contained in the RA 800 H computing amplifier RV 801 (HA2A + HI2A).

If the inputs of fields B and D are switched in with the correct sign, the function also appears with correct sign at the output of the downstream amplifier. If inputs are switched in sign-correctly, the function appears sign-correctly at the output of the downstream amplifier.

The two possible assignment groups in the RA 800 HYBRID are addressed at locations belonging to the addresses of this resolution.

Each NN 800 module can accommodate up to 16 log-function networks (8 per magazine), implemented as stacked cards. The input sockets of the module are rated for low internal computing amplifiers. The functioning of the individual network inputs at the inputs of several other modules also connected in the network field is therefore not impaired. Any number of functions per module can be assigned without additional programming steps; the corresponding network elements remain available.

Special note: The input sockets have no internal computing amplifiers. The functioning is therefore directly dependent on the network inputs themselves. Incorrect polarity at the inputs should be avoided.


[page 6: figure only — Figure 1: Possible installation positions of the NN 800 module in the RA 800 Precision Analog Computer / RA 800 Hybrid. Shows layout diagram of computer frame with slots for: Computing amplifiers (00–47), Computing amplifiers (50–95), Function generator, variable, or variable function generator or DMs 800 (NN 800), Logic elements, Digital display field, Electronic resolver (NN 800) ×3, Patch field (Programming field), Potentiometer (00–43), Potentiometer (50–95), TH II or electronic resolver or (NN 800), Modulation multiplier or (NN 800), NG I, NG II, DMs 800 or variable function generator or (NN 800), Digital voltmeter, Control unit, Comparator and noise generator or (NN 800), Electronic resolver or computing amplifier or (NN 800).]


[page 7: figure only — Figure 2: Card configuration for the Multiplier. Shows two-magazine slot diagram with: Magazine 1 slots Bu 1–15 populated with HI 2A, HA 2A (alternating, Bu 6–14), VN 1A (Bu 14), PM3B (Bu 15), plus relay cards Rs 1–Rs 6 at mid positions; Magazine 2 slots Bu 16–30 populated with PM3A and PM3B alternating; relay cards Rs 7–Rs 10 at bottom. Bus connections: 0A (3A), 0C (3C), 1A (4A), 1C (4C). Note: For power supply from RA 800 power unit, plug card AD1A at Bu 5. For stand-alone power supply, plug unit N55A at Bu 1–5.]


[page 9: figure only — Figure 3: Connection of the interface cables between the NN 800 modules and the patch-field measuring strips of the RA 400 computer and assignment of those measuring strips to the servo-multiplier patch fields. Shows diagram with first and second NN 800 modules connected via cables to computer bus strips (measuring strips 1–21 top row, 14–42 bottom row, with key positions 9, 18, 19, 28, 29 circled), linked to the Servo-multiplier Programming Field containing positions 0–9 top and 5–9 bottom.]


[page 10: figure only — Figure 4: Circuit of a parallel multiplier. Shows schematic with two “SM” (servo-multiplier) buses feeding into a PM network block, connected via a summing amplifier with feedback, producing output −(A·B + C·D). Caption notes: socket “SM” of a freely selectable amplifier is connected, fed back via a short-circuit plug from the output to the 10-ohm input (normalization to 20 kΩ), and additionally a feedback with capacitor (condenser socket) is applied at the patch field between output and summing point. This condenser socket is contained in the RA 800 H computing amplifier RV 801 (HA2A + HI2A).]


[page 12: figure only — Figure 5: Card configuration for the +sin(π/2)x function. (Described in detail under Section 3.2 above.)]


[page 13: figure only — Figure 6: Card configuration for the +sin πx function. (Similar dual-magazine layout with SIN 2A and SIN 2B cards.)]


[page 14: figure only — Figure 7: Card configuration for the +cos(π/2)x function. (Similar dual-magazine layout with COS 1A and COS 1B cards.)]


[page 15: figure only — Figure 8: Card configuration for the +cos πx function. (Similar dual-magazine layout with COS 2A and COS 2B cards.)]


