Showing posts with label Useful Synth Circuits. Show all posts
Showing posts with label Useful Synth Circuits. Show all posts
Sunday, January 26, 2025
Oberheim SEM SUB-oscillator Mod
video upload by Eric Beam
Also see this post.
"I saw this SEM SUB-oscillator floating around the internets and had to give it a go. 5 stars would go again. Available here from @Lackan110f https://reverb.com/shop/peters-gear-g..."
via this listing
Note the Marion Systems logo on the board. As readers of the site likely know, Marion Systems was Tom Oberheim's follow-up company after Oberheim.
"SUB-oscillator module for the New Oberheim SEM Pro (2009). Installation is very simple, you just have to solder one wire to the +15V point and then attach three connectors.
The +15V point can be located in various places depending on if it is a Marion or Oberheim, and also what model it is. So a multimeter is recommended to verify +15V.
This will give you a -1 octave SUB-oscillator using the EXT-IN knob #1, or a -2 octave SUB-oscillator using the EXT-IN knob #2.
You can also mount it so that you keep EXT-IN on #1 and have SUB -1 OCT on #2 (SUB -2 OCT is then omitted). Se illustration.
Does NOT work in an older vintage SEM (1974-1979) due to different connectors. (the video shows a vintage SEM, but this product is for the New TOM SEM Pro 2009)"
Saturday, November 16, 2024
SUB Oscillator for the Oberheim SEM Module
video upload by Lackan
"This is a demo of a SUB Oscillator for the Oberheim SEM Module. It is very easy to install using the Molex connectors, thus being totally harm free to the Oberheim SEM. Available at www.usefulsynthcircuits.com"
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© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
MATRIXSYNTH is supported by affiliate links that use cookies to track clickthroughs and sales. See the privacy policy for details.
MATRIXSYNTH - EVERYTHING SYNTH