Master Electronic Alignments!
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- เผยแพร่เมื่อ 28 ต.ค. 2020
- Lot's of knowledge shared regarding alignment procedures in this video. For links, click the SHOW MORE tab below.
To learn electronics in a very different and effective way, and gain access to Mr Carlson's personal designs and inventions, visit the Mr Carlson's Lab Patreon page here: / mrcarlsonslab
#learnelectronics #masterelectronics #electronicvideos - วิทยาศาสตร์และเทคโนโลยี
To learn electronics in a very different and effective way, and gain access to Mr Carlson's personal designs and inventions, visit the Mr Carlson's Lab Patreon page here: www.patreon.com/MrCarlsonsLab
Question, why could you not use a Function Generator? My Siglent SDG5162 can do 455KHz and modulate at 400Hz. It can NOT go down to 100uV range, but you can slap the output through a 40dB attenuator (/1000).
BTW, really great video! Thanks for the education.
Ive used a function generator at times but the results were no great, too many harmonics . You need a good LC style oscillator to start with. The sweep control range as unstable too. Function generators are nice but made fir Digital or audio circuitry. RF is its own mysterious world.
TH-cam should install a giant thumbs up icon, the regular one is way too small for your channel.
Mr. Carlson, thanks for taking the time to explain and showing us how that alignment is done. I enjoyed it very much.
You are very welcome
@@MrCarlsonsLab
I was willing to see where the probes of the spectrum analyser were hooked up with the radio receiver.
The best way that I can spend the lockdown. Increasing my knowledge of electronics with one of the best teachers around. Thanks Mr. Carlson!
If Bob Ross was an Engineer. Thanks Mr. Carlson for all of these incredible videos.
happy little tubes 🤗
Im building a small collection of am tubes radios from the 1940's and 1950's.i bought a used heathkit ig102 rf generator to learn this kind of adjustment.this video is super clear.well explained..i learned a lot...
Mr. Carlson: your calm and exact explanation of the alignment process, makes me think you have reached the Zen level electronics mastery. Keep this in this way, it's very enjoyable!!!!
Thank you for making this by our requests :-)
It was a pleasure to watch a professional at work, thank you for making this video from our requests
Mr C can't thank you enough for this one! So educational for me at least! Thank you for sharing your knowledge and expertise on this subject! I'm 70 and still going to school! I love it!
Way to go!
Thank you Mr. C. 50 years ago, I was a kid, going with my dad to various 2 meter repeaters in Maine and New Brunswick. Sometimes there were just 4 of us and I watched them set up and powered the new rig. We had a 50Kw AM radio station - CFNB - and when it switched on high power - it washed out a lot of stations. Still - we had a 100 ft antenna and i enjoyed searching the dial for stations in the US. The further - the better. And as the evening went on stations would come in and go. Cheers to you!
I can't say how much I enjoy these videos. Watching the process of tuning is a great classroom and helps me greatly as I learn about these old radios. Well done, Mr Carlson!
These radios take me back to before I started working for Marconi Instruments, just north of London. I noticed in your vast collection of test equipment a Marconi 2955B Radio Comms Test Set, which was one I had to setup and repair. Other equipment I was involved with were, 6969B, 2022, 2945, 2440, 2305 and many others. I'm now retired, but still making radios, which is my great love. Thanks for the great videos, which I greatly enjoy watching.
That is a great mike you use in your introduction!
Your old radios bring me back to my childhood in the 1950s we had an old wooden cased radio that got short wave and we listened with fascination!
The amplitude and quality of those signals at the end is testament to your work. Its always pleasing to peak out a radio with a signal generator at a seriously low input and watching huge results on a VTVM.
I fully agree with all the previous comments to this one and just want to say a great big thank you for going over some basic procedures, this was great, thank you.
