Look over Mr Carlson's shoulder as he troubleshoots and repairs the display section in a Sansui power amplifier. Learn about using a signature tracer for incredibly fast troubleshooting of electronic circuits and components.
Пікірлер: 529
@MrCarlsonsLab5 жыл бұрын
Learn about electronics in a different and very effective way, and at the same time, have access to Mr Carlson's circuit designs! Go to Mr Carlson's Patreon page, click here: www.patreon.com/MrCarlsonsLab * (EDIT) UPDATE: New Curve Tracer video just launched on Patreon!*
@petroldevo99345 жыл бұрын
Good video ! I remember building a V.U. meter in high school electronics. It too used the LM399 chip, but it used leds instead of a VFD. The front end used the LM324 chip to clean up the signal and provide the different frequency spectrums.
@petroldevo99345 жыл бұрын
@Dave Micolichek I guess it was called a frequency spectrum meter. I guess I wrote the comment wrong. Thanks.
@petroldevo99345 жыл бұрын
@hvacr tech you should see my work benches !
@joseacevedo28225 жыл бұрын
Mr Carlson's Lab pretian
@aubreymohan65445 жыл бұрын
Mr Carlson's Lab patron
@jeroldlawrence51864 жыл бұрын
Awesome job Paul. I’m 68 years old and I can still learn new tricks.
@warrenosborne60443 жыл бұрын
In the true tradition of the Ham community, you share your hard-earned knowledge. Thank you. My dad and I made a curve tracer out of an old Heah Kit scope I think it was 65 or 66,, really foggy memory.
@jerryhiggins481610 ай бұрын
Watching these sessions has been such a blessing to my sanity. He's reminding me of so many things I have forgotten. I wrote him a nice long note telling him he was not only fixing equipment he's helping me as well.
@MrCarlsonsLab10 ай бұрын
Thank You for your kind feedback Jerry.
@rsc4peace971 Жыл бұрын
You are like the "ELECTRON WISHPERER" it is as if you read the device's minds 🤣🤣. I have watched and been learning so much from your channel and never failed to be amazed at your in-depth knowledge of electronics and expert skills at fixing the problems
@kardeef333175 жыл бұрын
I highly recomend Mr. Carlsons patreon class. You will in my opinion learn 10 times more then taking a formal class, at such a tiny price I can afford it .He does examples in point to point, surface and through all, sometimes making the same device those three different ways enabling you to better understand each process. He also shows you the pit falls and how to do it safely for you and the equipment your working or learning on. You also gain valuable experience learning the testing equipment he shares , building and explaining them in laymens terms . Thank you again for sharing your experience and knowledge Mr. Carlson. Cleveland P.
@MrCarlsonsLab5 жыл бұрын
You're very welcome Cleveland!
@1013redoak4 жыл бұрын
Your videos typically make me feel stupid but I love watching them and seeing a genius at work!
@tdubyah43583 жыл бұрын
Every single video, no matter what year, the same volume! Outstanding!
@Silent-Lucidity2 жыл бұрын
First of all, I admire the work you do. I've watched your content multiple times over. Matter of fact, your content often reminds me of my English teachers. I was famous, or possibly infamous, for adding extra words to my sentences. And here you are, one of the most intelligent people I have ever seen, and you do the exact same thing! You add "as well" to many of your sentences! It brings me much joy!! I'd like to go back to my English teachers and tell them that the smart people do what I do... "as well"!
@peterlarkin7622 жыл бұрын
That schematic is a thing of beauty.
@restorationsofmusicsystems86094 жыл бұрын
I follow you from Istanbul. Everything is great. Thanks to your excellent English, I improve my English and improve my amateur electronic hobby every day. Thank you very much.
@davidrau643 жыл бұрын
i've studied electoincs in the past , and i was working on my home work at a gas station when a guy saw me doing it .. he took me under his wing and gave me my first job repairing monitors for compugraphic computers , but i wanted to brush up on stuff and mr carlson you are very very informative, taking me back to my electronic coarses and my teachers , but you sir are the best!!!!!!!!!!!!!!!!!!!!!!!!!! i did have a huntron 2000 curve tracer but had to sell it years ago when times where tough , but now im building a curve tracer and have renewed my passion for electronics
@Godzilla2k695 жыл бұрын
40 years of electronic troubleshooting and you STILL teach me something new !
@groopmmex3 жыл бұрын
Great, it's like school... but it's coooooool school! There is so much info you are so generously putting out in these videos, it's really quite something; and so, a gracious thank you is in order. Thanks dude!
