Electrical Education Query

[ourclarioncall]

Wondering what people’s thoughts are on the course content below. I found a series of videos on YouTube. My long term goals would be to be able to modify and build guitars , guitar amps and effects pedal . I am in the UK. University education is not an option so I have to self study and trawl the internet.

Anyway,

Would the following curriculum get me in the ball park of meeting my goals?

Thanks for the feedback
——————
Engineering Circuit Analysis: Volume 1 -- 10 Hour Course

1: Voltage, Current, and Resistance
2: Overview of Circuit Components
3: Ohm's Law
4: Power Calculations in Circuits
5: Kirchhoff's Current Law
6: Kirchhoff's Voltage Law
7: Circuit Analysis using Kirchhoff's Laws - Part 1
8: Circuit Analysis using Kirchhoff's Laws - Part 2
9: Circuit Analysis using Kirchhoff's Laws - Part 3
10: Circuit Analysis using Kirchhoff's Laws - Part 4
11: Circuit Analysis using Kirchhoff's Laws - Part 5
12: Circuit Analysis using Kirchhoff's Laws - Part 6
13: Circuit Analysis using Kirchhoff's Laws - Part 7
14: Dependent Current Sources - Part 1
15: Dependent Current Sources - Part 2
16: Resistors in Series and Parallel - Part 1
17: Resistors in Series and Parallel - Part 2
18: Voltage Divider Circuits - Part 1
19: Voltage Divider Circuits - Part 2
20: Current Divider Circuits


Engineering Circuit Analysis: Vol 2 -- 9 Hour Course
Node Voltage and Mesh Current Analysis Methods

1: Introduction to the Node Voltage Method
2: Node Voltage Problems - Part 1
3: Node Voltage Problems - Part 2
4: Node Voltage Problems - Part 3
5: Node Voltage Problems - Part 4
6: Node Voltage Problems - Part 5
7: Node Voltage with Dependent Sources - Part 1
8: Node Voltage with Dependent Sources - Part 2
9: Node Voltage with Dependent Sources - Part 3
10: Introduction to the Mesh Current Method
11: Mesh Current Problems - Part 1
12: Mesh Current Problems - Part 2
13: Mesh Current Problems - Part 3
14: Mesh Current Problems - Part 4
15: Mesh Currents with Dependent Sources - Part 1
16: Mesh Currents with Dependent Sources - Part 2
17: Mesh Currents with Dependent Sources - Part 3
18: Mesh Currents with Dependent Sources - Part 4


Engineering Circuit Analysis: Vol 3 -- 7 Hour Course 
Thevenin / Norton Equivalent Circuits & More

1: Source Transformations - Part 1
2: Source Transformations - Part 2
3: Source Transformations - Part 3
4: Source Transformations - Part 4
5: Thevenin Equivalent Circuits - Part 1
6: Thevenin Equivalent Circuits - Part 2
7: Thevenin Equivalent Circuits - Part 3
8: Thevenin Equivalent Circuits - Part 4
9: Thevenin Equivalents with Depdendent Sources - Part 1
10: Thevenin Equivalents with Dependent Sources - Part 2
11: Thevenin Equivalents with Dependent Sources - Part 3
12: Norton Equivalent Circuits - Part 1
13: Norton Equivalent Circuits - Part 2
14: Norton Equivalent Circuits - Part 3
15: Maximum Power Transfer - Part 1
16: Maximum Power Transfer - Part 2
17: Maximum Power Transfer - Part 3
18: Superposition in Circuits - Part 1
19: Superposition in Circuits - Part 2

Engineering Circuit Analysis: Vol 4 -- 6 Hr Course 
Capacitors, Inductors & More!

1: Voltage Across an Inductor - Part 1
2: Voltage Across an Inductor - Part 2
3: Current Through an Inductor - Part 1
4: Current Through an Inductor - Part 2
5: Power and Energy in an Inductor, Part 1
6: Power and Energy in an Inductor, Part 2
7 Power and Energy in an Inductor - Part 3
8: Current Through a Capacitor
9: Voltage, Power, and Energy Storage in a Capacitor
10: Capacitor Problems - Part 1
11: Capacitor Problems - Part 2
12: Inductors and Capacitors in Series and Parallel
13: Series and Parallel Circuits - Part 1
14: Series and Parallel Circuits - Part 1
15: Series and Parallel Circuits - Part 3
16: Series and Parallel Circuits - Part 4
17: Series and Parallel Circuits - Part 5


Engineering Circuit Analysis: Vol 5 -- 5 Hour Course 
Natural and Step Response of Circuits

1: Introduction to Natural and Step Response
2: Natural Response of LR Circuits
3: Time Constant of LR Circuits
4: LR Natural Response Circuit Problems, Part 1
5: LR Natural Response Circuit Problems, Part 2
6: LR Natural Response Circuit Problems, Part 3
7: Natural Response of RC Circuits
8: RC Natural Response Circuit Problems, Part 1
9: RC Natural Response Circuit Problems, Part 2
10: Step Response of LR Circuits
11: LR Step Response Circuit Problem
12: Step Response of RC Circuits
13: RC Step Response Circuit Problem
14: General Solution of Step and Natural Response
15: Use General Form to Solve Problems