It doesn't get any better than this ! Excellent alignment thanks
Thank you! I have over 35 years experience building/repairing/designing and modding guitar effect pedals, and about 25 years experience doing the same with tube guitar amps. Outside of this narrow bit of electronic knowledge, many things are still a bit of a mystery to me. Your channel has taught me a lot about radios a test equipment. Thank you for sharing your knowledge and experience!
What a comprehensive tutorial on the receiver alignment, your comments and information are the best I have ever experienced! Outstanding, Louis
Thank you Mr. Carlson. I can't imagine the number of hours of joy and wonderment radios like that brought to families world wide.
Thanks very much Mr. Carlson! Many asked for this video and I am truly impressed how quickly you responded. I look forward to more of your videos!
I first studied this in 1977. THANK YOU for the refresher course!
Just awesome. I really appreciate your explanations in simpler terms and filling in the blanks where the manufacturer documentation makes assumptions that one already knows more common details, which the amateurs may not. Big thumbs up!
Thank you Paul for being prompt regarding our request for compiling, and uploading a video dedicated to AM radio alignment: very much appreciated.
I found, when you started the peaking process, you began at the 1st IF, or IF transformer associated with the frequency changer, very intriguing since it makes sense. I was taught that it was not always beneficial to set the output on the signal generator to less than 200mV. I now have a more clear idea as to why I was taught that. I was also taught how to apply the sweep method but have not used it for several decades. The test equipment in most of the television and audio repair shops I was employed at was largely old, poorly serviced, and none too accurate. For most of the time, radio, and television alignment (if one was warranted) was little more than a ‘quick peak-up’. ‘Revenue’ was the most most important word in the domestic electronics servicing industry ...”get it working, and get it back to the customer!” Now I’m retired, I want to refine my electronics skills so I’ve made my mind up to begin by re-familiarising myself with the sweep method since I’m reminded of its benefits. There are many other areas within electronics where I intend to focus attention on refinements.l
For me, this has certainly been a very inspiring video: I’m further encouraged to become more motivated, and determined. Once again, thank you very much my friend.
Best regards, Phil. P.s, might you upload videos where you restore, as well as do an in-depth alignment on a VHF valve radio sometime in the near future?
Thanks for your kind comment Phil. I have VHF receivers and transmitters on the shelf (Gonset, Eddystone, Heathkit, and so on.) So some are in the plans.
WOW! What a receiver. Very sensitive and pulling in a lot of stations. Great job on this one. I enjoyed it. Thanks for sharing.
THANK YOU Paul - that cleared up more than a few points for me ... I need to try out to cap off my confidence. I really appreciate your side descriptions too (like agc operation, among others) - takes out of the realm of being just a cookbook. While I don't have a spectrum analyzer (I doubt many here do), a video on the visualization method can only add to our understanding - so bring it on!
Paul, in the (very) unlikely event this electronics stuff turns out not to be your thing, you have a brilliant career ahead of you being a DJ for an easy-listening radio station. Your mic and voice are perfect ASMR! Keep up the great work we love every video you put out!
Mr. Carlson is the Albert Einstein of electronics. Thanks so much for making these videos, so interesting, even for the lay-person like me.
Wow.... I couldn't have asked for more.... After making my request for this alignment procedure video, your explanations were very informative, this was one enjoyable lesson for us, lots of information to absorb and reason with, ... And you showed how using modern precision equipment can affect your alignment, and how to deal with going too far in an adjustment, this was a great instructional video, I hope you continue with the future projects. You spoke about on this subject. And me personally.... I really want to join your patreon classes, I have many little projects that I've collected, that probably need simple repairs, Once you find the defective part, it will happen as soon as I can arrange it...
Looking forward to video alignment video with sweep generator and oscilloscope. Thanks for making these videos!
Thanks for another awesome video, Mr. C! Even though I thought I had a good grasp on aligning AA5 radios, you still managed to offer some nice little gems. Seeing alignments done on different radios and from a variety of perspectives, using different tools is really useful. You provide such a wonderful service to all of us. Thank you.
