Some Transistors creating a saw tooth wave enabling a very simple organ which you can play.
- Status: Complete
- Difficulty: 2/5
| Quantity | Name | Description | Signing/Colorcode |
|---|---|---|---|
| 1 | BT1 | 9V battery connector | |
| 1 | C1 | 22nF capacitor | 223 |
| 1 | D1 | green 5mm LED | |
| 1 | LS1 | 8-100 Ohm speaker* | |
| 3 | Q1-Q3 | BC547C NPN transistor | |
| 1 | Q4 | BC557C PNP transistor | |
| 4 | R1, RK1-RK3 | 3.3k Ohm resistor 1% | orange-orange-black-brown-brown |
| 1 | R2 | 100 Ohm resistor 1% | brown-black-black-black-brown |
| 1 | R3 | 22k Ohm resistor 1% | red-red-black-red-brown |
| 1 | R4 | 220k Ohm resistor 1% | red-red-black-orange-brown |
| 1 | R5 | 470k Ohm resistor 1% | yellow-violet-black-orange-brown |
| 1 | R6* | 82 Ohm resistor 1% | grey-red-black-gold-brown |
| 1 | RK4 | 3k Ohm resistor 1% | orange-black-black-brown-brown |
| 4 | RK5-RK8 | 2.7k Ohm resistor 1% | red-violet-black-brown-brown |
| 2 | RK9,RK10 | 2.2k Ohm resistor 1% | red-red-black-brown-brown |
| 1 | RK11 | 2k Ohm resistor 1% | red-black-black-brown-brown |
| 1 | RK12 | 1.2k Ohm resistor 1% | brown-red-black-brown-brown |
| 1 | RV6 | 25k Ohm potentiometer | |
| 1 | SW1 | push button | |
| 1 | wire flexible | ~30cm flexible wire | |
| 1 | wire stiff | ~3cm stiff wire | |
| 1 | PCB |
*You have to adjust R6 for the Speaker. 82 Ohm suits for 8 Ohm to 50 Ohm speaker. A 100 Ohm speaker needs 0 Ohm.
You can find the manual and pictures of every step here: https://github.com/Binary-Kitchen/SolderingTutorial
- Board: CC-BY-SA 4.0 - Timo Schindler
- Idea and scheme: CC-BY-SA 4.0 - Elektronikmuseum Tettnang