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| Getting Started | Preparations | DL Experiments | RTL Experiments | DTL Experiments | TTL Experiments | Multivibrators | Basic Clock Sources | Counter and Display |
| Power Supply for Logic Circuits | Logic Indicators | Digital Inputs | Verifying the Test Setup |

Before we can experiment with various circuits, we will need to have a means of setting the circuits up and seeing how they behave. This means some sort of test bed, complete with a power supply, signal inputs, and output indicators. Of course, commercial test beds are available at a price, and are preferred for serious, long-term use. However, for experimental use, we can build the test bed as a sort of demonstration circuit in its own right. This is perfectly acceptable, so long as appropriate safety precautions are taken.

Power Supply for Logic Circuits

Any electronic circuit needs to be powered. Here you will build a simple but entirely practical +5 volt power supply, suitable for demonstrating a wide variety of digital circuits.

Logic Indicators

When working with digital circuits, we often need some sort of indicator to simply distinguish between the two binary logic states.

Digital Inputs

Just as we need digital state indicators to monitor output states, we often need digital logic input signals to control circuits being tested or demonstrated.

Verifying the Test Setup

Make sure that your digital test setup matches the construction of the original system.

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