Lesson 7 Part 7 - How To Fix Just About Anything Electronic!
Added 2023-03-16 00:36:10 +0000 UTCAnother great circuit to use as a building block, add this circuit, (schematic attachment below) to your book of circuits. I will be releasing many more of my designed circuits (from my own book of designs) soon as well. In this circuit, see how memory works with one simple "off the shelf" IC, it really is just this simple. Use this design to make a neat display, or just build it on a breadboard for experience, (and impress your friends with lots of flashing lights.) Enjoy!
NOTE: If you're using the information in this video or attachments, building the circuits, and using your own test equipment, or any equipment, you are doing so at your own risk. If you do not understand this, or do not agree with this, Do Not use this information, IE: (The information in the video, and in any attachments provided,) and do not build anything.
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Comments
I'd love for you to publish all your circuit designs. That'd be fantastic.
kyle fafnis
2023-07-31 21:16:54 +0000 UTCAlmost everything works as it's supposed to except the flashing just before the reset. They all go off like they are supposed tp but they don't blink. They stay off until after the reset LED flashes. Any Ideas?
James Roberts
2023-05-13 00:42:51 +0000 UTCMy first car in high school 67 as well with 3 on the floor.
Phil DuRall
2023-05-11 00:18:42 +0000 UTCOne of my favorite cars!
Ryan Dunbar W1RMD
2023-05-03 00:17:20 +0000 UTCYes Paul the older Mercury Cougars had that sequential turn signal set up. I had a 67 Merc Cougar XR7 and it had them. I thought it was the coolest thing back when I was a teenager ! :)
Bob Sheldon Sr - KC9ITB
2023-04-06 03:35:40 +0000 UTCWatch that RF switching!
ted moss WA7VQR
2023-04-06 00:31:02 +0000 UTCLets not divide Ford up to much, they keep losing divisions. 😁
ted moss WA7VQR
2023-04-06 00:28:35 +0000 UTCExcellent. I am keen to make use of these building blocks to create some remote antenna swtiching systems. I was thinking high powered relays for KW voltage levels. The idea is to have multiple, highly optimized singleband HF half-wave verticals. Optimized with LC transformers tuned to resonance for each HAM band. Each verticial radiating wire element will share a common pole 12M or so high for 20M-10M to start. I'm hoping the switch between feedpoints remotely so only one run of low loss coax cable is required to the pole. Originally, I was thinking this was a bit ambitious, but after today's lesson, I no longer feel that way. Anyway, keep up the good work! Kenny, NZ5I
Kenny Manchester
2023-04-05 21:56:45 +0000 UTCWow, a lot of detail there Paul. Highly interesting though. Thanks for sharing,
Brian Wood
2023-04-05 07:33:08 +0000 UTCPaul, yes to the triac and opto iso expansion to this lesson. I've had problems with these circuits in the past and I'd love to have your guidance.
Carlos Chafin
2023-03-27 02:11:53 +0000 UTCPaul, does some clever teaching when he adds those green led's to show the set/reset sequence! It just gives you a visual aspect of the circuit...brilliant!
Delbert Rohrbach
2023-03-24 02:51:33 +0000 UTCLoving the counter/latching/switch circuits so I'm game for Triac and optocoupler.
Delbert Rohrbach
2023-03-24 02:43:52 +0000 UTCAdd my request as another vote for the triac and optocoupler circuits. Thanks Mr. C! I remember purchasing a 5-6" think book filled with circuits as these, but somehow got lost in the transition from my childhood home to where I'm at now. I used to love to look at the endless possibilities that could be built; just didn't have the $$ as a teen. That was even before I had any education and/or electronics knowledge.
David Olchewsky
2023-03-23 20:40:27 +0000 UTCAdd me in for the Triac and optocoupler. I think that would be a great way to get my mind integrating these lower voltage devices with higher load (line level) devices. And THANKS for all of this information.
dan sayler
2023-03-22 22:57:32 +0000 UTCLong story short, YES. All of this ties together. By getting some solder less bread boards and experimenting with the basics you will better understand how all electronics work and make anything else you do a fun instead of frustrating experience. Get or make a current limiting power supply and use a light bulb in series with questionable components. Being able to limit your current will save a lot of frustration and expensive parts going away. I used to be results oriented in my electronic en devours, but it's best to learn along the way. Good luck!