@MrCarlsonsLab3 жыл бұрын
You are very welcome Mike! Thanks for your kind comment too.
@malcevans57624 жыл бұрын
Mr Carson Sir . I am 62 years of age and a lifelong Electronics Enthusiast . I have learnt more in the Two years or so I have been following you than I did in all the preceding time. Thank you so much .
@vinceotten1293 жыл бұрын
Thanks, Mr. Carlson! You keep showing me more uses for the Signature Analyzer (known as “Component Test” on my scope). I appreciate how you cut through the complexities to show us simple ways to troubleshoot.
@oloilmann42884 жыл бұрын
Finally someone who knows this stuff and is willing to help us. Thank you Mr Carlson!
@Phil_Trujeque5 жыл бұрын
“Enjoy” is a *massive* understatement! Thank you, Mr. Carlson! 🍎
@fickfehler38663 жыл бұрын
If you were my neighbor, I would sign over a debit card because I would be bringing so many things for repair. So much vintage audio fetching big bucks, so little experts like you ! Having a hell of a time finding a tech for a Marantz 2600. Likely output relays, but a full diag / restoration is desired.
@woodywoodlstein95195 жыл бұрын
That thing would have really made my eyes light up back in the 80s. Probably one of the nicest schematics you’ve shown us.
@EngineeringVignettes5 жыл бұрын
Looking back as a young tech working on home stereo and TVs in the late 80's/ early 90's I can look at that Sansui schematic and really appreciate it. A work of art compared to today. Nice job finding the faults. Cheers, - Eddy
@cletusspuckler22434 жыл бұрын
I've worked as a technician too, in this years, vintage hi-fi equipments where well and build for durability, not "buy, use and throw away" as nowdays ! The oldest hi-fi system i own, is 45 years old, it's a "compact studio" designed German device ( really current in the 70') , still works, but certainly needs à serious reconditionning ( recap, and readjustments..).
@scottodonahoe95052 жыл бұрын
Still have Sansui speakers from when I was i was in high school in the 70,s and they still sound awesome !
@CoquiAudio5 жыл бұрын
with all my respect I think is time for Carlson to have the camera pointed more at him than the equipment you have it is impressive that you have all that but equipment without a user is just a bunch of gizmos with no user just have a view of yourself, people might think that you are just showing off you know what I mean? you are the most important person and you are the one who deserved to be on the center of the screen than the equipment by the way I love your channel :)
@RoadTripEddie2 жыл бұрын
I had one of these. One of the cleanest sounding lower power amps Ive ever had. Wished I'd kept it. It was a gift to me from someone cleaning out there garage. I had 8 good heavy hard use of years out of it.
@RoughJustice2k185 жыл бұрын
Mr. Carlson makes even the most complicated faults look so easy to fix. Thanks for this great and informative video.
@ke4est5 жыл бұрын
A new Mr. Carlson's Lab video!!!! Best day this week!!!!
@patprop745 жыл бұрын
IKR ! I already hit like even before watching knowing its going to be good regardless.
@ke4est5 жыл бұрын
@@patprop74 Same here!!
@woodywoodlstein95195 жыл бұрын
patprop74 Same
@--Zook--5 жыл бұрын
I recently had to diagnose a no start electric motor on a 1981 Singer furnace in one of my rental houses. I am not a hvac tech, or electrician by any means but have learned enough in my 43 years to get me into trouble. I was extremely impressed by the schematic neatly tucked inside the furnace that made it very easy to repair. I wish more companies did this today.
@tallperson94224 жыл бұрын
Even though I don't understand much about electronics I find these videos fascinating and addicting.
@marklowe74313 жыл бұрын
I'm impressed you can say solder correctly. There's a lot of soddering going on south. The tracer is gold. Great video.
@nevillegoddard49662 жыл бұрын
Soddering! Lol! Sounds funny! Is soddering carried out by sods or sodderers? Cotter keys instead of split pins!
@chaddonschaddons70845 жыл бұрын
Awesome watching how simple and straightforward you work. Thanks for the great vid.
@dave-d5 жыл бұрын
Thank you so much for sharing your knowledge with us. Always a treat to see one of your videos. Very interesting to see the curve tracer at work.
@Shmbler5 жыл бұрын
How I love your silent intros! They really make me look forward to the show.