Engineering Circuit Analysis: Volume 6 --
Op-Amp Circuits, Part 1

1: What is an Operational Amplifer (Op-Amp)?
Sect 2: Op-amp Terminals and Circuit Symbol
Sect 3: Op-Amp Terminal Voltages and Currents
Sect 4: Op-Amp Gain and Linear Region
Sect 5: Ideal Op-Amp Virtual Short and Input Current
Sect 6: Op-Amp Input and Output Resistance
Sect 7: Basic Op-Amp Problems, Part 1
Sect 8: Basic Op-Amp Problems, Part 2
Sect 9: Basic Op-Amp Problems, Part 3
Sect 10: Basic Op-Amp Problems, Part 4
Sect 11: Basic Op-Amp Problems, Part 5
Sect 12: Basic Op-Amp Problems, Part 6
Sect 13: Basic Op-Amp Problems, Part 7
Sect 14: The Inverting Op-Amp Circuit
Sect 15: Inverting Op-Amp Problems, Part 1
Sect 16: Inverting Op-Amp Problems, Part 2
Sect 17: Inverting Op-Amp Problems, Part 3
Sect 18: Inverting Op-Amp Problems, Part 4
Sect 19: The Summing Amplifier Circuit
Sect 20: Summing Amplifier Problems, Part 1
Sect 21: Summing Amplifier Problems, Part 2
Sect 22: Summing Amplifier Problems, Part 3


Engineering Circuit Analysis: Volume 7 --
Op-Amp Circuits, Part 2


Sect 1: The Non-Inverting Amplifier Circuit
Sect 2: Non-Inverting Amplifier Problems, Part 1
Sect 3: Non-Inverting Amplifier Problems, Part 2
Sect 4: Non-Inverting Amplifier Problems, Part 3
Sect 5: Non-Inverting Amplifier Problems, Part 4
Sect 6: The Difference Amplifier Circuit
Sect 7: Difference Amplifier Problems, Part 1
Sect 8: Difference Amplifier Problems, Part 2
Sect 9: Difference Amplifier Problems, Part 3
Sect 10: Common Mode Rejection Ratio Overview
Sect 11: Common Mode and Differential Mode Signal Components
Sect 12: Deriving the Common Mode Rejection Ratio
Sect 13: Common Mode Rejection Ratio Problems, Part 1
Sect 14: Common Mode Rejection Ratio Problems, Part 2
Sect 15: The Integrating Amplifier Circuit
Sect 16: Integrating Amplifier with a Square Pulse Input
Sect 17: Integrating Amplifier Problems, Part 1
Sect 18: Integrating Amplifier Problems, Part 2
Sect 19: Integrating Amplifier Problems, Part 3
Sect 20: Integrating Amplifier Problems, Part 4

*********
*********
*********


AC Circuit Analysis Tutor - Vol 1
Phasor Analysis of AC Circuits

Sect 1: What is Alternating Current?
Sect 2: Sinusoidal Sources, Part 1
Sect 3: Sinusoidal Sources, Part 2
Sect 4: RMS Value of a Periodic Function
Sect 5: Practice with Sinusoidal Sources
Sect 6: Review of Complex Numbers
Sect 7: Circuits with Sinusoidal Sources
Sect 8: The Phasor
Sect 9: Practice with Phasors
Sect 10: Impedance of Inductors and Resistors
Sect 11: Impedance of Capacitors
Sect 12: Practice with Impedance
Sect 13: Kirchhoff's Laws in the Phasor Domain, Part 1
Sect 14: Kirchhoff's Laws in the Phasor Domain, Part 2
Sect 15: Series and Parallel Circuits in the Phasor Domain
Sect 16: Solving AC Circuits with Phasors, Part 1
Sect 17: Solving AC Circuits with Phasors, Part 2
Sect 18: Solving AC Circuits with Phasors, Part 3
Sect 19: Solving AC Circuits with Phasors, Part 4
Sect 20: Solving AC Circuits with Phasors, Part 5
Sect 21: Solving AC Circuits with Phasors, Part 6


AC Circuit Analysis Tutor - Vol 2
AC Node Voltage & AC Mesh Currents
- 6 Hour Duration

Sect 1: AC Source Transformations
Sect 2: AC Thevenin Equivalent Circuit Problems, Part 1
Sect 3: AC Thevenin Equivalent Circuit Problems, Part 2
Sect 4: AC Thevenin Equivalent Circuit Problems, Part 3
Sect 5: AC Thevenin Equivalent Circuit Problems, Part 4
Sect 6: AC Thevenin Equivalent Circuit Problems, Part 5
Sect 7: AC Node Voltage Problems, Part 1
Sect 8: AC Node Voltage Problems, Part 2
Sect 9: AC Node Voltage Problems, Part 3
Sect 10: AC Node Voltage Problems, Part 4
Sect 11: AC Node Voltage Problems, Part 5
Sect 12: AC Mesh Current Problems, Part 1
Sect 13: AC Mesh Current Problems, Part 2
Sect 14: AC Mesh Current Problems, Part 3
Sect 15: AC Mesh Current Problems, Part 4
Sect 16: AC Mesh Current Problems, Part 5

 AC Circuit Analysis Tutor - Vol 3
AC Real and Reactive Power Calculations
- 7 Hour Duration

