Analog Computing and Control Systems Laboratory, San Francisco State College (Alternate View)

The Machines with Patch Panels and Dials (Right Side)

• These are analog computing modules—early simulation tools used before digital computers became practical.

• You can see:

  • Patch cords connecting various terminals (for programming circuit logic or system equations)

  • Rotary dials for setting reference voltages or coefficients

  • Meters and knobs to observe behavior/output

• These likely simulate:

  • Differential equations

  • Control feedback loops

  • Mechanical system dynamics (like in flight or robotics)

The CRT Monitor and Front Console (Left-Center)

• This likely served as a visual output station or oscilloscope-style monitor for plotting data from simulations.

• It may also display output from:

  • Simulated sensors

  • Position tracking

  • Electrical signal stability

The Large Black Panel in Foreground (Left)

• Appears to be a centralized control and monitoring interface.

• The cluster of analog meters suggests:

  • Voltage levels

  • Input/output monitoring

  • Signal diagnostics across multiple simulation modules

The Smaller Box with Switches (Middle-Lower)

• Likely a signal router or amplifier box, used to distribute or manipulate voltages/signals among modules.

The Spools Below the Desk

• Spools of wire or cable for patching or replacing connections—typical in hands-on lab environments.

• Also seen in computer machine shops and DIY engineering stations.

Likely Purpose of This Setup:

       A control systems education and research bench, used for modeling and testing dynamic systems like:

• Aircraft or spacecraft controls

• Hydraulic systems

• Mechanical feedback loops

• Early robotics

This might have been used in conjunction with:

• The flight simulator components in some images in this collection.

• Or other applied physics/human factors experiments

Credits: 

Some technical descriptions and historical interpretations were developed with the assistance of ChatGPT, an AI language model by OpenAI.