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paper_bits:pb103_sinevco [2016/10/24 11:13] admin [Manual] |
paper_bits:pb103_sinevco [2017/04/10 23:12] admin [Parts] |
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==== Schematic ==== | ==== Schematic ==== | ||
- | {{:paper_bits:pb103_sinevco_schematic.jpg?300|}}\\ | + | {{:paper_bits:pb103_sinevco_schematic2.jpg?400|}}\\ |
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==== Paper-PCB ==== | ==== Paper-PCB ==== | ||
- | {{:paper_bits:pb103_sine_vco_11.jpg?400|}}\\ | + | {{:paper_bits:pb103_sine_vco_32.jpg?400|}}\\ |
- | {{ :paper_bits:pb103_sine_vco_11.ai.zip |}}\\ | + | {{ :paper_bits:pb103_sine_vco_32.ai.zip |}}\\ |
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* 1x 470 Ohm | * 1x 470 Ohm | ||
* 2x 1 kOhm | * 2x 1 kOhm | ||
- | * 6x 10 kOhm | + | * 2x 4.7 kOhm |
+ | * 1x 9.1 kOhm | ||
+ | * 2x 10 kOhm | ||
* 6x 47 kOhm | * 6x 47 kOhm | ||
* 3x 100 kOhm | * 3x 100 kOhm | ||
- | * 1x 9,1 kOhm | ||
- | * 1x 4,7 kOhm | ||
* **Capacitors:** | * **Capacitors:** | ||
* 2x 100 nF (foil) | * 2x 100 nF (foil) | ||
* 1x 10 nF (foil) | * 1x 10 nF (foil) | ||
+ | * 2x 10µF | ||
* **Diodes:** | * **Diodes:** | ||
- | * 1x 1N4148 | + | * 2x 1N4148 |
- | * **Op-Amps **: | + | * **Op-Amps **: |
- | * LM 358 | + | * 2 x LM 358 |
- | * LM 324 | + | |
* **Mechanical:** | * **Mechanical:** | ||
- | * 1x 14 pin IC socket | + | * 2x 8 pin IC socket |
- | * 1x 8 pin IC socket | + | * 1x pin strip 1x12 |
- | * 1x Pin-Strip 1x15 | + | * 2x pin header, female 90° 1x3, 1x2 |
- | * 1x Right Angle Pin-Strip / Female-Socket Header 1x5 | + | * 2x pin header, male 90° 1x3, 1x2 |
- | * 1x Right Angle Pin-Strip 0,1 /Male 1x5 | + | |
* 3x jumpers | * 3x jumpers | ||
* **Potentiometers:** | * **Potentiometers:** | ||
- | * 2x 100k Trim Potentiometer | + | * 2x 100k trim potentiometer |
- | * 1x 10k Trim Potentiometer | + | * 1x 10k trim potentiometer |
* 1x 100k | * 1x 100k | ||
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==== Manual ==== | ==== Manual ==== | ||
- | **Step 1 Connecting to power:**\\ | + | **Step 1 Connecting to Power:**\\ |
- | Once you've finished soldering all the parts into the PCB board plug it to power while touching the 2 chips. If any of the chips is getting hot unplug immediately and check the board for any mistakes (might be that the chip is inserted in the other way around). | + | Once you've finished soldering all parts into the Paper Circuit Board power it on while touching the two chips. If any of the chips is getting hot immediately unplug it and check the board for any mistakes (might be the chip is inserted the wrong way). |
**Step 2 Checking the Oscillator:**\\ | **Step 2 Checking the Oscillator:**\\ | ||
- | Connect the saw-tooth, square output of the oscillator to the speakers by using a crocodile clip and check if its working. | + | Connect the triangle or the square wave output of the oscillator to the speakers by using a crocodile clip. Check if its working. |
- | **Step 3 Using Oscilloscope:**\\ | + | **Step 3 Using the Oscilloscope:**\\ |
- | Connect Probe 1 from the Oscilloscope to the saw-tooth pin (you should see already some square waves on your oscilloscope). | + | Connect your first probe of the oscilloscope to the triangle wave pin - you should see the waves on your oscilloscope. |
- | Next connect Probe 2 to connector Nr.4. Now you should see 2 different waves its time to shape the second wave into a beautiful sinus wave. | + | Than connect the second probe to connector Nr. 4. Now you should see two different waves, its time to shape the second one into a beautiful sinus wave. |
**Step 4 Wave Shaping:**\\ | **Step 4 Wave Shaping:**\\ | ||
- | Connect the speakers to pin connector 4. (using that crocodile clip). | + | Connect your speakers to pin connector Nr. 1, too. (use a crocodile clip). |