A video that I'd like to see would be focused on AA5 loop antennas, their designed length, number of winds, rebuilding/replacing them, and anything you can think of to add. I had an old Crosley that had no loop antenna, and I couldn't locate a Crosley replacement. I could have just used a long external antenna, but I really wanted the radio to be complete with an internal loop antenna. Therefore, I decided to build a replica but really struggled to gather all of the necessary information from a variety of sources. It seems to work ok, but I suspect it's still not quite right. I think you could do a wonderful job explaining everything we could want to know about AA5 loop antennas.
Mr. Carlson tnx you for sharing your expertise and in a super understandable way. Whoever aligned you did a great job and is owed a great debt of appreciation. I'm greatful for being aligned and peaked by your most valuable and effective videos. You're the greatest. Thank you.
Hello Paul. This is a great lesson on alignment. This video is in my favorite folder & I'll be referring to it often. I learn from all of your videos that I have watched.
These videos just seem to get better and better. Love your description of the AVC circuit! The video quality on the was perfect. On all the videos that I've seen of yours, you always say you need to adjust the camera or pardon yourself for being hard to see a dial or whatever, but I've never had any problems seeing anything in your videos. Thanks!
I read an article in the Electronics Australia Magazine from the early 70's that talked about when transformerless TV's were introduced into Australia and the electrical board banned them from sale after conducting tests and finding out that half wave rectified AC was sending DC down the ground wire which was back then tied to the galvanized plumbing. They found that the DC on the galvanized pipes was causing electrolysis and would dissolve a pipe in the ground in a matter of a few months which the board of water works at the time wasn't happy about. I think that the government did a buy back of all the TV's sold that didn't have a transformer and we never really had a transformerless tv after that, I don't think that a radio like the all American five would have been allowed to exist in Australia either.
Of course back then the home electrical system was a bit different, all houses have a dedicated ground wire which now goes through an RCD device then to a copper ground stake. I was fascinated to learn that we actually had a DC electrical system before we had AC! I would have thought that the DC system came and went quite quickly since back then things moved slower, I wonder if it was an Edison DC system? I'm aware that Edison came to a little country town at that time called Ballarat to see a one piece phone handset that someone there had invented which is basically the same one piece design that we still have today! Ballarat incidentally for those who don't know also became the hottest destination back in the early 1850's when gold was discovered and the rush from around the world was on!
Fun fact, if it had not been for the discovery of gold, the capital of Australia was going to be Tasmania! At the time, Melbourne was being considered for the new capital and the other place up for consideration was a coastal town called Geelong! The boat loads of people coming into Australia for the gold fields were getting off at Geelong because it was closer, Melbourne noticed that they were missing out on the tourist dollars to Geelong so someone drew a new map that made Geelong appear to be much further away than it really was and sent it out around the world to get the boats into Melbourne without Geelong realising it LoL... For a time, Melbourne became the richest city in the world, the money isn't there like it used to be but if wealth is measured by quality of life, then we are still the richest city in the world!
Thanks for sharing your story Peter!
This is why I am a Patreon supporter- my way of showing how grateful I am for him sharing his knowledge.
Thanks Mr. Carlson! Ive aligned many 455kc I.F. transformers over the years but learned many valuble lessons so I cant thank you enough. For one, Ive always used a 1000hz audio signal from the generator. Didnt know 400hz was Ok...cool! Secondly Ive never considered starting with a high amount of RF signal (500uv or more) and decreasing the signal as the gain in the IF strip improved. My method was similar, but I always started with a very small signal fearing the all dreaded "AGC action" screwing up my alignment. Also going through every screw in each can and then starting back at the very first adjustment is the answer. Id rock back and forth between the first two, then move on to the next two rocking back and forth. Wrong Andy Wrong!. Last but not least I always aligned with a VTVM on the speaker coil. Never even considered the spectrum analyzer and I have a small but pretty accurate one on my IFR AM/FM 1200S. Thanks again Mr. C you rock!