The amplifier switched in for this function must be fed back with a short-circuit plug from the output to the 10-ohm input (normalization to 20 kΩ) and additionally have a feedback with a capacitor (condenser socket) at the patch field between output and summing point. This condenser socket is contained in the RA 800 H computing amplifier RV 801 (HA2A + HI2A).

Figure 9 — Circuit of the sin(π/2)x function:

Shows schematic with inputs +A and −B/−B feeding into function networks (SIN blocks), whose outputs lead via summing points (positions 5, 6, 10) through a downstream inverting amplifier to produce outputs C + sin(π/2)·A (upper) and C + sin(π/2)·B (lower). The ZM29 is used at the “Null” measurement position.

If the NN 800 module contains the appropriate inverting amplifiers, only the networks at sockets “B” and “D” need to be connected with both polarities of the input variable. For the networks in fields A and C, one polarity is sufficient. If the inputs are connected with correct sign, the function appears at the output of the downstream amplifier with correct sign as well.


[page 17: figure only — Figure 10: Card configuration for ½ log 100x. (Described in detail under Section 3.3 above. Dual-magazine layout with LOG 1A cards at specified positions, with many slots empty (—).)]


The inputs of each individual log-function network lie at the patch field of the servo-multipliers at sockets “+A”, “+B”, “−D”, and “−D”. The sockets “A” and “C” between the fields allow a freely selectable inverting amplifier to be connected for a second result. The outputs of the networks lie logically between “A” and “B” as well as between “C” and “D” in the patch field.

In Figure 11 the overall schematic for this network configuration with the required downstream amplifier is shown. The summing socket “SM” connects the downstream amplifier at the summing point. The freely selectable downstream amplifier is connected there. Additionally, a condenser socket is placed at the patch field between output and summing point (normalization to 20 kΩ). This condenser socket is contained in the RA 800 H computing amplifier RV 801 (HA2A + HI2A).

If the inputs of fields B and D are connected with the correct sign, the function appears with the correct sign at the output of the downstream amplifier.

The two possible addressing groups in the RA 800 HYBRID are accessed at the addresses associated with this resolution.

Each NN 800 module can accommodate up to 16 log-function networks (8 stacked cards per magazine). The input sockets of the module accept low-level signals directly. The functioning of the individual network inputs at several further modules also connected in the network field is therefore not impaired. Any number of function assignments per module can be made without additional programming effort.

Special note: The input sockets carry very low internal resistance amplifiers. Incorrect polarity at the inputs should therefore be avoided in order not to impair the function.

no potentiometers are located at the inputs.

[page 19: Figure 11 — Circuit for the function ½ log 100 X (schematic diagram with two diode function blocks, resistor network, and associated patch-panel wiring for plug unit ER 763)]

Figure 11 — Circuit for the function ½ log 100 X

3.4. Variable Settable Functions

(Patching examples for the card slots: see Figures 12 and 13)

Eight card types with various properties are available; these are listed below.

Plug unitProperties
VAR 1 Aa) Ordinate offset between +10 V and −10 V.
b) Polygonal approximation consisting of 5 segments with positively increasing adjustable slope; starting at 0 V. Breakpoints of the four outer segments adjustable between 0 V and +10 V.
VAR 2 APolygonal approximation consisting of 6 segments with positively increasing adjustable slope; breakpoints adjustable between 0 V and +10 V.

[page 20]

Plug unitProperties
VAR 1 Ba) Ordinate offset between +10 V and −10 V.
b) Polygonal approximation consisting of 5 segments with positively increasing adjustable slope; starting at 0 V. Breakpoints of the four outer segments adjustable between 0 V and +10 V.
VAR 2 BPolygonal approximation consisting of 6 segments with positively increasing adjustable slope; breakpoints adjustable between 0 V and +10 V.
VAR 1 Ca) Ordinate offset between +10 V and −10 V.
b) Polygonal approximation consisting of 5 segments with positively increasing adjustable slope; starting at 0 V. Breakpoints of the four outer segments adjustable between 0 V and +10 V.
VAR 2 CPolygonal approximation consisting of 6 segments with positively increasing adjustable slope; breakpoints adjustable between 0 V and +10 V.
VAR 1 Da) Ordinate offset between +10 V and −10 V.
b) Polygonal approximation consisting of 3 segments with positively increasing adjustable slope; starting at 0 V. Breakpoints of the two outer segments adjustable between 0 V and +10 V.
VAR 2 DPolygonal approximation consisting of 6 segments with positively increasing adjustable slope; breakpoints adjustable between 0 V and +10 V.