Sect 1: Instantaneous Power
Sect 2: Average Power Definition
Sect 3: Real Power
Sect 4: Reactive Power with Inductive Load
Sect 5: Reactive Power with Capacitive Load
Sect 6: Real and Reactive Power Together
Sect 7: Units of Real and Reactive Power
Sect 8: Power Factor and Reactive Factor
Sect 9: Real and Reactive Power Problems, Part 1
Sect 10: Real and Reactive Power Problems, Part 2
Sect 11: RMS Value in Power Calculations
Sect 12: Complex Power Theory, Part 1
Sect 13: Complex Power Theory, Part 2
Sect 14: Complex Power Theory, Part 3
Sect 15: Complex Power Problems, Part 1
Sect 16: Complex Power Problems, Part 2
Sect 17: Complex Power Problems, Part 3
Sect 18: Complex Power Problems, Part 4
Sect 19: Complex Power Problems, Part 5
Sect 20: Complex Power Problems, Part 6
Sect 21: Maximum Power Transfer, Part 1
Sect 22: Maximum Power Transfer, Part 2
Sect 23: Maximum Power Transfer, Part 3


AC Circuit Analysis Tutor - Vol 4
- AC 3-Phase Analysis, Part 1 - 10 Hour Duration

Sect 1: What is 3-Phase Electricity?
Sect 2: Why is 3-Phase Power Useful?
Sect 3: Balanced 3-Phase Voltages and Phase Sequence, Part 1
Sect 4: Balanced 3-Phase Voltages and Phase Sequence, Part 2
Sect 5: Three Phase Voltage Sources - Wye and Delta
Sect 6: Balanced Wye-Wye Analysis - The Neutral Voltage
Sect 7: Line Currents in the Wye-Wye Circuit
Sect 8: The Single Phase Equivalent Circuit
Sect 9: Line-to-Neutral and Line-to-Line Voltage, Part 1
Sect 10: Line-to-Neutral and Line-to-Line Voltage, Part 2
Sect 11: Line-to-Neutral and Line-to-Line Voltage, Part 3
Sect 12: Convert Between Line-to-Neutral and Line-to-Line Voltage, Part 1
Sect 13: Convert Between Line-to-Neutral and Line-to-Line Voltage, Part 2
Sect 14: Important 3-Phase Circuit Terminology
Sect 15: Wye-Wye 3-Phase Circuit Problems, Part 1
Sect 16: Wye-Wye 3-Phase Circuit Problems, Part 2
Sect 17: Wye-Wye 3-Phase Circuit Problems, Part 3
Sect 18: Wye-Wye 3-Phase Circuit Problems, Part 4
Sect 19: Wye-Wye 3-Phase Circuit Problems, Part 5
Sect 20: Wye-Wye 3-Phase Circuit Problems, Part 6
Sect 21: Wye-Wye 3-Phase Circuit Problems, Part 7
Sect 22: Wye-Wye 3-Phase Circuit Problems, Part 8
Sect 23: Wye-Wye 3-Phase Circuit Problems, Part 9


AC Circuit Analysis Tutor - Vol 5
- AC 3-Phase Analysis, Part 2 - 7 Hour Duration

Sect 1: Delta Load Line-Current to Phase-Current Conversion
Sect 2: Summary of Voltage and Current Shifting
Sect 3: Analyzing the Wye-Delta Circuit
Sect 4: Wye-Delta Single Phase Equivalent Circuits
Sect 5: Wye-Delta 3-Phase Circuit Problems, Part 1
Sect 6: Wye-Delta 3-Phase Circuit Problems, Part 2
Sect 7: Wye-Delta 3-Phase Circuit Problems, Part 3
Sect 8: Wye-Delta 3-Phase Circuit Problems, Part 4
Sect 9: Wye-Delta 3-Phase Circuit Problems, Part 5
Sect 10: Wye-Delta 3-Phase Circuit Problems, Part 6
Sect 11: Wye-Delta 3-Phase Circuit Problems, Part 7
Sect 12: Delta-Wye and Delta-Delta 3-Phase Circuit Analysis
Sect 13: Delta-Wye 3-Phase Circuit Problems, Part 1
Sect 14: Delta-Wye 3-Phase Circuit Problems, Part 2
Sect 15: Delta-Wye 3-Phase Circuit Problems, Part 3


AC Circuit Analysis Tutor - Vol 6
- AC 3-Phase Analysis, Part 3 - 6 Hour Duration

Sect 1: Delta-Delta 3-Phase Circuit Problems, Part 1
Sect 2: Delta-Delta 3-Phase Circuit Problems, Part 2
Sect 3: Review of Real and Reactive Power
Sect 4: Real Power in a Balanced Wye Load
Sect 5: Complex Power in a Balanced Wye Load
Sect 6: Real and Reactive Power in a Balanced Delta Load
Sect 7: Three Phase Power Problems, Part 1
Sect 8: Three Phase Power Problems, Part 2
Sect 9: Three Phase Power Problems, Part 3
Sect 10: Three Phase Power Problems, Part 4
Sect 11: Three Phase Power Problems, Part 5
Sect 12: Three Phase Power Problems, Part 6

[newey]

It certainly sounds comprehensive, and undoubtedly covers more material than you would need to do the three things you listed as goals: build/mod guitars, Build/mod amps and effects pedals.

As to building guitars, if you mean to do more than assemble parts made by others, a good woodworking course would be of more help than electrical theory. As for the electric wiring, it's fairly trivial from a theory standpoint. Good soldering skills will get you further than theory.

