Mr Carlson's Lab

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Mr Carlson's Lab posts

Posts: 236 Files: 558

OP-AMP Peak Detector Circuit Explained With Oscilloscope

To expand this post, click the large black title just above this. To read all the comments, click "load more comments" (multiple times if needed.)Patreon NEW LIST of Videos: https://www.patreon.com/posts/8239565

Thanks!.. And Check Out This Great Channel.

Thanks for all your input on the lenses in the last video! Check out this great channel, click the link: https://www.youtube.com/channel/UCMh66Lh4AQrkVBpN2N5RZuA Lots of great footage here! Let them know you appreciate their hard work by Subscribing to their channel.Patreon NEW LIST of Videos: https://www.patreon.com/posts/8239565

A Question For All Of You, Moving Forward.

** Your opinions on the intro and end shots of future video's.**There is a new video just below this one, that explains what lead up to this, ( beginning of that video. ) If you haven't watched it yet, I suggest you do... It will help explain this more clearly.Patreon NEW LIST of Videos: https://www.patreon.com/posts/8239565Things in this video to note: Depth Audio (Ignore stock handheld c...

A Digital Display Adapter For Your Curve Tracer Or Oscilloscope.

Build this simple circuit too give your curve tracer or analog oscilloscope a digital display.Quiz questions included.Patreon NEW LIST of Videos: https://www.patreon.com/posts/8239565This is video #20, include this when requesting attachments.Please see below attachment for schematic.

Curve Tracer's Function Explained.

This is an in-depth explanation of the op-amps function in this project. We look at the schematic, then I use test equipment to further clarify the curve tracers operation.Patreon NEW LIST of Videos: https://www.patreon.com/posts/8239565

External Digital Readout Parts List For Curve Tracer:

Hi Everyone!I hope you enjoyed the last video just released on YouTube. If you haven't seen it, here is the link: https://youtu.be/yLr16NJ2Llg Production time on that video was 2 Weeks.... (lots of late hours on that one.)Here is the parts list for the next "block" in this curve tracer project. This will allow the use of an external DC Volt meter of your choice, to very accurately disp...

Let's Build this Curve Tracer!

Click on the large black title (above this) to expand the post.Here it is! A very simple, but extremely useful piece of test gear. In this video, we build the circuit together and test a few example components.Patreon NEW LIST of Videos: https://www.patreon.com/posts/8239565This is video #17, include this when requesting attachments.The schematic is an attachment below:

In Circuit Curve Tracer, Component Tester Parts List:

To expand this post, click the large black title above.This curve tracer/ signature tracer/ component tester, is very versatile. It's safe to test components right in their circuit board, supplying a maximum of only 1 mA. Great for testing semiconductors, all the way to relays! I'm working on the design (actually right now) I figure I will give everyone a head start, so you can gather the ...

Let's Make A Circuit Board!

Here is the circuit board for the last video, (Wien Bridge Oscillator.) In the attachments below, you will find a parts map, and the scaled layout. When it's built, share your results and pictures in the community section.Patreon NEW LIST of Videos: https://www.patreon.com/posts/8239565This is video #15, include this when requesting attachments.HP Paper UPC: 884962 248607Product: CG988A

Build This Simple "Low Distortion" Signal Generator For Your Projects

Build a signal generator with better distortion specs than most on the market! It requires very few parts and is a great learning tool. Learn the Math, and some neat short cuts that will make you a pro in no time. See the attachments below for a Schematic and the Math "simplified." Follow along with your calculator, and you'll learn this in a snap.Patreon NEW LIST of Videos: https://ww...

Let's Build A Simple Transistor Tester, Matcher , and Biasing Circuit.

Two simple, and very effective circuits for the design of audio amplifiers. Build these circuits and have a very accurate way to match, test, and bias both NPN and PNP small signal transistors, Germanium and Silicon alike.Please note:Some of the resistors were not used in the parts list (2) due to a change in the supply Voltage. The test fixture Voltage was moved from 5 to 9 Volts during the produ...

Next Build Parts List: Video is above this Post ^

This is a parts list for the next build, some want to build along with the video, so this provides the time to source the components.Patreon NEW LIST of Videos: https://www.patreon.com/posts/8239565IN Short:A very versatile circuit suited for many purposes, much to be learned through this build. 2N3904 Quantity X5. (Only one used, 4 to compare.) 100K Ohms X1 1K Ohm X3 All resistors, 1/4 or 1/2 Wa...