- | Now start trimming the Potentiometer that is marked as 1 while checking the Oscilloscope and comparing the second wave with the first. | + | Now start trimming the potentiometer marked as Nr. 2 while checking the oscilloscope and comparing the second wave with the first. |
- | Stop when you see or hear a perfect rounded sinus wave. | + | Stop when you see and hear a perfect rounded sinus wave. |
- | Ok now we have our sinus wave but as you might notice the signal is too week, it's time to amplify it. | + | Ok, now we have our sinus wave but as you might notice the signal is week, it's time to amplify it. |
**Step 5 Amplification:**\\ | **Step 5 Amplification:**\\ | ||
- | Take the CV output to the speaker (watch out so that the jumpers are in the right position). Do the same in case of the oscilloscope probe. | + | Connect your speakers to the CV output (watch out if the jumpers are at the right position). Do the same with the oscilloscope probe. |
If you don't hear or see anything it means that the signal might have been lost, but don't worry that's what we will do next.\\ | If you don't hear or see anything it means that the signal might have been lost, but don't worry that's what we will do next.\\ | ||
- | Before you start trimming the other two trim potentiometers, it is important to know that you want to get you're wave as much amplified as possible without getting to a saturation level on you're op-amp. | + | Before you start trimming the trim potentiometer, it is important to know that you want to get you're wave as much amplified as possible without getting to the saturation level of your op-amp. |
- | When that happens the sound will get distorted and you will see on you're Oscilloscope that you're wave is reaching a critical level. | + | When that happens the sound gets distorted and you will see on you're oscilloscope that your wave is reaching a critical level (it's getting flat). |
- | Another thing to know is that you're wave has a Pick to Pick range that is limited by the Op-Amps capacities and changing depending on the frequency. You want to get the best out of it (the highest voltage without reaching to over saturation) and that's when you have to check you're wave in all frequencies. In the lower ones for instance the waves amplitude is higher and thats the best situation for tuning you're wave and that is because here the wave will tend to get out of range (oversaturated) much more easier.\\ | + | Another thing to know is that you're wave has a peak to peak range that is limited by the op-amps capacities and changes depending on the frequency. You want to get the best out of it (the highest possible voltage without reaching the saturation) and that's why you have to check the wave over all frequencies. In the lower ones for instance the waves amplitude is higher and that's the best for tuning you're wave because here the wave will tend to get out of range (oversaturated) much easier than in higher frequencies.\\ |
- | Now you can start trimming the 2 Trim Potentiometers. Poti marked as 2 controls the level of the wave. Poti marked as 3 controls the amplification of the wave. You will trim them simultaneously in the lowest audible frequency until you're wave will reach a similar pick to pick range as the saw-tooth wave. | + | Now you can start trimming the trim potentiometer. The one marked as Nr. 3 controls the amplification of the wave. You will trim it until you're wave will reach a similar peak to peak range as the triangle wave.\\ |
- | Once you're Sinus Wave is amplified you are ready to go, plug and play. | + | |
+ | **Step 6 Offset:**\\ | ||
+ | The trim potentiometer Nr 4 is for adjusting the offset of the frequents control. To avoid popping one wants to have at the lowerst input still a nice sine wave.\\ | ||
+ | |||
+ | Once your sine wave is shaped, amplified and has a nice offset you are ready to go, plug and play. | ||
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- | ~~DISCUSSION~~ | ||