I appreciate all the efforts you put into these videos. Very informative and detailed.
Wow! That was quick. Can't wait to watch this one
Your an unbelievable guru. I graduated electronics in the TTL era. Dogbone resistors, non standard color codes, tubes, they are a complete dark art. Thanks for removing the mystery out of tubes.
Glad to help!
Finally got a chance to watch this. Meticulous and fascinating as always. Love the look of these simple dials too. Cheers
Thank you so much for the information you share. It's so easy to understand the fundamental of elctronics just by watching the videos and then apply what you just learned. Thanks again and I'm looking forward for the next video!
L.E. I've just fixed a Zenith from 1937. I've built a small signal generator and align it. Works like a dream! Short wave reception is amazing on this radio. Too bad the street lamps are noisy...
APPLAUSE! thanks, Paul, super interesting and clear like always. It will be nice to see the visual alignment as well. so much information from such a little radio, awesome!
So looking forward to the sweep generator alignment process!!
Thank you, Paul for the alignment video. I really enjoyed your full explanation of it.
This is wonderful! Thank you so much for posting this "Secret" info on aligning these radio receivers. I think I understand enough to take on an old shortwave receiver I have.
You're very welcome!
Yes, the alignment video !
Thanks so much Paul, this will really aid me in doing allignments to old radio's myself 😀👍
Glad it helped!
This video is like the missing link for me in gaining an understanding on how these radios work. I can read books and watch videos and gather as much knowledge as I can and then find myself in front of all the hardware at the bench and say now what? It’s hard to dive in sometimes because I don’t want to damage my equipment or the radios I plan to work on. Those little tiny details between steps are what makes the difference for me. Thanks Paul.
Glad to help Bart!
@@MrCarlsonsLab
Are you thinking of making a video on how to align a cordless phone frequency between the handset and the base by using a frequency counter and a scope ?
Thank you sir, a true scholar and gentleman!
Great job Paul! I botched an alignment on a Heathkit AR-3 because I was feeding too much RF into the device. Took me several attempts to get it. I was using a Heathkit IG-102 signal generator. I discovered I could simply wind the test lead wires together to inject signal rather than stick the alligator clip from the signal generator on to the radio. This greatly reduced signal and helped me get the old AR3 working again. This video sure would have helped years ago when I attempted that alignment. FYI: gee whiz you sure have a nice RF signal generator.
Wow. Excellent alignment video. Super enjoyable and informative. Thank you very much. Your projects are always appreciated greatly.
Beautiful receiver and it sounds pretty great too! Thanks for sharing this excellent information
Excellent as always. I think you must have lived in the 1920's as your knowledge about these old radios is so complete.
I'm going to share this video with my students.
Thanks Mr. Carlson!
47:25 - Mr. Carlson gets a mention on the radio! Very informative tutorial as usual - many thanks!
Tucker Carlson... but I get the point.
@@540Baseball Tucker who? No it has to be Mr. Carlson!! :-)
C00kie, great catch, very funny! :-)
LOL. Different Mr. Carlson!
This video is a fantastic reminder of all the stuff I had forgotten. Be nice to cover fixing when the dial is in tune at each end but goes out in the middle and requires bending the outer oscillator plate. Be nice to mention clamping the AGC for alignment and your modern signal generator output is PD / EMF. And final using RMA dummy antennas. Thanks for sharing regards Chris
One of my favorite videos you have done. I guess I have a penchant for alignment work.
Yay, I get to watch a Mr Carlson's alignment on my birthday!
Mr Carlson, very educative video, thank you! Misalignment, I like that phenomena :) I've bought many great (digital) tuners from the 1980's and 1990's in thrift stores for €5,- ($6,-) with a sticker on them, saying that they're not working. After warming up and realignment, most of them are working fine again.