Ryan Dunbar W1RMD
2023-03-22 14:06:07 +0000 UTCI asked that already. He said it's so they go completely off when they are supposed to.
MeltDown
2023-03-21 23:06:23 +0000 UTCWhen I look at the datasheet for the CD4043B, I only see the typical and minimum values for IOH (OUTPUT HIGH (Source) CURRENT), around -1 mA. I calculate yours at 4 to 12 mA depending on the LED. Where do you find the max IOH value on the datasheet?
MeltDown
2023-03-21 23:05:20 +0000 UTC+1 for circuits involving the Triac and Optocoupler. Another great lesson, Paul. Thank you. While I did watch the video, I have not been able to build the circuit because I'm still waiting for my CD4043 to arrive. Placing small orders for such parts is expensive in terms of shipping. It would be great if we could get a heads up on special parts that we will need for the next few lessons so that we can place a single order to take advantage of combined shipping. Would that be possible, Paul?
Frank B.
2023-03-20 17:39:35 +0000 UTCVery nice, however, not to be pedantic but, it was not Ford that made the Cougar, it was Mercury, a division of Ford. Kind of an upscale Mustang.
Rocco Rizzo
2023-03-20 11:38:40 +0000 UTCThank you, Delbert. Appreciated Sir.
ShadowMan 427
2023-03-20 01:24:26 +0000 UTCI select what interests me first. If I want to know more about amplifiers, then I'll focus on videos pertaining to that. Currently, I'm partaking in his new series and focusing on that portion and even referring to older videos in relation to current focal points. I would suggest start from the beginning of the new series....seems to be a great starting point.
Delbert Rohrbach
2023-03-20 00:51:18 +0000 UTCHello to everyone! My name is John and I am a new patron here. I have been watching Paul's videos over on Youtube for some time now and decided to join here at Patreon. It is obvious there is a wealth of electronics knowledge here for me to ingest. My learning curve will be straight up which is what I prefer. I am an ASE Master Certified Automotive Technician of 40 years with a solid background in automotive electrical/electronics systems. I am looking to expand my knowledge of electronics to other things outside of automotive and would like suggestions on where to start here at Mr. Carlson's Lab. Is the best suggestion to start at video #1 and watch all 163? If so, then that is what I will do. To Paul and others here. Thank you for the opportunity to learn.
ShadowMan 427
2023-03-19 02:32:37 +0000 UTCPaul, please add the triac & optoisolator circuits!
Bob Vines
2023-03-18 22:27:05 +0000 UTCHi guys, do anyone a extra board for the capacitor leakage tester that they dont need? I really would like to have one, but i have never made a board before, and would rather buy one.
Alf david fjeld
2023-03-18 15:49:14 +0000 UTCThanks Mr. C - would love to see the triac circuit;
Ernest Mueller
2023-03-18 11:53:48 +0000 UTCI would also like to see the opto-coupler and Triac circuit for controlling high power lights.
Sheldon Butler
2023-03-18 02:47:58 +0000 UTCI would be interested in zero crossing circuit similar to the one you used in your refrigerator repair video on you tube. The one that helped prevent premature failure from arcing at other than zero voltages for the relays.
James Cox
2023-03-18 00:07:42 +0000 UTCThe challenge will be to mimic this project with a different IC. The 4043 is easy enough to get online but will either take 4+ weeks from China or 1 week from Mouser - but $24 postage - expensive chip. Local companies (Australia) just don't carry the part.
dhi67540
2023-03-17 22:38:03 +0000 UTCAnyone know why there are 10k resistors are in parallel with the leds?
David McAnulty
2023-03-17 20:36:44 +0000 UTCHi, next to some 630V values I ordered some ic caps that have a lower voltage rating but are cheaper. f.i. 473MPW160K 104MPW160K 223MPW160K
Dd2235
2023-03-17 19:00:02 +0000 UTCThanks again for another great Video. I really enjoy how the single parts come together here, really cool. And I would be very glad to learn about triacs and zero crossing. I don't know if I am the only one who also like to see a more detailed explanation of the cd4043 memory chip or similar of those memory chips in general, how are they working, what has to be taken into consideration when working with them and such things.
