DIY VCO Part 3: Tuning your VCO (and making sure it stays in tune)
Автор: Moritz Klein
Загружено: 2020-07-24
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In this series, I'm taking a detailed look at how to build an analog VCO from scratch, using just a handful of cheap components. It's the basis for any synthesizer. To keep it as beginner-friendly as possible, I'm explaining what all the components do in detail.
This third part improves upon the scaling and offset circuit we built last time, making it less dependent on temperature. Also, we're fine-tuning the VCO. Topics also include PNP transistors, emitter followers and voltage subtraction. If you want to follow along, here's a bill of materials:
1x BC558C Transistor
1x 1M Resistor
1x 1.5K Resistor
1x 1K Precision Trimmer
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