DIY Function Generator FINALE! Does It Actually Work?

Welcome to the FINALE of my DIY Function Generator build!

In this video, we power up the completed project, test the output, and see if this homemade function generator actually works!

We put the circuit through its paces and check the output on the oscilloscope while exploring:

✅ Sine wave output
✅ Frequency adjustment testing
✅ Final troubleshooting and observations
✅ The big power-up moment!

This has been a really fun DIY electronics build, and I’m excited to finally see it working.

If you enjoy beginner-friendly electronics projects, oscilloscope demos, circuit builds, and hands-on learning, you’re in the right place.

Foundation Verse:
📖 Psalm 41:1–2
1 Blessed is he that considereth the poor: the Lord will deliver him in time of trouble.
2 The Lord will preserve him, and keep him alive; and he shall be blessed upon the earth: and thou wilt not deliver him unto the will of his enemies.

👍 If you enjoyed the video, please LIKE, SUBSCRIBE, and COMMENT—I’d love to hear what project you'd like to see next!

I think it’s time to go to the lab! 😄

Website: BuildCircuitsWithRich.com

YouTube Timestamps

0:00 Intro + Thanks for subscribing 🐻
0:21 Funny black bear family selfie
0:33 Let’s go to the lab!
0:33 XR2206 Function Generator Build Part 2 begins
0:48 Installing non-polarized capacitors (C2, C5, etc.)
3:52 Capacitor installation complete
4:09 Installing IC socket (U1)
6:03 Soldering tip: be careful with plastic components
7:10 Why large copper pads are harder to solder
9:40 Installing DC power jack (JK1)
12:06 Installing jumper headers (J1, J2)
14:44 Installing output signal terminal block (P1)
17:14 Installing J3 jumper header
18:47 Soldering tip: what a good solder joint should look like (“Hershey’s Kiss”)
20:15 Board assembly complete! 🎉
21:48 Cleaning the board / removing flux residue
22:23 Installing the XR2206 IC chip
25:30 Finished function generator board reveal
25:47 First power-up (no smoke test 😄)
27:11 Waveform output connections explained
28:10 Installing clear acrylic case
30:44 Setting sine wave + 10–100 Hz jumper range
32:32 Bringing back the DIY oscilloscope build
34:04 Connecting function generator to oscilloscope
34:52 First successful waveform! 📈
36:15 Adjusting oscilloscope settings
38:18 Frequency calculation explained (inverse of time)
38:52 Adjusting waveform amplitude
40:18 Frequency control demo
41:13 Zeroing the waveform / oscilloscope alignment
42:33 Measuring waveform timing and divisions
43:25 Measuring voltage (volts per division explained)
44:36 Calculating 100 Hz output
46:01 Final thoughts: Function generator success!
46:15 Preview of next lesson: Small signal amplifiers
46:39 Foundation Verse — Psalm 41:1–2 ✝️
47:09 End

#Electronics #DIYElectronics #FunctionGenerator #Oscilloscope #CircuitDesign #LearnElectronics #Maker #BuildCircuitsWithRich

Видео DIY Function Generator FINALE! Does It Actually Work? канала Build Circuits With Rich