In fact, if you take the class or not, you can start wiring guitars today, knowing just what you already know plus what we can walk you through. Hit a pawn broker, find a decent "test mule", and fire up the soldering iron. Learn by doing, right alongside your studies.

Wire a few guitars, and you can then take a stab at a stompbox circuit. Again, no real theory needed unless you plan to design your own effects circuit. But out on the web, you're likely to find that someone has already done whatever you dream up, and probably posted a diagram. You could spend years just working on mods to existing designs, as ashcatlt and tragichero have sometimes done.

I signed up here about 12 years ago knowing less than nothing about guitar wiring. Go back and read some of my early posts, I was an idiot. But I read up here, asked questions, and dove into the hobby of modding guitars. I have tried a couple of simple pedals, without particularly good results, but chalk that up to crappy soldering skills more than anything else- I had the "follow-the-diagram" part of it down pat.

Amps? That's a whole 'nother subject, and certainly nothing I would tackle (well, I could probably assemble a kit for a simple 1-tube amp or something, don't know, never tried it). Some degree of knowledge is needed to operate at that level of complexity, but it's probably only a fraction of what you'll get in that course.

But, I'm of the opinion that knowledge is its own reward, so go for it!

[sumgai]

occ,


To get you on the road, you can use some of these vids. I've not personally vetted them, so I'll not vouch for them, but I don't think they can hurt. At the least, they should give you a good grasp of the basics. Even better, they'll complement the US Navy course I linked in your other recent thread. That material I have read over, and I find it just right for the average "curious beginner".

Here are the sections/volumes I'd recommend, and those I'd advise you to skip over for now.

Section 1:
vol 1: use 1-3 and 17-20, skip 4-16 for now

vol 2 & 3: skip everything here, they won't get you very far toward your goal, but you'll want to revisit them for study, as you take up Section 2 vol 2.

vol 4: use 1-3, then go back to Vol 1 and study 4-16. Now you are properly prepared for the rest of vol 4 - get it all, but be sure to study extra hard on 13-17, they'll be the very foundation for 98% of all you guitar work from now on.

vol 5: use all, but take it in at a slower pace. This stuff is important for a deeper understanding of tone controls.

vol 6 & 7: while this stuff is relatively simple, they're not gonna further your goals vis-a-vis a guitar's innards.  Put these on hold for now.
 

Second Section (AC Analysis Tutor):

Undertake study of this material only after a few months of getting used to everything else you've learned above.  Trust me, there's a reason for the separation of Sections like this.

vol 1-3:  Now take a while to view and absorb vol 6 & 7 above.  Along with those, these first three volumes will get you well into amplifier territory.  Not a thorough treatise mind you, but certainly a cut above what you usually find in the "How to replace a tube in a guitar amp" type of stuff.

The rest of the volumes are pretty much geared toward power production (large scale generators and the like).  While it's nice to know, it's necessary only when the urge comes upon you to go out and BS with other engineers who are pros in this field.

That's my professional opinion on the courses you've presented us.

HTH

sumgai

[ourclarioncall]

Thanks again Newey / Sumgai

Yeah, I won’t abandon the Navy stuff, il dig into that too

I think at this stage i want to focus on power sources and how people “create” electricity. To start at the start. I still really don’t understand how a guitar pickup works. I don’t even know how a simple battery works. think I really want to lay a good foundation here before moving on to current/components etc.

If I was shiprwrecked on a dessert island and have access to materials that can give me power , a guitar and an amp , how do I first harness electricity ? What are my options?

I think I need to read up more about atoms , charge and electrons too

Just as an example of the kind of thoughts that go around my head here’s an example question I might ask-

In a single coil pickup the movement of the string does something. I know that eventually we get current flowing . In part of that process , what is happening in the copper wire that is wrapped around and around ? Does the electrons follow the path of the copper wire ? Going round and round and round? Or because all the copper wire is sort of touching each other as one big blob, do the electrons just randomly move around as if all those windings were actually one big lump of copper ? Why not have a big lump of copper and just drill holes for the magnets to sit in?

[ourclarioncall]

Sumgai

You sound like you know your stuff

I’m assuming you are qualified in this field ?

Did you say you were a tutor too?

[ourclarioncall]

Newey

I have tinkered about with buying guitar parts over the years and making partscasters.

I used to go to the original guitar nuts page and loved reading about all the different mods n stuff.

I attempted a switching system once as a newbie and it failed , I think that I must have melted the switches by holding the soldering iron on too long.

Then i managed to successfully wire up some quality pickups and pots etc. So I’m confident enough in these areas and know i could get the results I want but now I really want to understand thoroughly what I’m doing.

I’d love to take all my favourite stomp boxes and build them into my own custom unit. Love to build stomp boxes into guitar bodies. Love to make my own amps, some specifically for guitar teachers and students . I just need the knowledge to be able to do it all or at least be able to contribute or partner with people that have other skills I don’t to pull these things off.

[ourclarioncall]

Okay, for future reference and for anyone else that might find this Sumgai recommended sequence helpful, here is is.