Each of these plug units is inserted at the appropriate slot in the NN-Einschub (NN plug-in unit) on both sides in the N-N-Einschub. The network connections (two-connection blocks Bu 30 and Bu 27 — see Figure 12; three-connection blocks Bu 29 and Bu 26 — see Figure 13) are interconnected. The “X” book on the left in the slot field (Bu 30) and Bu 27 are connected with the “−X” book to the designated plug units.

The inputs of the “B” books (Bu 29 and Bu 30) are connected on the left and right with a ”+” book on the designated plug units.


[page 21]

The ”−” book is placed at the nearest upper plug-in slot (i.e., Bu 28 and Bu 27). The network-supply book “A” (network field A, Bu 28 and Bu 27 — three-connection plug-in Bu 28 and Bu 27 — see Figure 12) is used to interconnect all the associated function generators. The “X” book on the left of the function-generator slot field (Bu 30) is connected together with the “−X” book on the corresponding plug units. A single connection block can be used to implement the function F(+X), as shown in the first and fourth quadrants. To check whether the setting is correct, it should be verified that the function F(+X) has a positive slope in those quadrants. If the function of the second SM-unit provides negative values in the first and fourth quadrants, then the sign of the function generator SM unit is applied in both second and third quadrants as well. All functions with positive and negative slopes in the first quadrant are available. Corresponding to the arrangement of the individual SM unit connection blocks, each multiplier block also has an SM-connection available (Circuit diagram, Fig. 15). At every Server-Multiplier plug field there is then also one function slot available.


[page 22: Figure 12 — Patching layout for function F(+x)]

Figure 12 — Patching layout for function F(+x)

Layout of Magazine 1 and Magazine 2 slots (Bu 1 through Bu 30) with associated plug units:

  • Bu 1–5: (see note)
  • Bu 6: HI 2A
  • Bu 7: HA 2A
  • Bu 8: HI 2A
  • Bu 9: HA 2A
  • Bu 10: HI 2A
  • Bu 11: HA 2A
  • Bu 12: HI 2A
  • Bu 13: HA 2A
  • Bu 14: VN 1A
  • Bu 15: VAR 2D
  • Bu 16–30 (Magazine 2): VAR 1A, VAR 2A, VAR 1B, VAR 2B, VAR 1C, VAR 2C, VAR 1D, VAR 2D arranged in pairs Rs 1 through Rs 10

Supply cards: Rs 7, Rs 8 (0A/3A, 0C/3C); Rs 9, Rs 10 (1A/4A, 1C/4C)

Connections: to 0A(3A), to 0C(3C), to 1A(4A), to 1C(4C), to 0A(3A), to 0C(3C), to 1A(4A), to 1C(4C)

Note: For power supply from the RA 800 network unit: plug card AD1A at Bu 5. For a separate power supply: plug unit NS5A at Bu 1–5.

[ER 764]


[page 23: Figure 13 — Patching layout for function F(−x)]

Figure 13 — Patching layout for function F(−x)

Layout of Magazine 1 and Magazine 2 slots (Bu 1 through Bu 30) with associated plug units:

Magazine 1:

  • Bu 1–5: (see note)
  • Bu 6: HI 2A
  • Bu 7: HA 2A
  • Bu 8: HI 2A
  • Bu 9: HA 2A
  • Bu 10: HI 2A
  • Bu 11: HA 2A
  • Bu 12: HI 2A
  • Bu 13: HA 2A
  • Bu 14: VN 1A
  • Bu 15: VAR 2D

Magazine 2 (Bu 16–30): VAR 1C, VAR 2C, VAR 1D, VAR 2D, VAR 1C, VAR 2C, VAR 1D, VAR 2D, VAR 1C, VAR 2C, VAR 1D, VAR 2D, VAR 1C, VAR 2C, VAR 1D arranged in pairs Rs 1 through Rs 10

Supply and connections as for Figure 12.

