Jeff009 Posted October 17, 2012 Report Share Posted October 17, 2012 I'm kinda new to the DIY MIDI project world, and I'm slowly getting to know the parts and categories that are available. I've already had some exposure to potentiometers, (endless) rotary encoders, and lately I've been dabbling with mechanical encoders. I came across a posting on synthopia today about a device called a fourMulator from Vermona (http://www.synthtopia.com/content/2012/10/13/vermona-fourmulator-quad-digital-lfo-for-eurorack-modular-synthesizers-sneak-preview/). I noticed that the knob which selects the wave has 6 selections/settings, but the range of the knob selection is only 180 degrees or so (so only a portion of the full range of the knob is used). I didn't know anything like this existed. I've been experimenting with mechanical encoders lately, but they turn 360 degrees, and each value is evenly divided. What kind of device is this? How does it work? Thanks, Jeff Quote Link to comment Share on other sites More sharing options...
kHz-tone Posted October 17, 2012 Report Share Posted October 17, 2012 It should be a "Rotary Swich" like this one. Quote Link to comment Share on other sites More sharing options...
jojjelito Posted October 17, 2012 Report Share Posted October 17, 2012 Exactly! There are specialized rotary switches with a fixed number of stops, then we have things like the Lorlin switches where you can set the number of stops by moving an internal stop part. The switch may be 1Px12, 2Px6 or 3Px4 and you can set it to the number of stops desired. Quote Link to comment Share on other sites More sharing options...
NorthernLightX Posted October 17, 2012 Report Share Posted October 17, 2012 The switch may be 1Px12, 2Px6 or 3Px4 4Px3 (4P3T) is also an available configuration with the Lorlin type Rotary switches :flowers: Quote Link to comment Share on other sites More sharing options...
Imp Posted October 17, 2012 Report Share Posted October 17, 2012 It could also be a Gray-Encoder, which is a special rotary switch that ouputs binary numbers in gray code. It's explained here Quote Link to comment Share on other sites More sharing options...
Jeff009 Posted October 18, 2012 Author Report Share Posted October 18, 2012 It should be a "Rotary Swich" like this one. Cool! I didn't know something like that existed. The specs on the site say it has 6 positions, and angle of throw is 30 degrees (and angle of throw means the angle between each notch, right? So it moves 180 degrees). Thanks! Jeff Quote Link to comment Share on other sites More sharing options...
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