Hi there, I’m sorry for starting yet another topic on the super simple oscillator but I couldnt find the right answer to my problem. 
I builded 4 super simple oscillators. They all work seperately. But when I connect the outputs together the output gets verry low.
Should I use a mixer circuit to mix these oscillators? If so, any sugestions?
Yes, you will need a mixer. I suggest Sam’s simple mixer:
You could mix the outputs together using a few simple resistors and feed that signal into an amplifier.
Yes, passive mixers are a Thing.
The SSO has an output resistor, so in principle just tying those together should create a passive mixer, right?
Sam’s first drone with the SSO did just that.
Last year I was a little curious about those double floor potentiometres and bought a few for no reason. But it turned out, after some research that it could be a possibility for a volume knob, one layer controling the ins and the other the out. I am not sure it is wired correctly, but it works, except since I added 3 summed outputs of 4 total ins, the knobs then interact with other ins etc. But all in all it works, I will see if I can push it further. But I found it quite handy for a low budget mixer. Please don’t mock my front panel ( I am looking for someone who does eurorack panels still). So here are some photos, its my first diy test being posted, so looking forward for feedback! :
Hi everyone, I do also have issues with the mixer of the super simple oscillator (SSO).
I want to make a box with 8 SSO, thus I have to have a mixer. But, I have issues with it. Here is a basic SSO cell with the input stage of the mixer (100k + pot + C3).
I guess I managed to solve this. I had to switch mix pot and 100k and add the double inverter amplifier stage.
