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Projecttitel: Juergen Haible Living

VCO

VCOs in MOTM

Status: 
Status
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planning

progress

Startdate: Septmber 2014

Duedate: December

2014

20156

Manufacture link: check the legacy page: http://www.jhaible.info/wsdindex.html

  

check the legacy page: http://www.jhaible.info/wsdindex.html

 

Build thread on muffwiggler: for Eurorack pcb version

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http://www.baud-rate.com/blog/

further build thread:

http://www.reredredsynth.com/ladbrokeGroveVCOarray-implmt.htm

 

known Issues for Eurorack pcb version from muffwiggler:

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BOM Core PCB:

Living VCO Core BoM.pdf

 

BOM Driver PCB:

Living-VCO-Driver-BoM-v1.1.pdf

 

 

10K Poti for Frontpanel with vernier dials http://www.reichelt.de/534-10K/3/index.html?&ACTION=3&LA=446&ARTICLE=2543&artnr=534-10K&SEARCH=+53+4-10k

BOM Driver PCB:

Living-VCO-Driver-BoM-v1.1.pdf

 

The calibration can be found here:
http://www.jhaible.com/living_vcos/jh_living_vcos.html   -> link broken

check the legacy page: http://www.jhaible.info/wsdindex.htmlWiring:

View file
nameliving_vcos_wiring_opt1.pdf
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View file
nameliving_vcos_wiring_opt2.pdf
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View file
nameliving_vcos_wiring_opt3.pdf
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Calibration

Calibration is quite similar to what you have on other VCOs.
S - Scale. Here you adjust the 1V/Oct tracking. Apply a CV from your Keyboard or Midi->CV Converter. Connect a guitar tuner or frequency counter to the VCO output and adjust "S" until 1 octave on the keyboard is exactly 1 octave of VCO frequency.
F - Frequency. Here you can adjust the absolute frequency (not the scale). You can set it to something like 16Hz (or whatever else you prefer) for the ccw end position of the 10-Turn front panel "Frequency" control.
H - High frequency tracking. Honestly: i didn't even adjust this in my prototype - I just left it in mid position. If you need to, you can fine tune the octave tracking for higher frequencies here.
PW1(2)(3)Adj - Pulse width adjust. With the front panel Pulse Width knob in 12 o'clock position, adjust the trimmer for 50% pulse width.


Schematics:

View file
nameliving_vcos_sch_4of4.pdf
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View file
nameliving_vcos_sch_2of4.pdf
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View file
nameliving_vcos_sch_3of4.pdf
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View file
nameliving_vcos_sch_1of4.pdf
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Build notice:

add 3 Amps for usage with the Panel with separeted Puls and saw output.


Waveshaper adds SIN, TRI:

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PDF
nameliving_vco_waveshaper_stripboard_211.pdf









 


Frontpanel:


JHLivingVCO1.fpd in MOTMwith RED circles (shown on picture)

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keep Attention on the SQUARE output.. delete it, if you dont have it.

thats what i build:

5U_LVCO_DSL-MAN.fpd

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Gallery:


Gallery (Deprecated)

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