The first section is DC and the second section AC. All the vids can be found in the playlists on the YouTube channel called “Math and Science”. There is a website too you can pay a subscription too for more content/tuition related to the vids. The website is called MathTutorDVD.com (but it’s not just maths, it’s a variety of maths and sciences)

———————-

Engineering Circuit Analysis

😎 DC 1:1-3 and 16-20
1: Voltage, Current, and Resistance
2: Overview of Circuit Components
3: Ohm's Law

16: Resistors in Series and Parallel - Part 1
17: Resistors in Series and Parallel - Part 2
18: Voltage Divider Circuits - Part 1
19: Voltage Divider Circuits - Part 2
20: Current Divider Circuits

😎 DC 4:1-4
1: Voltage Across an Inductor - Part 1
2: Voltage Across an Inductor - Part 2
3: Current Through an Inductor - Part 1
4: Current Through an Inductor - Part 2

😎 DC 1:4-15
4: Power Calculations in Circuits
5: Kirchhoff's Current Law
6: Kirchhoff's Voltage Law
7: Circuit Analysis using Kirchhoff's Laws - Part 1
8: Circuit Analysis using Kirchhoff's Laws - Part 2
9: Circuit Analysis using Kirchhoff's Laws - Part 3
10: Circuit Analysis using Kirchhoff's Laws - Part 4
11: Circuit Analysis using Kirchhoff's Laws - Part 5
12: Circuit Analysis using Kirchhoff's Laws - Part 6
13: Circuit Analysis using Kirchhoff's Laws - Part 7
14: Dependent Current Sources - Part 1
15: Dependent Current Sources - Part 2

😎 DC 4:5-17
5: Power and Energy in an Inductor, Part 1
6: Power and Energy in an Inductor, Part 2
7 Power and Energy in an Inductor - Part 3
8: Current Through a Capacitor
9: Voltage, Power, and Energy Storage in a Capacitor
10: Capacitor Problems - Part 1
11: Capacitor Problems - Part 2
12: Inductors and Capacitors in Series and Parallel
** 13: Series and Parallel Circuits - Part 1
** 14: Series and Parallel Circuits - Part 1
** 15: Series and Parallel Circuits - Part 3
** 16: Series and Parallel Circuits - Part 4
** 17: Series and Parallel Circuits - Part 5

😎 DC 5:1-15
1: Introduction to Natural and Step Response
2: Natural Response of LR Circuits
3: Time Constant of LR Circuits
4: LR Natural Response Circuit Problems, Part 1
5: LR Natural Response Circuit Problems, Part 2
6: LR Natural Response Circuit Problems, Part 3
7: Natural Response of RC Circuits
8: RC Natural Response Circuit Problems, Part 1
9: RC Natural Response Circuit Problems, Part 2
10: Step Response of LR Circuits
11: LR Step Response Circuit Problem
12: Step Response of RC Circuits
13: RC Step Response Circuit Problem
14: General Solution of Step and Natural Response
15: Use General Form to Solve Problems


🥳 AC 1:1-21
Sect 1: What is Alternating Current?
Sect 2: Sinusoidal Sources, Part 1
Sect 3: Sinusoidal Sources, Part 2
Sect 4: RMS Value of a Periodic Function
Sect 5: Practice with Sinusoidal Sources
Sect 6: Review of Complex Numbers
Sect 7: Circuits with Sinusoidal Sources
Sect 8: The Phasor
Sect 9: Practice with Phasors
Sect 10: Impedance of Inductors and Resistors
Sect 11: Impedance of Capacitors
Sect 12: Practice with Impedance
Sect 13: Kirchhoff's Laws in the Phasor Domain, Part 1
Sect 14: Kirchhoff's Laws in the Phasor Domain, Part 2
Sect 15: Series and Parallel Circuits in the Phasor Domain
Sect 16: Solving AC Circuits with Phasors, Part 1
Sect 17: Solving AC Circuits with Phasors, Part 2
Sect 18: Solving AC Circuits with Phasors, Part 3
Sect 19: Solving AC Circuits with Phasors, Part 4
Sect 20: Solving AC Circuits with Phasors, Part 5
Sect 21: Solving AC Circuits with Phasors, Part 6


🥳 AC 2:1-16
Sect 1: AC Source Transformations
Sect 2: AC Thevenin Equivalent Circuit Problems, Part 1
Sect 3: AC Thevenin Equivalent Circuit Problems, Part 2
Sect 4: AC Thevenin Equivalent Circuit Problems, Part 3
Sect 5: AC Thevenin Equivalent Circuit Problems, Part 4
Sect 6: AC Thevenin Equivalent Circuit Problems, Part 5
Sect 7: AC Node Voltage Problems, Part 1
Sect 8: AC Node Voltage Problems, Part 2
Sect 9: AC Node Voltage Problems, Part 3
Sect 10: AC Node Voltage Problems, Part 4
Sect 11: AC Node Voltage Problems, Part 5
Sect 12: AC Mesh Current Problems, Part 1
Sect 13: AC Mesh Current Problems, Part 2
Sect 14: AC Mesh Current Problems, Part 3
Sect 15: AC Mesh Current Problems, Part 4
Sect 16: AC Mesh Current Problems, Part 5

😎 DC 2:1-18
1: Introduction to the Node Voltage Method
2: Node Voltage Problems - Part 1
3: Node Voltage Problems - Part 2
4: Node Voltage Problems - Part 3
5: Node Voltage Problems - Part 4
6: Node Voltage Problems - Part 5
7: Node Voltage with Dependent Sources - Part 1
8: Node Voltage with Dependent Sources - Part 2
9: Node Voltage with Dependent Sources - Part 3
10: Introduction to the Mesh Current Method
11: Mesh Current Problems - Part 1
12: Mesh Current Problems - Part 2
13: Mesh Current Problems - Part 3
14: Mesh Current Problems - Part 4
15: Mesh Currents with Dependent Sources - Part 1
16: Mesh Currents with Dependent Sources - Part 2
17: Mesh Currents with Dependent Sources - Part 3
18: Mesh Currents with Dependent Sources - Part 4


