Verifying the Digital Test Setup

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Direct Links to Other Experiments Pages:
Getting Started:	[Breadboard Sockets] [Experimental Components] [Handling Components] [Sorting Components] [Test Instruments] [Power Supplies]
Preparations — Digital Circuits:	[Power Supply for Logic Circuits] [Logic Indicators] [Digital Inputs] [Verifying the Test Setup]
Diode Logic (DL) Experiments:	[2-input OR Gate] [2-input AND Gate] [2, 2-input AND-OR Gate] [2, 2-input OR-AND Gate]
RTL Experiments:	[RTL Inverter] [4-input RTL NOR Gate] [4-input RTL OR Gate]
DTL Experiments:	[DTL Inverter] [3-input DTL NAND Gate] [2-input DTL NOR Gate] [2, 2-input DTL AND-OR-Invert Gate]
TTL Experiments:	[TTL Inverter] [2-input TTL NOR Gate]
Multivibrators:	[Bistable Multivibrator] [Bistable Multivibrator with NOR Inputs] [Monostable Multivibrator] [Astable Multivibrator] [Schmitt Trigger]
Basic Clock Sources:	[Line Clock] [One Second Line Clock] [Manual Pulse Generator]
Counter and Display:	[The 4029 CMOS Counter] [The Bicolor LED] [The Seven-Segment LED] [The Seven-Segment LED Driver] [Decimal Counter with Display]

Verifying the Digital Test Setup

Now that you have constructed the logic power supply, logic indicators, and digital input circuitry, the left half of your breadboard socket is pretty full. To check your layout, compare it with the figure below. The power supply busses are indicated, along with the connection points for the digital inputs and logic indicators. You'll be using these connections for all of your experiments with digital circuits.

The breadboard socket with testing circuits installed.

One circuit we will need later is a clock circuit. There are of course many ways to accomplish this, but an easy one for testing purposes is to use the power transformer secondary winding as a basic source. Such a circuit will actually fit in the empty columns between the LED indicator input resistors. We'll add that circuit when we reach experiments that will require it.

At this point, you are ready to begin performing your experiments. For any group of experiments, be sure to perform them in the order listed at the top of the page, since some experiments build up circuits started in a preceding experiment. The link given at the bottom of each experimental page will always take you to the next experiment in the sequence.

Your next experiment introduces Diode Logic