1. CricketSat LP (Transmitter) Assembly Instructions This is the instruction slides for the assembly of a transmitter board. This is the board that will fly on the balloon. It would be a good idea to review soldering instructions before beginning.

2. Transmitter Parts List R2, 2.2M Ohm (red, red, green, gold) R3, 330k Ohm (orange, orange, yellow, gold) R4, 18k Ohm (brown, gray, orange, gold) R5, 33.2k Ohm (orange, orange, red, red, brown) R6, value depends on channel number. It will be the last blue resistor in your kit. R7, 33 Ohm (orange, orange, black, gold) R8, 680 Ohm (blue, gray, brown, gold) D2 and D3 Diodes, both are the same C5, C6, and C7 capacitors, all three are 0.1 micro Farad Switch 14 pin Timer IC Socket Red LED C1, C3, and C4, capacitors, are all 47 micro Farad 5 volt Regulator 2-pin Speaker Pins Transmitter Module 9 volt Battery Clip Wire 6.25 inch Antenna Wires (2) C2, 0.01 micro Farad capacitor R1, Thermistor 556 IC Timer Transmitter PC Board

3. Step 1 of 16 Install resistors R2, R3, & R4. Solder and clip leads. Resistors are not polarized so orientation is not important. R2, 2.2M Ohm (red, red, green, gold) R3, 330k Ohm (orange, orange, yellow, gold) R4, 18k Ohm (brown, gray, orange, gold)

4. Step 2 of 16 Install resistors R 5 & R6. Solder and clip leads. Resistors are not polarized so orientation is not important. R5, 33.2k Ohm (orange, orange, red, red, brown) R6, value depends on channel number. It will be the last blue resistor in your kit.

5. Step 3 of 16 Install resistors R7 & R8. Solder and clip leads. Resistors are not polarized so orientation is not important. R7, 33 Ohm (orange, orange, black, gold) R8, 680 Ohm (blue, gray, brown, gold)

6. Step 4 of 16 Insert diodes D2 & D3. Diodes are polarized. Install with white bands oriented as shown. Look at the PC board to see the direction of the white band. Solder and clip leads.

7. Step 5 of 16 Install capacitors C5, C6, & C7. These capacitors are not polarized. Orientation is not important. Solder and clip leads. All three are 0.1 micro Farad.

8. Step 6 of 16 Install switch and IC timer socket. Insert all 14 pins of the socket, notch is pointing up. Make sure all pins on the socket & switch go through the board before soldering. Socket will snap in to place. Do not clip wires. Notch

9. Step 7 of 16 Install red LED in D1. The LED is polarized, the long lead wire is positive. Look at the PC board for correct alignment. Install flush to board. Solder and clip leads.

10. Step 8 of 16 Install capacitors C1, C3, & C4. The capacitors are polarized. The side with the white band is negative. The positive lead is longer. Look at the board for +/- signs. Solder and clip leads. C1, C3, and C4, capacitors, are all 47 micro Farad White band

11. Step 9 of 16 Install the 5 volt regulator into U2. The regulator is polarized and should be installed with the flat side facing away from the switch. Do not push flat to the board, allow the regulator to stand up on the board. Solder and clip leads.

12. Step 10 of 16 Install 2 pin speaker jack. Insert with longer leads on top of the PC board and solder shorter leads on bottom of board. Do not clip leads. This step is optional since it is only needed if you plan to connect a speaker for testing purposes. The board will work without it.

13. Step 11 of 16 Install transmitter module in U3 with the metal can facing the outside. Solder and clip leads.

14. Step 12 of 16 Push 2” of battery clip wires down through the inner strain relief holes. The red lead goes through the hole near the B+ hole and the black lead goes through the inner hole near the B- hole. Push the bare ends of the wires back up and through the B+ & B- holes. Leave small loops and solder the bare ends on top of the PC board. Pull the wires tight to remove the loops.

15. Step 13 of 16 Insert bare end of two antenna wires into outer holes from under side. Solder on top of the PC board. Push free ends of wires up through inner holes and pull tight. Bend the wires to form 90 degrees for best results.

16. Step14 of 16 Install capacitor C2 flush to the PC board. This capacitor is not polarized, so orientation is not important. Insert in outer holes, leaving the inner holes unused. Solder and clip leads. C2, 0.01 micro Farad capacitor

17. Step 15 of 16 Install thermistor, R1. Solder and clip leads. The thermistor is not polarized, orientation is not important.

18. Step 16 of 16 Install the 556 timer chip. The pins are flared out, so you may need to bend them slightly inward. Make sure all pins enter properly into the socket. It should sit flush. Make sure the notch is facing up with the notch in the socket. Notch

19. Testing Slide the power switch to off. Attach a 9 volt battery. Slide power to on. Wait 30 secs for LED to blink. Connect a speaker from the receiver kit to the speaker jacks. (optional if you have a receiver that you can use to hear the signal with). You should hear a faint tone once every 20 – 30 secs. Remove the speaker. The speaker is not flown with the transmitter! Calibrate before flying.