@donmoore77855 жыл бұрын
Our electric shop teacher in high school taught us to use a signal tracer. Never used one since, and your video shows me what I have missed.
@abc-ni9uw5 жыл бұрын
This is just up my street. As usual no matter what content Paul provides for us I love it all. Good to see you your looking very well
@MrPsychodeejay3 жыл бұрын
Greetings from the UK! Love watching your videos! I had a Sansui A-60 Amplifier which was at times problematic but i drove my parents crazy blasting out my 'boom boom music' I miss those days!
@barneyboy77715 жыл бұрын
Excellent video, nice clear shots. Very easy to follow. Best part, no music. Thanks.
@bijouxbijouxbijoux5 жыл бұрын
And another top notch video Paul ♥ And yes, THAT'S what I call a schematic!!! SO NEAT, amazing job indeed by the tech at Sansui, hats off to them !
@goose300183 Жыл бұрын
Very cool trouble-finding method! Made me realise I should be doing more of this. I have a Hameg HM604 with a 'component tester' built into it - basically a rudimentary curve tracer. It's strange, I never thought to use this to find problems with in-circuit parts before. In my mind, it was just there to test desoldered parts and invdividual components of dubious history or origin. Turns out I was pretty much completely unaware of the very powerful circuit diagnostic tool I had been sitting on! I'm aware of the possibilities now, thanks! That old CRO is going to be warmed up more often at my bench now.
@brucecook20534 жыл бұрын
Excellent video Mr Carlson. Full credit to you for your patience and intuitive personality. I really enjoy your videos. Thank you.
@ClassALiving5 жыл бұрын
I'm learning so much from this guy, love these videos :)
@derofromdown-under28325 жыл бұрын
Once again, excellent trouble-shooting and procedure. Outstanding... 10/10
@VinylRundown3 жыл бұрын
I found this amp on the road. Hooked up to my desktop speakers. sounds good but intermittent channel issue. Great video.
@chrismarkland89044 жыл бұрын
Hello, you have great and informative videos! I have been fixing electronic gear for over 35 years and still pickup some new tips and tricks. I have a very old Tenma analog oscilloscope that has a "Component Tester" built-in which runs the scope in a sort of "X Y" mode and looks and works just like your signal tracer. I get all the same readings when looking at Transistors, diodes, regular and zener. I thought I was going to get rid of the old analog after purchasing my Digital storage O-Scope but it is still very useful for a few reasons. Keep up the good videos!
@pabloosvaldopenizzotto10984 жыл бұрын
Amazing video. Love the way you have explained every single step and love the tools you are using. Signal tracer is great!! The curves looks like an scope working in XY mode.
@glenngoodale17095 жыл бұрын
I love listening to your show always extremely informative and always spot-on thank you for the time that you spend and creating it and producing it for us greatly greatly appreciated again
@MrCarlsonsLab5 жыл бұрын
Thanks for you're kind words Glenn!
@mikeharnett24105 жыл бұрын
More mysteries explained, I love it. Thanks Paul.
@steveperry94465 жыл бұрын
Loved the video. I haven't used a curve tracer since I was learning electronics back in high school. Thanks so much for reminding me what a powerful tool that can be in troubleshooting components.
@djnottttt5 жыл бұрын
Just found you. Don't understand anything you're saying. But I couldn't shut you off. I loved it. I can't imagine the experience and education for what you do.
@MrTonmit5 жыл бұрын
We love you Mr Carlson... so methodical.
@royelectrotechnic87115 жыл бұрын
I'm so amazed this troubleshooting. Thank you Mr Carlson. And I'm seconded to Mr Cleveland for highly recommend everyone to take electronic course on patreon. If you have a few knowledge in electronics it will accelerated through this course, what are you waiting for? The magic revealed in there!
@Alasdair-Morrison5 жыл бұрын
Always eagerly awaiting your tubes! *So professional Well laid out and informative*
@jasonbrindamour9035 жыл бұрын
HAHA, I was working on a project by myself today and caught myself saying "sodder" instead of "solder"...LOL, I corrected myself as I talked to myself reminiscing of the vid in which you explain why you are sure to pronounce the "L". Just something funny I found myself doing today. Thanks again for being one of those teachers that really stand out as being a great teacher. Cheers to you Mr. Carlson.
@HaleiwaSam5 жыл бұрын
Aloha Paul! Another fantastic video you never cease to amaze me with your vast knowledge. I learn something every time.
@etelmo5 жыл бұрын
I loved the new picture in picture, it's a fantastic addition.