😎 DC 3:1-19
1: Source Transformations - Part 1
2: Source Transformations - Part 2
3: Source Transformations - Part 3
4: Source Transformations - Part 4
5: Thevenin Equivalent Circuits - Part 1
6: Thevenin Equivalent Circuits - Part 2
7: Thevenin Equivalent Circuits - Part 3
8: Thevenin Equivalent Circuits - Part 4
9: Thevenin Equivalents with Depdendent Sources - Part 1
10: Thevenin Equivalents with Dependent Sources - Part 2
11: Thevenin Equivalents with Dependent Sources - Part 3
12: Norton Equivalent Circuits - Part 1
13: Norton Equivalent Circuits - Part 2
14: Norton Equivalent Circuits - Part 3
15: Maximum Power Transfer - Part 1
16: Maximum Power Transfer - Part 2
17: Maximum Power Transfer - Part 3
18: Superposition in Circuits - Part 1
19: Superposition in Circuits - Part 2


🥳 AC 3:1-23
Sect 1: Instantaneous Power
Sect 2: Average Power Definition
Sect 3: Real Power
Sect 4: Reactive Power with Inductive Load
Sect 5: Reactive Power with Capacitive Load
Sect 6: Real and Reactive Power Together
Sect 7: Units of Real and Reactive Power
Sect 8: Power Factor and Reactive Factor
Sect 9: Real and Reactive Power Problems, Part 1
Sect 10: Real and Reactive Power Problems, Part 2
Sect 11: RMS Value in Power Calculations
Sect 12: Complex Power Theory, Part 1
Sect 13: Complex Power Theory, Part 2
Sect 14: Complex Power Theory, Part 3
Sect 15: Complex Power Problems, Part 1
Sect 16: Complex Power Problems, Part 2
Sect 17: Complex Power Problems, Part 3
Sect 18: Complex Power Problems, Part 4
Sect 19: Complex Power Problems, Part 5
Sect 20: Complex Power Problems, Part 6
Sect 21: Maximum Power Transfer, Part 1
Sect 22: Maximum Power Transfer, Part 2
Sect 23: Maximum Power Transfer, Part 3

😎 DC 6:1-22
1: What is an Operational Amplifer (Op-Amp)?
Sect 2: Op-amp Terminals and Circuit Symbol
Sect 3: Op-Amp Terminal Voltages and Currents
Sect 4: Op-Amp Gain and Linear Region
Sect 5: Ideal Op-Amp Virtual Short and Input Current
Sect 6: Op-Amp Input and Output Resistance
Sect 7: Basic Op-Amp Problems, Part 1
Sect 8: Basic Op-Amp Problems, Part 2
Sect 9: Basic Op-Amp Problems, Part 3
Sect 10: Basic Op-Amp Problems, Part 4
Sect 11: Basic Op-Amp Problems, Part 5
Sect 12: Basic Op-Amp Problems, Part 6
Sect 13: Basic Op-Amp Problems, Part 7
Sect 14: The Inverting Op-Amp Circuit
Sect 15: Inverting Op-Amp Problems, Part 1
Sect 16: Inverting Op-Amp Problems, Part 2
Sect 17: Inverting Op-Amp Problems, Part 3
Sect 18: Inverting Op-Amp Problems, Part 4
Sect 19: The Summing Amplifier Circuit
Sect 20: Summing Amplifier Problems, Part 1
Sect 21: Summing Amplifier Problems, Part 2
Sect 22: Summing Amplifier Problems, Part 3

😎 DC 7:1-20
Sect 1: The Non-Inverting Amplifier Circuit
Sect 2: Non-Inverting Amplifier Problems, Part 1
Sect 3: Non-Inverting Amplifier Problems, Part 2
Sect 4: Non-Inverting Amplifier Problems, Part 3
Sect 5: Non-Inverting Amplifier Problems, Part 4
Sect 6: The Difference Amplifier Circuit
Sect 7: Difference Amplifier Problems, Part 1
Sect 8: Difference Amplifier Problems, Part 2
Sect 9: Difference Amplifier Problems, Part 3
Sect 10: Common Mode Rejection Ratio Overview
Sect 11: Common Mode and Differential Mode Signal Components
Sect 12: Deriving the Common Mode Rejection Ratio
Sect 13: Common Mode Rejection Ratio Problems, Part 1
Sect 14: Common Mode Rejection Ratio Problems, Part 2
Sect 15: The Integrating Amplifier Circuit
Sect 16: Integrating Amplifier with a Square Pulse Input
Sect 17: Integrating Amplifier Problems, Part 1
Sect 18: Integrating Amplifier Problems, Part 2
Sect 19: Integrating Amplifier Problems, Part 3
Sect 20: Integrating Amplifier Problems, Part 4

[sumgai]

occ,


Another nice resource:

www.learningaboutelectronics.com/


But the difference here is, this isn't so much course work as it a reference for specific topics. Sort of like a WIKI to fill in your suddenly recognized gaps, if you get my meaning. I think of it as a way to find out more about, say, "what's a voltage regulator?", and not make you wait until some teacher gets around to it in their syllabus.

