English translation
Vogel Analog Computer — Circuit Diagrams (Schaltplan)
This file translates the original German-language schematic document (2 pages).
Page 1 — Computing Element Circuits
The first page presents schematics for the following analog computer building blocks:
Multiplexer A multiplexer circuit diagram is shown in the upper-left area.
Inverting Amplifier (Ophase Verstärker / Inverter) An inverting unity-gain amplifier (sign changer) circuit.
Diode Function Generator for the Sine Function (Diodenfunktionsgeber für die Sinus-Funktion) A piecewise-linear diode network circuit for approximating the sine function, shown in the upper-right area.
Summers 1, 2, 3 (Summierer 1, 2, 3) Three summing amplifier circuits using op-amps, used to add weighted analog signals.
Integrators 1, 2, 3 (Integratoren 1, 2, 3) Three integrator circuits using op-amps with capacitive feedback, the core computing elements of an analog computer.
Page 2 — Support / Auxiliary Circuits
DC/DC Converter (DC/DC-Wandler) Power supply converter using a DC1 TEN5-1223 module, providing ±15 V and ±5 V rails from a 9 V input.
Triangle Wave Generator (Dreieckspannungs-Generator) Waveform generator circuit using IC8 LF353 op-amp producing a triangular voltage waveform.
Reference Voltages (Referenzspannungen) Reference voltage circuit using IC13 REF01 precision reference and IC14 LF353 op-amp to supply stable reference levels.
Coefficient Potentiometer (Koeffizienten-Potentiometer) Passive attenuator/potentiometer network for setting analog computing coefficients.
Overload Indicator (Übersteuerungs-Anzeige) Indicator circuit (using IC12 LM1458) that detects and displays amplifier overload/saturation conditions.
Polarity Indicator (Polaritäts-Anzeige) Circuit using IC11 LF353 to display the polarity (sign) of a signal using LEDs.
Rectifier for Display Instrument (Gleichrichter für Anzeige-Instrument) Precision rectifier using IC10 LF353 and IC11 LF353 to drive an analog meter display instrument.
Address Selector Switch (Adress-Wahlschalter) Switch matrix for selecting which computing channel/address is monitored or displayed.
[Translation covers all 2 pages of the original document.]