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How to Make A Telegraph Exploring the Magic of Electricity.

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Presentation on theme: "How to Make A Telegraph Exploring the Magic of Electricity."— Presentation transcript:

1 How to Make A Telegraph Exploring the Magic of Electricity

2 Miscellaneous Parts Alligator Clips Washers ¼” Hex Bolt Wood Screws Pan Head Screws Machine Bolt

3 Parts Enamel Coated Magnet Wire 20 gauge Bell Wire (solid) 18 gauge Sheet Metal Strap

4 Framework ¼” Dowel Rod Sounder Arm 7 ½” x ¾” x 5/8” Switch Block 2 ½” x 4 ½” x ¾”

5 Telegraph Frame 3 ¾” x 6 ¾” x ¾” 3 ¾” x 4 ½” x ¾” ¼” Hole 3 ¾” x ¾” x ¾” 2 ¼” x 2” x ¾” 8 - 1 ½’ wood screws 7/8” x 3 1/8” – cut out

6 6 volt lantern battery

7 Electrical Tape

8 STEP 1: Put large washer on hex bolt Making Electro Magnet

9 STEP 2: Wrap hex bolt with electrical tape Leave ½” unwrapped at bottom

10

11 STEP 3: Wind magnet wire around bolt

12

13 Keep windings neat, tight 5-6 layers of magnet wire

14 STEP 4: Sandpaper end of magnet wire (sand away ½” enamel)

15

16 STEP 5: Screw bolt in top of framework

17 Finished Electro magnet

18 Making Telegraph Switch

19 STEP 1: Cut two pieces of black bell wire, equal lengths

20 STEP 2: Strip wire ½”

21

22 STEP 3: Make a hook in wire

23

24 STEP 4: Fasten wire and strap metal to wood

25 STEP 5: Screw into place

26 STEP 6: Fasten bell wire at other end of switch block

27 STEP 7: Screw in place

28 Completed Telegraph Switch

29 Attaching alligator clip STEP 1: Insert bell wire into alligator clip

30 STEP 2: Wrap bell wire around screw

31 STEP 3: Tighten screw on alligator clip

32 STEP 4: Add alligator clips to both bell wires

33 Attaching Electro Magnet to Telegraph switch STEP 1: Fasten magnet wire, bell wire to framework

34 STEP 2: Screw in place

35 STEP 3: Fasten magnet wire, bell wire to framework

36 Completed wiring to telegraph switch

37 Completed Electro magnet wiring

38 Making Sounder Arm 7 ½” x ¾” x 5/8”

39 STEP 1: Screw in bolt

40 STEP 2: Insert sounder arm into framework

41 STEP 3: Insert dowel rod into framework

42 Completed telegraph sounder

43 Place top on telegraph sounder

44 Hinge top to telegraph sounder Hinge 1 ½ x 1 ½”

45 Leave 1/8” gap between electro magnet and bolt

46 Completed Telegraph


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