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Noise Oscillator Build Document. V.5d - 9v - English
The Noise! Synthesizer is a CMOS IC based instrument.
The synth has 4 squarewave oscillators that modulate each other and go throught a clock divider.
After that, the separate divider outputs are mixed and shaped together.
Then the signal is routed through a pseudo ringmod.
Start with the Resistors:
The one 10R resistor has the color code: 'brown-black-black'.
It is used at the power input as a fuse.
Bend the legs of the resistor 90 degrees and place the 10R resistor at the R1 location on the PCB.
Solder the resistor and cut off the legs with a sidecutter.
The three 1K resistors have the color code: 'brown-black-red'.
These parts act as output protectors.
Place the resistors at R2, R3 and R4
Solder and cut the legs.
R5 to R8 are four 1M resistors.
R9 can be skipped, It is a voltage divider with R3, to reduce the volume of OUT2
Starve a modification option.
Look at the end of this document for more info!
Connect the two holes of Starve together to bypass this option.
Use a snipped-off leg of a resistor. Bend the leg in a U shape and solder.
If you skip this step, the module will receive no power!!
Diodes:
There are four zener diodes. These make sure that the CV input voltage cannot be higher than 9.1 volt.
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Summary of Contents for Reverselandfill Noise
- Page 1 Noise Oscillator Build Document. V.5d - 9v - English The Noise! Synthesizer is a CMOS IC based instrument. The synth has 4 squarewave oscillators that modulate each other and go throught a clock divider. After that, the separate divider outputs are mixed and shaped together.
- Page 2 Doides have a important orientation, marked with a black stripe. This stripe is white on the PCB. Place the four diodes in D1, D2, D3 and D4. IC sockets Take the tube or foam with the three IC sockets and the IC's. There is one with 16 pins and two with 14 pins! These IC-sockets are to make the placement (and possible removal) of the IC's easier.
- Page 3 Take the small piece of foam with the three IC's. CD4070 (XOR), CD4040 (clock divider) en CD4093 (quad NAND) The IC's are the heart of the noise synthesizer. The CD4093 makes the four oscillators, the CD4040 divides the pitch of the oscillators The CD4070 is a pseudo ringmodulator and gives OUTPUT2 a metalic character.
- Page 4 Patch some wires to Y1 as well. Y1 goes to OUT3. Listen to OUTPUT3! The Y1 patchbay goes directly to the OUT3. by patching to this output, you can make noise pitch changes and also route it as a random modulation output (use the large divisions) The X1_noisebay has 12 outputs.
- Page 5 To make the patchbay accessable , you can make a 'patchbay panel' Use the pincables or any other cool way (such as banana plugs, touch points, switches) to connect the X1_patchbay outputs to the Y1 and Y2_patchbay inputs. Have fun with your Noise! Synthesizer!!! :) Martijn Verhallen reverse.landfill@gmail.com...
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