Note: For power supply from the RA 800 network unit: plug card AD1A at Bu 5. For a separate power supply: plug unit NS5A at Bu 1–5.

[ER 765]


4. Operation

4.1. Einers (Single Units)

In order to bring the function generator to a programmed state, the sum output of the respective inverter in the NN-Einschub must be set to zero at the time of start. The power-on sequence is as follows:

  1. Switch the NN-Einschub on.
  2. Set the “Z 29” switch to the programming mode of the computer.
  3. In the programming mode of the computer, disconnect the “inverter input” from the external inputs by pressing the associated “A” or “C” switches in the NN-Einschub (depress the button at the associated position in the NN-Einschub).
  4. The display on the NN 800-Einschub at the “A” and “C” buttons corresponds to the respective plug position.
  5. All inputs and outputs of the inverters remain programmable throughout the operating program.

4.2. Multipliers

  1. Fit Bild 2 with plug-in cards.
  2. Insert into the computer.

[page 25]

  1. Connect the linking cable from the plug-in slot of the chosen switch field of the computer.
  2. On the programming panel of the computer “X” switch field, connect the selected switch (in the black field with white quantity markings) with the selected switch field (“B” switch — in the white field at the bottom left) and connect from the selected programming slot.
  3. A voltage-control command with a positive input magnitude on the “B” switches is checked.
  4. The outputs of the inverter act as additional positive input magnitude at the “B” switches.
  5. An output of “SM” at the sum output of the inverter (Sum Q) is an open-configuration result.
  6. Den Ausgang des Verstärkers auf einem 10er-Summenpunkt (Buchse S) über einen Kondensatorvektor (100 pF) verbinden.

The function generator achieves proportionally the output of the inverter when Bild 4 is programmed. By using the output resistors the output of the switching element provides — provided the output is at the address of the inverter on the digital voltmeter.

4.3. ½ · cos X

  1. Insert per Bild 2 (Beilage).
  2. Insert into the computer.
  3. Connect with the linking cable.

The programming is the same as described under 4.3; the circuit corresponds to Bild 9.


[page 25 continued]

One further positive input magnitude at the “A” switch — after going through the appropriate switch field of the computer for the “X” switch with the selected (switch in black field with white quantity count) switch “B” — connects from the selected plug slot, so that

a voltage-control command with a positive input magnitude at the “A” switch and simultaneously, after changing the pointer of the sum output (Buchse S) to one inverter’s output, causes

the lower book in the SM-field (Buchse “B”) gets connected together with the same book “A” switches, and the negative Umlenkung (inversion) of the pointer is achieved in the lower portion equally. All books are open for the second and fourth quadrant functions (Buchse “A”). In both third and fourth quadrant the Ausgangsgrösse (output value) of the inverter is correctly proportional to the function. Den Ausgang des Verstärkers auf einem 10er-Summenpunkt (Buchse S) über einen Kondensatorresektor (100 pF) verbinden.

The function generator produces proportionally the output of the inverter when Bild 9 is programmed. By using the output resistors, the output of the SM field is available at the address of the inverter on the digital voltmeter.

4.3.½ · +cos X

  1. Insert per Bild 8 (Beilage).
  2. Insert into the computer.
  3. Connect with the linking cable.

The programming is the same as described under 4.3; the circuit corresponds to Bild 9.


[page 26]

  1. All books in the SM-field (Buchse “A”, low B; Buchse “C”) are connected as inputs of F(x) from the Sum Q and connected with the Sum Punkt (Buchse S) of the open inverters — via this step, the correct direction.
  2. The output of the open inverters is connected to all the 10er-Summenpunkte (Buchse S) via a capacitor resistor (100 pF) above an inverter.
  3. The output of the inverter is connected to the lower 10er-Summenpunkt (Buchse S) via a capacitor resistor (100 pF).
  4. The output of this inverter is connected to its own 10er-Summenpunkt (Buchse S) via a capacitor resistor (100 pF) over an inverter.