Might be handy, who knows.

HTH




sumgai

p.s. And yes, I did wear a Professor's hat at one point in time. I'm retired now, but I have always felt that teachers/professors should not be stuck in academia forever - they should get back out into the field (the real world) for at least 2 years for every 5 years they spend in the classroom. That way they don't grow stale, or so I should think. For this reaosn, my CV looks very spotty.

[ourclarioncall]

Dec 7, 2019 14:26:13 GMT -5 sumgai said:

occ,


Another nice resource:

www.learningaboutelectronics.com/


But the difference here is, this isn't so much course work as it a reference for specific topics. Sort of like a WIKI to fill in your suddenly recognized gaps, if you get my meaning. I think of it as a way to find out more about, say, "what's a voltage regulator?", and not make you wait until some teacher gets around to it in their syllabus.

Might be handy, who knows.

HTH




sumgai

p.s. And yes, I did wear a Professor's hat at one point in time. I'm retired now, but I have always felt that teachers/professors should not be stuck in academia forever - they should get back out into the field (the real world) for at least 2 years for every 5 years they spend in the classroom. That way they don't grow stale, or so I should think. For this reaosn, my CV looks very spotty.

Hey , thanks, I keep jumping back and forth between different electronic websites tabs I have open . Wisdom in many counsellors. I will add the one you posted to the list

Now that you are retired are you going to produce the ultimate guitar electronics guide for guys like me ??! 🤗

Funnily enough I actually had a guitar electronics book years ago and gave it to somebody. Some of the problems with these kind of books are they seem pretty dated, or drab to look at, or the jump in at too deep a level. One of or maybe the best way to learn is to learn with a goal to teach others. This means you have to thoroughly know your stuff before you can attempt to strategically build it into someone else.

YouTube vids are a great supplement to books or maybe books are a good supplement to vids , it depends. And these forums for asking questions are fantastic , it gives you access to someone in real life you can engage with

There is a British guitar builder on YouTube who has hit on a great combination of these things. He walks you through everything on video , sells ebooks, he chats to you in the comments section on YouTube , he is also on Facebook and will chat to you via private message to.

There’s got to be somebody out there that can or is currently doing something similar in regard to guitar electronics . For an enthusiastic newbie I have had to really dig to and ask lots of questions to even begin to get on a consistent path of learning , at the moment I am very glad to have found a lot of the info I need but everything is a bit fragmented in my head. Anyway , it’s all good, I will get there in the end , but I do think there is a real gap here for someone to step in and lead the way in teaching this stuff

[thetragichero]

this forum was a starting point but I'm also a member of two stomp box building forums and a couple amp building forums. i eventually joined after being led to the same sites over and over again via Google results (similar to the "what is a voltage regulator?" question)
when you get there, I've got a number of good bookmarks for messing around with amps/effects: calculators for rc filters, gyrators, parallel resistors, cathode bypass, etc. learning the how and the why behind those things is great but these have proven invaluable to me

but yes, start at the beginning and keep going until you reach the end ;-)

[JohnH]

Learning engineering and how to learn it / teach it is an interesting subject in itself. I'm still a learner, 50 years after being fascinated by electricity in primary school. These days I'm a practicing structural engineer, I also teach it part-time at Sydney University, and I'm still an interested amateur in electronics.

So, what's the best way of teaching/learning? This is what works for me, and my students:

Chew carefully on a very small but important subset of relevant theory, as little as possible.
Pick/have/be given, a real problem or design to solve
Go do it! researching more theory with enthusiasm and motivation to solve your problem

Seriously, I got soooo bored with most engineering lectures that I attended, and textbooks that I had to read. But what they were telling me came alive when I was told to; 'Design this! - I needed it by last Friday!'....

..... (hence I worked out a lot about time travel, but unfortunately I lost my notes in 1872)


But that's how I teach it, with problems designed to explore principles, but is a safe environment where mistakes are allowed, and with a time-frame adequately future-based.


For electronics, I'd suggest a roadmap to learning based on those ideas, and based around something real that you want to solve or build for yourself.

[ourclarioncall]

Dec 7, 2019 17:24:13 GMT -5 thetragichero said:

this forum was a starting point but I'm also a member of two stomp box building forums and a couple amp building forums. i eventually joined after being led to the same sites over and over again via Google results (similar to the "what is a voltage regulator?" question)
when you get there, I've got a number of good bookmarks for messing around with amps/effects: calculators for rc filters, gyrators, parallel resistors, cathode bypass, etc. learning the how and the why behind those things is great but these have proven invaluable to me

but yes, start at the beginning and keep going until you reach the end ;-)

It’s interesting to follow the journey we or others take.

I bought a couple nice pedals from USA and got them shipped over here to UK, or my mother in law took one over when she visited . I had a keeley compressor which was really nice. I plugged my guitar into it, then the keeley into a di box then into the mixing desk and it sounded great in the mix. I also go a bb preamp (orange box). Have a cheap looper pedal, and have bought a boss eq pedal for boosting the midrange for solos and also a boss compressor which I gave to a friend. Have had a few solid state amps and had a nice blue Laney lion heart 5watt valve amp , but was still far too loud.

