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Electronics Merit Badge

posted Mar 6, 2015, 7:34 AM by Troop Elgin   [ updated Sep 6, 2016, 6:34 AM by Greg Ehmann ]
Welcome to the Electronics merit badge information page. During this merit badge at the March 2015 camp out we will:
  • Explore the function and symbols of electronic parts. 
  • Diagram, analyze, build and improve an electronic control circuit. 
  • Learn how to solder various parts.
  • Use test equipment: multi-meter, oscilloscope and logic analyzer.
  • Construct a computer and game controller.
When complete we should have an electronic circuit that mimics a die, a functioning computer system and game controller. This should allow us to hold a classic video game tournament after dinner on Saturday night with such titles as PacMan, Defender, Centipede and many more.


Tasks to do 

2015-03 Electronics

  1. Read through the BSA Electronics pamphlet.
  2. Get a blue card from Mr McCowan
  3. Req 2a, see the attached PDF below for a copy of the schematic.
  4. Req 4b, Describe how a number system and logic gates make digital design possible. See pages 60-63.
  5. Req 4, design and build a circuit to properly count 0-5 and could be used as the die counter in Req 2. Using  the parts CD4024, CD4049, CD4001, CD4011 attached below. I can provide the parts and breadboard. Optionally you can add in the LEDs. 


Example of controller



Electronics merit badge requirements

1. Describe the safety precautions you must exercise when using, building, altering, or repairing electronic devices.
2. Do the following:
a. Draw a simple schematic diagram. It must show resistors, capacitors, and transistors or integrated circuits, Use the correct symbols. Label all parts.
b. Tell the purpose of each part.
3. Do the following:
a. Show the right way to solder and desolder.
b. Show how to avoid heat damage to electronic components.
c. Tell about the function of a printed circuit board. Tell what precautions should be observed when soldering printed circuit boards.
4. Discuss each of the following with your merit badge counselor, and then choose ONE of the following and build a circuit to show the techniques used:
a. Tell how you can use electronics for a control purpose, and then build a control device circuit.
b. Tell about the basic principles of digital techniques, and then build a digital circuit. Show how to change three decimal numbers into binary numbers, and three binary numbers into decimal numbers.
c. Tell about three audio applications of electronics, and then build an audio circuit.
Show how to read the schematic diagram of the project you choose and, to the best of your ability, explain to your counselor how the circuit you built operates.
5. Do the following:
a. Show how to solve a simple problem involving current, voltage, and resistance using Ohm's law.
b. Tell about the need for and the use of test equipment in electronics. Name three types of test equipment. Tell how they operate.
6. Find out about three career opportunities in electronics that interest you. Discuss with and explain to your counselor what training and education are needed for each position.


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