The function generator achieves proportionally the output of the inverter when Bild 11 is programmed. By applying the output resistors, the output of the SM switching field is available at the address of the inverter on the digital voltmeter.

  1. The negative input magnitude from the outputs of the inverter is connected to the “B” switch position. 9–10. As 4.7.

At the output of the inverter the function achieves ½ log 100 X. The circuit for this function is accordingly Bild 11.

At the output of the inverter the function achieves + ½ log 100 X. The circuit for this function is the same as Bild 11.

4.4. + cos (π/V) · X

  1. Insert per Bild 7 (Beilage).
  2. Insert into the computer.
  3. Connect with the linking cable.

The programming is the same as described under 4.3; the circuit corresponds to Bild 9.

4.5. + sin (π/V) · X

  1. Insert per Bild 8 (Beilage).
  2. Insert into the computer.
  3. Connect with the linking cable.

The programming is the same as described under 4.3; the circuit corresponds to Bild 9.

4.6. + cos (π/V) · X [second variant]

  1. Insert per Bild 9 (Beilage).
  2. Insert into the computer.
  3. Connect with the linking cable.

The programming is the same as described under 4.3; the circuit corresponds to Bild 9.


[page 27]

The programming is the same as described under 4.3; the circuit corresponds to Bild 9.

4.7. ½ log 100 X

  1. Insert per Bild 10 (Beilage).
  2. Insert into the computer.
  3. Connect from the appropriate switch field of the computer.
  4. On the programming panel of the computer “X” switch field, connect the chosen switch (in the black field with white quantity markings) with the Sum Q switch.
  5. The “SM” book at the Sum Q of the inverter is set to the appropriate position.
  6. A further positive input magnitude at the “A” switch (on the Sum Q side of the inverter) is connected.
  7. The output of this inverter is connected to its own 10er-Summenpunkt (Buchse S) via a capacitor resistor (100 pF) via an inverter.

At the output of the first downstream inverter (lower SM) the function F(X1) is achieved, and at the output of the second downstream inverter (Sum S) the function F(X2) appears. Both functions can be added together so that the outputs of the downstream SM unit become a combined output quantity (Circuit diagram, Fig. 13). At every Server-Multiplier plug field one function slot is then always available.

  1. The negative input magnitude at the output of the inverter connects to the “B” switch position. 9–10. As 4.7.

At the output of the inverter the function achieves ½ log 100 X. The circuit for this function is accordingly Bild 11.

At the output of the inverter the function achieves + ½ log 100 X. The circuit for this function is the same as Bild 11.

4.8. Einzelne Funktion F(±X)

  1. Insert per Bild 11 (Beilage).
  2. Insert into the computer.
  3. Connect with the linking cable.

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  1. On the programming panel at the appropriate switch field of the computer, the “X” switch with the selected (switch in the black field with white quantity markings) “B” switch connects from the selected plug slot.
  2. A voltage-control command with a positive input magnitude at the “B” switch comes to the “A” switch.
  3. A further positive input magnitude X2 at the output of an inverter connects to it.
  4. This total magnitude is used as the Sub Bild “B” switch together with the lower book (book “B”) and connects to the negative Umlenkung (inversion).

At the output of the first downstream inverter (lower SM) the function F(X1) is achieved, and at the output of the second downstream inverter (Sum S) the function F(X2) appears. Both functions can be added together so that the outputs of the downstream SM unit become a combined output quantity (Circuit diagram, Fig. 13). At every Server-Multiplier plug field one function slot is then always available.

4.9. Einzelne Funktion F(−X)

  1. Insert per Bild 13 (Beilage).
  2. Insert into the computer.
  3. Connect with the load cable from the computer.

The programming is the same as described under 4.8; the circuit corresponds to Bild 13.