Really nice video, Paul. The one thing you didn't show, that I'd be interested in learning, is how/where you safely hooked up the spectrum analyzer, given that it is a low impedance.
Thanks for stopping by Alan! Back when these radios were produced, most signal generators used output sections that would not only vary amplitude, but also the output impedance as well (think wirewound resistors in the output attenuation network,) pretty crude by today's standards, but it was effective. So when the signal was turned right down at the generator's output, the output impedance of the generator could be as low as a few ohms. When this low amplitude, low impedance source was fed into the antenna termanel on the tuning capacitor, no ill affects are encountered. The antenna itself (loop antenna) is a fairly low impedance itself. The analyzers tracking generator is fed to this point through a capacitive isolator. The 1 Meg input on this analyzer picks up the signal through another protection device at the radios detector plates. The signal at this point in the radio is strong enough that clipping the input signal lead to the insulation of the detector plate lead is enough for proper coupling, and since this is a high impedance point, the loose coupling doesn't drag the alignment of the last IF stage.
@@MrCarlsonsLab I see, I didn't realize that your analyzer has a 1Mohm input impedance - that does make it easier. It gets a little tricky when using a spectrum analyzer with a 50 ohm input impedance, as most have.
L
@@w2aew , By the way, have you seen the actual COST of "proper instrumentation online? It's shocking. AND... many are not CALIBRATED, only working (whatever THAT is meant to say... not renovated ala Carlson).
Excellent! I have learned more about electronics in the last year or so watching your videos than in my entire life. Thank you for such clear explanations.
Glad to help!
Looking forward to the entire video dedicated to “visual alignment”! You mentioned, as an alternative to the spectrum analyzer, using a sweep generator and oscilloscope. I’d be very interested in that procedure!
Thank you for the time and effort you put into making these video’s much appreciated
Thanks for that. So much detail. Really enjoyable. Would love to see more FM alignments if these sets come in to your workshop.
I truly enjoy watching your videos! Thank you so much for taking your valuable time making these videos. Have a great day!
Fantastic! Best alignment video I've seen. Thank you
This is such a great way to see educational info, and learn electronics. Thanks for all you do.
Anyone watching with curiosity is going to get a real education in alignment and how there is a difference in peaking and visualizing signal integrity. Doesn’t do you much good to peak without seeing the influence it has on the signal. If you want to learn the how and why, you’ve come to the right place. You continue to stress safety aspects when working on this gear. Being injured or killed because you are not sure is both dangerous and stupid. Anyone listening and watching is going to be warned of the dangers. There is no limit when safety is concerned. Being injured or killed is overrated. Anyone who has worked on tube gear and hasn’t been shocked or rudely woken up hasn’t worked on it much. Avoiding injury is key and following your methods are key. Your warnings are valid. Thanks for another great video. Stay safe mates!😊👍🏻😷
First I want to let you know that I absolutely love your channel. Your knowledge and the quality is just beyond reproach. The only comment I wanted to make about this video was about when you were describing these all American five tube radios that were transformerless, you mention it was done to keep costs down. I believe that was true in later years, but initially it was done because a lot of the power especially in large older cities like New York was truly just DC. As AC came on line a lot of the buildings were supplied with both AC and DC, but initially it was only DC. So in order to make these radios work in both situations they had to be transformerless to function. It wasn't a matter of being transformerlesd to save money but in order to make it so people could buy these radios and actually use them as they only had DC available. In fact New York City shut down its last DC supply to the last section of the city in 2007! There were a lot of people that would utilize the wrong outlet and actually damage their newer appliances as there were both AC and DC available especially in apartment buildings in later years.
Highly informative video mr. Carlson. Over here in the United States my friends and I really enjoy that you point to the schematic with the red end of the pointer . Thank you so much. Hi hi
Fantastic video on alignment! I never thought you could make antique radios receive so strongly!
Glad you enjoyed it!
