Jürgen Haible
Polymoog® Resonator Panels

This 2U panel design is an adaptation of the layout posted by Will (and Bill) on ModularSynthPanels.   Note that different size potentiometer bodies will require the design to be modified to provide 0.5" top mounting rail clearance.

These design are for Piher 16 mm carbon potentiometers.  I have used these potentiometers on several modules and they work reasonably well.  They are all plastic construction with cut-to-fit shafts and short bushings.

Control Mouser P/N Description
10K linear potentiometer 531-PC16SC-10K Piher 16 mm 10K linear
Mouser does not carry a Piher 10K log potentiometer
A 12K resistor in parallel with a 100K linear control simulates a log function
10K log potentiometer 531-PC16SC-100K ||12K Piher 16 mm 100K linear
10K dual linear potentiometer 531-PC16DC-10K Piher 16 mm 10K dual
1 pole 4 position rotary switch 105-13571 30° 2-12 position shorting

 

This  graph  shows  the  resulting log function
using a 100K linear potentiometer in parallel
with a 12K resistor. Total resistance = 10K71

 

 

Graph courtesy of Chris List web site java applet
http://www.mindspring.com/~clist/PotGraph.html

Piher 16 mm Polymoog® Resonator FrontPanelExpress design file  Unverified

 

 

This design is for Alpha 24 mm carbon potentiometers where the top row is lowered to accommodate the larger body size.

Control Mouser P/N Description
10K linear potentiometer 31VA401-F Alpha 24 mm 10K linear
10K log potentiometer 31VJ401-F Alpha 24 mm 10K log
10K dual linear potentiometer 31VW401-F Alpha 24 mm 10K dual
1 pole 4 position rotary switch 105-13571 30° 2-12 position shorting

 

Alpha 24 mm Polymoog® Resonator FrontPanelExpress design file  Unverified

 

 

These two designs feature a single Mix control instead of a Dry output level and a Resonator output level.

         

Left Piher 16 mm Polymoog® Resonator FrontPanelExpress design file  Unverified

Right Piher 16 mm Polymoog® Resonator FrontPanelExpress design file  Unverified

 

 

Here's a concept panel based on Ken Elhardt's Electro-Music posting.

9 Out Piher 16 mm Polymoog® Resonator FrontPanelExpress design file  Unverified

 

 

These next two designs using BI Technologies and Vishay potentiometers (e.g. small body).  This allow closer spacing of the top gain controls to the edge of the panel.  The left panel is a rectangular design with compressed vertical space above where a second row of jacks would be (similar spacing to my Varislope panel.)  The right panel design emphasizes the diagonal aspect by moving the Mix and the mode switch to the bottom.

Control Source Description
10K linear potentiometer Oakley Sound BI Technologies
10K log potentiometer Oakley Sound BI Technologies
10K dual linear potentiometer Oakley Sound Vishay 149.DXG56S103SP
1 pole 4 position rotary switch Mouser 105-13571 30° 2-12 position shorting

         

Left Vishay Polymoog® Resonator FrontPanelDesign file

Right Visha Polymoog® Resonator FrontPanelDesign file

 

 

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