[sdiy] Knobs for Oberheim SEM-1A

Vladimir Pantelic vladoman at gmail.com
Mon May 26 12:46:53 CEST 2025


I recently spoke to a Eurorack manufacturer that uses SIFAM/SELCO style 
knobs, but he needed them with a pointer for a rotary switch.

he modeled the knob in CAD and has it now 3D resin printed, they look 
almost like the original and ended up even costing less.

I guess one could model the skirt part the same way and have it produced 
for relatively small money....


On 08.04.25 01:44, TERRY SHULTZ via Synth-diy wrote:
> Hi Folks,
> 
> Just got off the phone with Tom Oberheim and I quizzed Tome about where he
> Purchased the knobs for the SEM1-A for the TVS/FVS and 8VS synths.
> 
> The company is called ELMA Products and look into the Rotary Switch area on their web site.
> 
> Tom further mentioned that they no longer make the skirts for the knobs, which are collet type and not D or splined .
> 
> I hope that this helps the folks that send out a email thread on knobs.
> 
> I use Selco these days and I used them on E-mu products I was designing for Drumulator and Emulator 2.
> 
> Best regards to my audio friends
> 
> Terry
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