Hi everybody !!
Well, I recently made the famous LM358-based VCO as in this article : https://www.allaboutcircuits.com/projects/diy-synth-series-vco/
Everything seems to work fine except those buffers which I can't get to work at all and I just can't understand why ...
I've already tried putting a 20 ohm load between GND and Buffer's LM358's 1IN+, which resulted as a signal coming from 1OUT (I was quite satisfied) BUT It was still not buffering well : things made after that buffer (Low pass filter, VCA) are still affecting my VCO's pitch...
I didn't put those caps at the LM358s Vcc pins and I'm using a 500mA 5V from an Arduino UNO as voltage source
Any ideas ??
Well, I recently made the famous LM358-based VCO as in this article : https://www.allaboutcircuits.com/projects/diy-synth-series-vco/
Everything seems to work fine except those buffers which I can't get to work at all and I just can't understand why ...
I've already tried putting a 20 ohm load between GND and Buffer's LM358's 1IN+, which resulted as a signal coming from 1OUT (I was quite satisfied) BUT It was still not buffering well : things made after that buffer (Low pass filter, VCA) are still affecting my VCO's pitch...
I didn't put those caps at the LM358s Vcc pins and I'm using a 500mA 5V from an Arduino UNO as voltage source
Any ideas ??