1.5 Volt Oscillator and Breadboard "Traps" Explained. Transistor Testing Made Easy.

This video explains the complexities of working with breadboards at higher frequencies. The 1.5 Volt oscillator's function is explained, with an interesting way of looking at transistors. As usual, lots of information here, "You may want to take down some notes."Patreon NEW LIST of Videos: https://www.patreon.com/posts/8239565Check out the "Community" section for many great exa...

Newest Spoiler: 2 Video's on the way! Click on this title to expand.

Two video's are coming......Next Patreon Video: "IT'S UP!" Above this post.I will explain "in detail" how the 1.5 Volt Oscillator operates (last video.) I will also show the steps involved in figuring out the operation of the circuit, without even seeing it operate! This is a crucial step in learning "effective" circuit troubleshooting. You may even look at transist...

Build This Simple 1.5 Volt Oscillator.

This very simple 5 component oscillator will operate from a 1.5 Volt source, and light a super bright white LED, bright enough to be used in a small flashlight. Then we modify the circuit and make an led glow right down to .25 Volts with a standard pair of silicon transistors. Build this circuit on your breadboard and see what kind of results you can get, post your results below. I will re-visit t...

Understanding Transistors, FET's, and Using A Breadboard

Why Transistors and FET's get hot. Learn about prototyping on a breadboard and much more.Patreon NEW LIST of Videos: https://www.patreon.com/posts/8239565

Hey! A "Heads Up" for my Patrons.......

A new video will be up on YouTube this evening (Friday March 24) This was a request by many... (OK... I'm not spoiling it.)

Below this post! "Part 2"

The pictures in the last two video's look very similar. Lots of great information about total harmonic distortion (THD) diode ring detection, noise location in amplifiers, math calculations for open loop gain, closed loop gain, calculating global feedback in dB, amplifier bandwidth. See an old Tektronix 547 show off, looking at amplifier noise in the microvolt region and much more. Before and ...

MAAS 50 Audio Amplifier Redesign, understand feedback, bandwidth, and THD. PART 3

Join Paul through the entire redesign process of this MAAS 50 amplifier. Learn a few math short cuts to determine amplifier gain, and calculate global feedback. See the affects of feedback verses no feedback, and discover how it (feedback) lowers total harmonic distortion (THD) and widens the amplifier bandwidth. Some hints and tips included as well.Patreon NEW LIST of Videos: https://www.patreon....

MAAS 50 Amplifier Schematic for Part 2

Here is the schematic we will be talking about in part 2, involving this MAAS 50 amplifier. Those of you that download this schematic now will have a head start in understanding it's function. I'll also explain the function "piece by piece" in part 2 for those of you that may have a difficult time with the schematic. I will also attach this in the video part 2 as well.See you soon!...

Early Release for Patrons! Unique Tube Amplifier Repair

This video is part 1 of 2. This video will be publicly released on youtube in a few days. The second video will be a part of this course ,and only released to Patrons, (You.) Lots of neat information coming in the second part, the stuff you don't normally learn about.Patreon NEW LIST of Videos: https://www.patreon.com/posts/8239565Notes for Patrons:* This video is an early release for Patron m...

List Of Videos: Link Count: 232

Video 1: Thanks Everyone! Lets get started. https://www.patreon.com/posts/thanks-everyone-7821840Video 2: 50's Switching Power Supply, and Honing Your Inner Circuit Simulator. https://www.patreon.com/posts/50s-switching-7910277Video 3: Power Supplies To Audio Amplifiers, And All The Signals In Between. https://www.patreon.com/posts/power-supplies-8072225Video 4: My Worst Troubleshooting Experi...

My Worst Troubleshooting Experience!

Here is a horrible little part that took weeks to track down. The unit would work fine for about a week, fail for only a split second, then run for a week again. The worst part about troubleshooting an intermittant is.... There is no problem to troubleshoot when it's not failing. Fun times!This is a short video series that will randomly supprise you. These video's will show bizarre compone...

Power Supplies to Audio Amplifiers.

And all the signals in between.Patreon NEW LIST of Videos: https://www.patreon.com/posts/8239565

50's Switching Power Supply, and Honing Your Inner Circuit Simulator.

A few notes: If you would like to expand this post, click the large black title above. If you would like to leave your comments on youtube instead, click the white title "in the video." These video's are "unlisted" and available only to you and other patrons, they will not show up in the youtube feed.Patreon NEW LIST of Videos: https://www.patreon.com/posts/8239565