DrHumberto
2023-03-17 16:49:11 +0000 UTCHi guys. Im wondering if anyone have any experience with nichicom phc series film caps? Im planting on buying in some caps, and the yellow illinois caps is a bit expensive at least in some values, and the nichicons looks to be chesper
Alf david fjeld
2023-03-17 10:14:02 +0000 UTCVery nice! Thanks, Paul. +1 for the triac.
Robert Calk Jr.
2023-03-17 09:59:03 +0000 UTCI was thinking a person could do a door security lock system with the inclusion of reed switches with these circuits.
Delbert Rohrbach
2023-03-17 06:53:59 +0000 UTCThat's awesome that Paul's going to do the amp circuit too! I really like the idea of learning both.
Delbert Rohrbach
2023-03-17 04:53:59 +0000 UTCYes please triac/zero cross
Tim Perfetto
2023-03-17 01:52:04 +0000 UTCPublish them!! The new Forrest Mims!!
Barry Ballenger
2023-03-16 23:34:10 +0000 UTCSometimes the simple stuff is the hardest. I had to pause the video and stare at the schematic for a few minutes trying to reason through how exactly those top 3 transistors do what they did. I got there eventually, I think. Unless I'm wrong: 1. The switch pulls that part of the circuit to ground, thereby nullifying the effect of the 10K resistor that was otherwise pulling the base of the bottom two transistors high. 2. Current can now flow through the top transistor's emitter-base junction and into the emitter-base junction of the next one down, then to ground, which turns on both of those transistors, thus allowing current through the emitter-collector junction of the top transistor, powering the LEDs via the diodes/resistors. 3. The current through the LEDs then flows through the lower transistor's emitter-base junction to ground, which also turns on the transistor and lets even more current flow through the emitter-collector junction to ground, lighting the LEDs. Do I have all that right?
Circuitmike
2023-03-16 17:57:21 +0000 UTCYes! He had some bigger ones, too. I learned a lot of basic electronics from those.
Circuitmike
2023-03-16 17:52:57 +0000 UTCWould like to learn how to implement the Triacs
Adriaan Diedericks
2023-03-16 17:23:53 +0000 UTCCould a similar setup with a CD4043 be used for the capacitor tester project to drive the LED's instead of the hard to find LM3915?
Edward LaRose
2023-03-16 11:28:13 +0000 UTCI would like to see the triacs added.
Xaksin
2023-03-16 08:23:56 +0000 UTCYep, got all of the Forrest Mimms books. They have lots of great little circuits.
Ed
2023-03-16 05:18:45 +0000 UTCIF you ever put out the book, I'll buy it. I remember Forest Mimms had some little "handbooks", Radio Shack sold them.
Tom Harris
2023-03-16 04:48:36 +0000 UTCI am here for the duration so take this class anywhere that you would like. Please stay in the beginning stage for a while then we can progress to the next level. As you are planning these classes and we are going forward update our parts/component list.
Scott Smith
2023-03-16 04:28:22 +0000 UTCIn the sequential counter if you wanted 100 LED's to light would you stack 20 of the Johnson counters?
Scott Smith
2023-03-16 04:21:52 +0000 UTCNone that I can see as the 4017 clock is edge triggered.
James Korman
2023-03-16 03:09:54 +0000 UTCWhat is the significance of a 50% duty cycle - surely we are using the 555 as a clock pulse so any duty cycle would work - no?
dhi67540
2023-03-16 02:50:57 +0000 UTCThey make sure the LED's are totally dark. Less efficient LED's may not need them, but I would install them anyways.
Mr Carlson's Lab
2023-03-16 02:17:30 +0000 UTCWhat do the resistors in parallel with the 4 output LEDs do?
MeltDown
2023-03-16 01:52:23 +0000 UTCLoving the step by step process from simple to complex. Just what I am after.
Mark Rabone
2023-03-16 01:40:10 +0000 UTC