@hpelisr5 жыл бұрын
Nice piece of testing equipment, Very easy to understand how it works. Thanks for all of the knowledge,love your work.
@ciscolm3 жыл бұрын
I'll never be able to use all this knowledge from you but so informative and easy to grasp how you explain things, thanks
@billk57275 жыл бұрын
Mr Carlson's Patreon class is hard to beat! Bar none.
@anindyamitra50915 жыл бұрын
The VFD displays are just nostalgic! Their tone, dullness and the colours just can't be replaced by 32 segments LED displays.
@richardross38155 жыл бұрын
Thank you Mr Carlson. Very nice neat little video. Just goes to show the 70's rocked....lol... even the schematics were better.
@glennk19313 жыл бұрын
I am fascinated with your videos. Absolutely brilliant, and professional. Thank you. 👍
@kylesmithiii61505 жыл бұрын
I am impressed. Quick and easy, after seeing that! You're very competent and professional. Kudos!
@cookselectric2 жыл бұрын
Sold these amps in a stereo shop worked at in the 80,s… we changed out the last 5 green leds in the peak meters with yellow and red to give it that “extra cool” look to get the sale! Lol
@Satchmoeddie5 жыл бұрын
Beautiful hand rendered artwork, with a gorgeous VFD up in front!! AWESOME! I put a new non-standard VFD in one of those 1980s Heathkit synthesized output ham radio transceivers. I remember getting a free tiny CRT television AM FM SW CB radio for attending a sales pitch for a time share in Nevada. The schematic for that is a thing of beauty! Wave forms galore, signal paths, diagrams of every component and even a quick guide to the most common problems. That RCA scope reminds me of "The Octopus" test circuit for an O Scope. OH HO! IT IS AN OCTOPUS & A Sine WAVE GEN ON AN OLD RCA Bread n Butter scope!
@shrievy5 жыл бұрын
Picture in Picture, awesome! Fantastic as always.
@harrystevens38855 жыл бұрын
The best never rests....Looking forward to this.
@whitelightning25 жыл бұрын
It's nice to see someone else using a tracer. I have the privilege to have a newer Huntron on my bench (Company purchased) and I really do use it at least once or twice a week. Keep up the great work!
@gtoger5 жыл бұрын
I've got one of these amps. Still sounds great! Have never had this issue with it.
@Alex-yk6he2 жыл бұрын
Hmm i like your channel
@dropdatabase82245 жыл бұрын
Thanks Paul. Another excellent video. I learn something new every time.
@networkmidget5 жыл бұрын
I always learn a lot from you. Outstanding. Thank you sir!
@diegodistefano45943 жыл бұрын
beautiful power amp!! I love Sansui. Nice video. Thanks
@niczoom3 жыл бұрын
Great job, i really enjoy watching these videos.
@garybevis86915 жыл бұрын
Hi Paul, great repair job and video. I love how the curve tracer works so well to find a faulty component(s). I notice that you have moved some gear around in the lab. :-P I see (and hear) you are using a different desoldering tool. It doesn't sound as robust as your revved up Hakko 470 does. That thing really growled. I also am impressed with the quality and attention to detail in the Sansui schematic. With modern electronics CAD programs, there is no reason that that level of detail (including illustrations of the components) could not be included in every schematic with the press of a button. It took designers countless hours of hand drawing to create those schematics in the 70's and 80's. So there is no reason to not make "good" schematics. Thanks again so very much for the videos and the graduate level education you provide the youtube community!
@MrCarlsonsLab5 жыл бұрын
Thanks Gary!
@RoadTripEddie2 жыл бұрын
That is the coolest fastest de-soldering tool. Even at 1x speed. Super cool
@cdx873v5 жыл бұрын
Golden! Can't wait to have the time to check out the projects on the patreon!
@truck9moon1005 жыл бұрын
I know what you mean about quality. I have a AU-9500 Sansui from 1975. Still performs like it did back in the day. The cover has never been off, till last week. I sprayed the pots. Thanks for the video Paul.
@paul-c75415 жыл бұрын
Excellent Paul , as always
@MrCarlsonsLab5 жыл бұрын
Thanks Paul!
@Georges-MILLION5 жыл бұрын
Toujours aussi plaisant et instructif de suivre tes vidéos ! Merci pour le partage ! Always so fun and informative to follow your videos! Thank you for sharing !
@MrCarlsonsLab5 жыл бұрын
Thanks George!
