Micronoise pro: Difference between revisions
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* C_A 47n | * C_A 47n | ||
* 4 Potentiometers 500 or 100 kOhm (Alps PCB mounted) | * 4 Potentiometers 500 or 100 kOhm (Alps PCB mounted) unsed for A-D tune | ||
* 2 Potentiometers 10 kOhm (Alps PCB mounted) | * 2 Potentiometers 10 kOhm (Alps PCB mounted) used for power and CV amount | ||
* | * 1* Transistor (e.g. BC548) | ||
* 3* switches (PCB | * 3* switches (MULTICOMP SWITCH, PCB SPDT VERT on-on) | ||
* 3* Jack connector (lumberg 1502 03 PCB mounted) | * 3* Jack connector (lumberg 1502 03 PCB mounted) | ||
* 1* LED(for optocoupler) | * 1* LED(for optocoupler) | ||
Line 29: | Line 29: | ||
= Schematics = | = Schematics = | ||
All 4 NAND Gates are connected in series from C to B to A to D. The values of the according capasitors | All 4 NAND Gates are connected in series from C to B to A to D. The values of the according capasitors are decreasing resulting in a higher frequency from the first to the last gate. | ||
The A/B switch connects the A or B | The A/B switch connects the A or B NAND gate to the A/B Out-Jack. The B-IN switch connects supply voltage or the C NAND gate to the B NAND gate. The CV-ON switch turns the control voltage on/off. a transistor is used as a LED driver for the optocoupler. | ||
[[File: | [[File:micronoise_pro.png|500px]] | ||
= Board = | = Board = | ||
[[File: | [[File:micronoise_board.jpg|400px]] | ||
Mask (bottom): | |||
[[File:Micronoise_pro_pcb.pdf]] | |||
Parts (top): | |||
[[File:Micronoise_pro_parts.pdf]] | |||
EAGLE Files: | |||
[[File:Micronoise_pro_eagle.zip]] | |||
= Built Devices = | |||
[[File:micronoise_caseXT.jpg|400px]] | |||
Micronoise pro in a case with additional 4 switches for routing signals of the NAND gates to the control voltage in. There is also a DIP socket for chosing the NAND gate that is controlled by the control voltage. | |||
[[File:micronoise_casecut.jpg|400px]] | |||
[[File: | |||
For this micronoise pro a laser cuted plexi front plate was used. The pads of the NAND gates output were connected to 4 LED with different colors to get a visual feedback of the sound. | |||
= Demo Video = | = Demo Video = | ||
{{#widget:Youtube|id=KNHleiE-QME}} |
Revision as of 16:02, 8 August 2014
Concept
This circuit can create more complex noises than the original one since it uses all 4 NAND Gates of the chip. Depending on the used values of the parts it can produce metalic spectra or polyrhythmic beats. A optocoupler is used to control one of the NAND gates with a control voltage.
Parts
- 1* 4093 IC
resistors (R3- R6 are just bridges you can also use wires, for one of them no resistors is used but a connection to the optocoupler is made)
- R1 470
- R2 8.2k
- R3 - R6 10
- R7 1k
capacitors (use different values for other frequency ranges)
- C_A 100n
- C_B 1u
- C_C 4.7u
- C_A 47n
- 4 Potentiometers 500 or 100 kOhm (Alps PCB mounted) unsed for A-D tune
- 2 Potentiometers 10 kOhm (Alps PCB mounted) used for power and CV amount
- 1* Transistor (e.g. BC548)
- 3* switches (MULTICOMP SWITCH, PCB SPDT VERT on-on)
- 3* Jack connector (lumberg 1502 03 PCB mounted)
- 1* LED(for optocoupler)
- 1* LDR(for optocoupler)
- 1* piece of heat shrink tube(for optocoupler)
- 1* Battery Clip & Battery
Schematics
All 4 NAND Gates are connected in series from C to B to A to D. The values of the according capasitors are decreasing resulting in a higher frequency from the first to the last gate. The A/B switch connects the A or B NAND gate to the A/B Out-Jack. The B-IN switch connects supply voltage or the C NAND gate to the B NAND gate. The CV-ON switch turns the control voltage on/off. a transistor is used as a LED driver for the optocoupler.
Board
Mask (bottom): File:Micronoise pro pcb.pdf
Parts (top): File:Micronoise pro parts.pdf
EAGLE Files: File:Micronoise pro eagle.zip
Built Devices
Micronoise pro in a case with additional 4 switches for routing signals of the NAND gates to the control voltage in. There is also a DIP socket for chosing the NAND gate that is controlled by the control voltage.
For this micronoise pro a laser cuted plexi front plate was used. The pads of the NAND gates output were connected to 4 LED with different colors to get a visual feedback of the sound.
Demo Video
{{#widget:Youtube|id=KNHleiE-QME}}