Thank you for this alignment video. I watched it three times and made a lot of notes myself.
an half hour more "Mr Carlson", yes please... an hour more is even better sir :-)
Thank you for putting this up. Very informative indeed.
Mr. Carlson, Nipper and Chipper would be proud of your knowledge and teaching.
that's working so good.. great job!
Nice. I am glad these video was made. The Tweaking Method is what I use since I don't have access to more sophisticated instruments better than my ears :)
Wonderful, descriptive process. Many thanks!
Hi where did you used to work you have such a broad knowledge of electronics
Back, back, back and forth, my pointer goes...in the words of Cameo. My favourite part of alignment is the padders and trimmers. Always popular here for those tongue at an angle moments. Good stuff Paul, basic knowledge but well presented as usual.
Thank you Mr Carlson did a very good job presenting this video. On my wat to try to do my own alignment.
Thank you, I have always peaked them by ear, looking forward to see the difference
I've peaked many by ear, but as I acquired equipment I do it less and less. Initially my ear was not as accurate as I thought, then as I started using test gear while listening I got a fair bit better. That immediate feed back loop of seeing what I was hearing made it possible. At some point there is no way my ears will maintain their youthful sensitivity, hell I had to get glasses not too long ago. Guess it is all down hill from here. LOL
When I learned to do an alignment, the first step was to disable the oscillator and then place the leads of a Simpson 260 VOM across the the speaker secondary with a 4 ohm dummy load, speaker disconnected. I still use that technique as well as the Sweep IF method.
Paul, one of my favorite old-time instruments for alignments is the AC VTVM. There are several Heathkit models such as the AV-1, 2, and 3 as well as the IM-21, IM-38, and IM-5238 (TVM). I also use an Amphenol AC Millivolt Commander which is a full-featured TVM with an AC sensitivity of .01 Volts AC. Using these meters also facilitates disrupting the circuit as little as possible. Whenever possible, I will also use close coupling of input signals by using loops of wire rather than direct connections. As a final note, I will also use the spectrum analyzer for IF alignment and find it exceedingly convenient and speedy to align the dials by sniffing the local oscillator. Your feedback is appreciated. de W1SEX
I love you video's.They are great way to relax and learn too.You do a excellant job of explaining what your doing.its hard to believe all the stuff our last generations invented. just getting radio to work and radios to recieve it were great inventions. i remember my mom and dad had tube radio's. i remember the heat coming from it would keep us warm in the winter. And it had a certain smell too if dust was on the tubes...lol. please dont stop your video's i ve learned alot about electronics. Thanks Again be safe have a healthy year.
Always an exceptional video effort from Paul... Thankyou...
This is an amazing video. I'm just speechless.
Been following this thanks for doing the alighnment
I needed this around 50 years ago...
but modem speeds were pretty slow back then :)
WOW! This was so educational! Thanks!
Excellent video. Thank you!!
Very nice. Thank you for such a great explanation of all of the required steps.
Thank you! That was very informative and a lot of fun.
Thanks Paul, nice tutorial. The dial alignment was a little different to what I'm used to but made sense. Cheers!
Glad you enjoyed David!
Thanks for this video, you really brought that old radio to its prime. so cool.
Apart from all the birdies we could hear..
awesome Mr. Carlson👍
Terrific video Glad you took time to share it with us.
I would definitely like to see more about visual alignments with spectrum analyzers and/or sweep generators, as I have restored lots of old radios and often have trouble getting sweep alignments done properly, especially on FM receivers. I do quite well and get good results with signal generator/VTVM alignments, such as the one in this video.
I came in w/ discreet components and moved forward into digital having worked for & @ T I, but my heart has always been tube sets. Now after seeing this.......I believe I'm going to go back and perform a realignment on all those I've restored recently....only this time....do it right.
The "Bob Ross" of electronics, brilliant stuff, thanks Mr. Carlson.