If you’ve ever fumbled through circuit simulation and ended up with a flatline instead of a sine wave, this video from [saisri] might just be the fix. In this walkthrough she demonstrates simulating a Colpitts oscillator using NI Multisim 14.3 – a deceptively simple analog circuit known for generating stable sine waves. Her video not only shows how to place and wire components, but it demonstrates why precision matters, even in virtual space.
You’ll notice the emphasis on wiring accuracy at multi-node junctions, something many tutorials skim over. [saisri] points out that a single misconnected node in Multisim can cause the circuit to output zilch. She guides viewers step-by-step, starting with component selection via the “Place > Components” dialog, through to running the simulation and interpreting the sine wave output on Channel A. The manual included at the end of the video is a neat bonus, bundling theory, waveform visuals, and circuit diagrams into one handy PDF.
If you’re into precision hacking, retro analogue joy, or just love watching a sine wave bloom onscreen, this is worth your time. You can watch the original video here.
Video seems lacking as an instructional video. It’s mostly a recording of her performing the exercise in Multisim, but she doesn’t actually walk you through it nor explain much as she does it.
She says nothing of the theory nor how the circuit works other than showing the manual at the end.
The part numbers of the capacitors placed in the sim don’t match up with the manual. It made the circuit theory in the manual confusing at first.
The video could do without the music. At least it wasn’t too annoying.
The only oscillator I have ever built in my life was an astable multi-vibrator. I would love to build a faster oscillator.
I should probably take some time out of my daily life and build all the basic circuits at least once.