@dixonqwerty3 жыл бұрын
Oh man. I loooove watching your videos Mr Carlson!! I know nothing about the stuff you do, but you sure make it very interesting with your excellent way of explaining and going through parts and telling about it's functions. Your knowledge is really impressing. And I also love the looks of the tech you restore and fix. Knobs, meters, buttons and all that sweet stuff! Greetings from Sweden Mr Carlson.
@MrCarlsonsLab3 жыл бұрын
I appreciate that!
@amirgoldline3 жыл бұрын
I love these videos thank you sharing your knowledge and experience
@kostak.24854 жыл бұрын
Another great video! Thanks for posting!
@prezillogic92304 жыл бұрын
another incredible video cant wait for the next video
@graemebrumfitt66685 жыл бұрын
Great vid Paul, you always make it look sooo easy but I guess it is for you :) fast diagnostics and repair loved it TFS G :)
@RBSVader5 жыл бұрын
I'm a proud owner of Yamaha CX-1000/EQ-1100/MX-600 combo...but this machine IS BEAUTIFUL. I want one already.
@chaddumas24995 жыл бұрын
Mr. Calson's Lab has inspired me. He is a great person to learn from. I have inherited some old radios, a Philco 96 Highboy, and a Zenith 8A02. I have played the Zenith until the dial belt broke. Don't criticize yet, I didn't give a second thought to leaking wax caps until recently. I'm now starting the restoration process on the Philco, and hope to have it playing by Christmas. The Zenith will soon follow. Thank you, Mr. Carlson, for the inspiration. It will be nice to listen to BBC on short wave again.
@MrCarlsonsLab5 жыл бұрын
You're welcome Chad!
@specialtooth35975 жыл бұрын
Very well done, always informative... Thanks for posting.
@alastairchestnutt64165 жыл бұрын
another great presentation and troubleshooting video. Thanks
@unlokia5 жыл бұрын
Paul, as a teenage TV & VCR repair apprentice, in 1991, I remember being given LOTS of old VCRs, and smashing the fronts off the VFD displays and strumming those steel wires like a mini guitar - I still remember the sound and the smell of the "getters" :-) hah
@MrCarlsonsLab5 жыл бұрын
Those poor tubes.. LOL.
@cletusspuckler22434 жыл бұрын
Vacuum tube displays were currently used on hi-fi devices, videotape recorder, and kitchen appliances too ( programming displays on hight end microwave ovens.)
@gapadad25 жыл бұрын
I always learn something. Thanks for making the videos.
@elluisito0005 жыл бұрын
Hello! My father still have this same Sansui device back home, a lot of memories :D
@themetalmicky4 жыл бұрын
absolutely love your videos, thanks
@egomezmx655 жыл бұрын
Awesome video Paul!!! you are a genius in electronics, I'm also looking forward for the vedolizer video.
@izzynutz20005 жыл бұрын
A couple of General Motors cars had vacuum tube displays as such and I used to repair the dashboards in the same manner very nice tutorial
@IrreverentSOB5 жыл бұрын
great channel, one the best of it's kind !
@MrCarlsonsLab5 жыл бұрын
Thanks Victor!
@mikeprice23115 жыл бұрын
Great video as always Paul. What a wonderfully stereotypical (pun intended) piece of 80s gear. More circuitry dedicated to the blinkenlights than to the actual amplification. I have an '89ish Sony component system that has separate custom VFDs for everything from spectrum analyser and tuner frequency to a diagram showing the state of the CD changer. I don't use it, I just keep it as a reminder of when we felt we needed flashy lights and screens for absolutely everything.
@chefbink615 жыл бұрын
Another great vid Paul!! Thanks
@MarkSeve5 жыл бұрын
Informative as always. Thank you for sharing sir.
@jdekong39455 жыл бұрын
Great video Paul
@playbackvintagehifihunter96692 жыл бұрын
Just aquired the complete set inc the preamp and tuner. Beautiful looking.
@nevillegoddard49662 жыл бұрын
Aw maan that must be awesome! You lucky guy! What speakers are you using? I built myself a pair of 'fullhouse' Majestic speakers from the Aussie 'Silicon Chip' magazine. Massive monoliths with subwoofer bass! Cost me nearly $3k but I couldn't be happier. They go perfectly with the Ultra-LD mk4 integrated amp I also built.
@arsimahmetaj62725 жыл бұрын
Another amazing Vlog , Mr Carlson you keep out doing yourself . Your friends from newvyork