I would love to build all my favourite pedals into one big custom multi pedal but have never built a pedal like the build your own clone. As far as amps I would like to experiment with low power valve amps that use 15” speakers. A 2x15 combo would be pretty cool or go nuts with a 4x15 cab

It’s mainly been guitar electronics that has been the inspiration and motivation overall. I’ve dabbled a little bit and managed to wire up everything from scratch, pickups pots switch etc.

So do you build pedals or amps ? What is your main motivation?

[ourclarioncall]

Dec 7, 2019 18:04:18 GMT -5 JohnH said:

Learning engineering and how to learn it / teach it is an interesting subject in itself. I'm still a learner, 50 years after being fascinated by electricity in primary school. These days I'm a practicing structural engineer, I also teach it part-time at Sydney University, and I'm still an interested amateur in electronics.

So, what's the best way of teaching/learning? This is what works for me, and my students:

Chew carefully on a very small but important subset of relevant theory, as little as possible.
Pick/have/be given, a real problem or design to solve
Go do it! researching more theory with enthusiasm and motivation to solve your problem

Seriously, I got soooo bored with most engineering lectures that I attended, and textbooks that I had to read. But what they were telling me came alive when I was told to; 'Design this! - I needed it by last Friday!'....

..... (hence I worked out a lot about time travel)


But that's how I teach it, with problems designed to explore principles, but is a safe environment where mistakes are allowed, and with a time-frame adequately future-based.


For electronics, I'd suggest a roadmap to learning based on those ideas, and based around something real that you want to solve or build for yourself.

Greetings, yeah, the whole learning /teaching thing is quite fascinating.

Thanks for the tips , i will think about them and how I can get myself on a more effective consistent learning curve. I definitely need more practical experience.

I’m very analytical, so tend to spend a lot of time trying to get a Birdseye view . Maybe I spend too much time here (analysis paralysis 😊)

I work as a guitar teacher . I teach one on one, but learned in a large group setting , so it’s interesting to look at the benefits of both and what kind of teaching fits best into different scenarios.

[thetragichero]

Dec 7, 2019 18:38:41 GMT -5 ourclarioncall said:

So do you build pedals or amps ? What is your main motivation?

both. my main motivation is I'm a cheapskate. i would consider my #1 strat bespoke-quality but it came together in iterations over a period of time as my skills improved. I've tried a bunch of classic fuzz circuits for relative pennies compared to retail, and have adjusted them to my own tastes. building amps from old organs and whatnot allows me to play some intriguing stuff for very little money. building a couple amps in cigar boxes to match a cigar box guitar my old man made is a fun project. buying old broken amps to repair and resell has helped me keep a roof over my head for the past several months. i love to tinker and keep my hands busy while watching tv and i approach most of this stuff like they're puzzles to solve

how did i start? assembling/modding a bunch of guitars. assembled effects kit, amp kit. got a breadboard and started experimenting with schematics from the web. downloaded the wampler books and modified a few pedals. repaired a few pedals. repaired a few amps. here i am

[ourclarioncall]

Dec 7, 2019 19:41:25 GMT -5 thetragichero said:

Dec 7, 2019 18:38:41 GMT -5 ourclarioncall said:

So do you build pedals or amps ? What is your main motivation?

both. my main motivation is I'm a cheapskate. i would consider my #1 strat bespoke-quality but it came together in iterations over a period of time as my skills improved. I've tried a bunch of classic fuzz circuits for relative pennies compared to retail, and have adjusted them to my own tastes. building amps from old organs and whatnot allows me to play some intriguing stuff for very little money. building a couple amps in cigar boxes to match a cigar box guitar my old man made is a fun project. buying old broken amps to repair and resell has helped me keep a roof over my head for the past several months. i love to tinker and keep my hands busy while watching tv and i approach most of this stuff like they're puzzles to solve

how did i start? assembling/modding a bunch of guitars. assembled effects kit, amp kit. got a breadboard and started experimenting with schematics from the web. downloaded the wampler books and modified a few pedals. repaired a few pedals. repaired a few amps. here i am

Cheap is good 😂 my father in law taught my wife to be frugal . But I did manage to get her to buy my a custom made strat from warmoth (Washington ) many years ago

I love America, everything is so much cheaper over there. That’s definitely one of the benefits of being in the USA is it’s the land of all things fender.

Yeah, I think if you have the will to learn then anything can be educational and a stepping stone .

A had a little look at breadboards and have one saved in eBay for a long time but never pulled the trigger on getting into that yet.

There’s a guy on YouTube called “uncle Doug “ I think , he put a fender bassman into a 1 x 12 combo . Pretty cool 😎

Never tried the cigar box thing but enjoyed a guy on YouTube that made one in a different tuning temperament . Think it was just intonation instead of equal temperament, sounded pretty nice

There seems to be a lot of money in guitar fx pedals , big market . Well anything guitar related is i suppose !

[sumgai]

Dec 7, 2019 17:24:13 GMT -5 thetragichero said:

....

but yes, start at the beginning and keep going until you reach the end ;-)

If you do reach the end, then you went waaaaayy too quickly, and likely skipped over the more interesting parts. Interesting being defined as; you'll need that info some time down the line, where you'll be brought up short as you finally realize that your knowledge base looks like Swiss cheese!

Or as a somewhat famous person once put it -

The day when you stop learning is the same day when you start dying.

Can't remember who said that, or I'd post the attribution as well.

sumgai