Adding sync to an LFO

[Dud]

@zorch

I have the feeling I’m going to need to pick up an oscilloscope. I have a real problem visualizing the way a transistor effects a circuit

this series of video is very well done with a comparison with water very easy to understand
maybe the last one for power supply

DIY Synth (electronic video for beginners) - Moritz Klein

DIY SYNTH VCO Part 2: How to control an oscillator with a voltage [DIY VCO Part 2: The simplest exponential converter]