Oscilloscope Restoration
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- Опубліковано 22 кві 2016
- Vintage Oscilloscope Restoration and Modification. This is an old Heathkit O-11 oscilloscope that's being returned to proper working order. In future video's, I will show you how to use an old scope like this to troubleshoot electronics, modern and antique. This scope is still very valid on the test bench today!
** The Video that inspired this one **
• Old Oscilloscope, The ...
** Capacitor Video to help locate the outside foil end **
• Are Your Capacitors In... - Наука та технологія
Interested in learning more about electronics, and viewing more of my video's? Check out my Patreon site, and join the crowd. Click here: www.patreon.com/MrCarlsonsLab
Mr Carlson's Lab i’m not really into restoring vintage stuff but I like restoring retro things like 8-track/cassette players” Also I am going to tell you that when fixing a retro camera...BE CAREFUL and where gloves because you do not want to touch the flash capacitors leads if you do happen to touch them which has happened to me a couple times trust me it hurts like hell because those capacitors can store up to 300 volts.
Mr Carlson's lab: interested? Your walk thru of your lab, damn near made me hard. Sorry for being brutally honest.
I was struck by something you said, Mr. Carlson, 'Today's engineers would be much better engineers if they knew about yesterday's technology'...
You Will never get a Better oscilloskop en this you restore
Can the 0.1uf 1600v wax capacitors be replaced with a polypropylene cap like an orange drop?
I am now in my 70s watching this project brought back some long forgotton memories. at the age of forteen i had just started work having been interested in radio comunications since the age of 8 i came across an article in practical electronics offering a new way to learn electronics and new trouble shooting tecniques by building your own occilscope the course ran for 12 and all it would cost me £2.17'6d per month so i sighned up and it was one of the best moves i ever made I learnt a lot from that course and ended it with my very own occliscope and mutimeter both built during course.
De Bob G7DME UK
Can you imagine, some old retired technician, watching these videos, and suddenly realizing "Well, I'll be damned! That's the exact same damn device that drove me nuts back in 1984!"
Very nice video. I worked at Heath Co. from 1963 through the last day before closing. Worked as a service technician and worked on many O-11 scopes. Also worked on most other products in the Heath line. Nice to see this test epuipment get such TLC
Mike Krieger , What are the designations of the FIRST (oldest) Heath oscilloscopes? Please leave the list here as a "reply." Thank you so much! nitroxpro@gmail.com
Hi. Regarding the flat head screwdriver slipping and marking a nice face. From experience (watchmaker) I have found that it often happens because the tip of the screwdriver blade is too thin. The blade tip rests against the bottom of the screw slot and it is basically similar to resting on any flat surface. To avoid slipping, the screwdriver blade should be thick enough so the contact points with the screw head are along the edges of the slot. It should not touch the bottom of the slot. That way when you press on the screw, the blade jams in the edges and it stays fixed. Also it leaves the screw head in better condition than a thin blade. In watchmaking we use many screwdrivers with different blade profiles. Sorry for the length of the comment :-) Merry Christmas!
When working with screws that have very big slots or are worn out a bit a small piece of electrical tape over the blade of the screwdriver helps a ton sometimes. 4 years later but maybe this saves someone's paint😅
@@maxs.3238 Good tip actually!
Most regular screwdrivers aren't really ground properly. The tips are wedge shaped. Screwdrivers used by gunsmiths are MUCH better as they have good concave grinds to help keep the part of the screwdriver in the slot vertical to the edges of the slot. This helps prevent slipping. And, of course, slipping screwdrivers is very undesirable in gunsmithing. A couple of brands are Brownells and Wheeler, but there are others.
This video just saved me a lot of time and trouble. Got a Heathkit IO-4205 dual trace 5 MHz scope real cheap and started to restore. I got to the point of calibration and adjustment. I got to the triggering adjustments and realized something was very wrong. About half the trigger mode setting combinations didn't work! I was about to go hunting through the trigger circuits when I remembered what you said about the builders being in a hurry and making mistakes on point to point wiring. Ten minutes later checking the wiring to the trigger mode switches and comparing to the schematic and I had the answer. The builder remembered to solder all connections, unfortunately one wire was soldered to the wrong switch. He/she was in a hurry, got confused, and messed up the wiring job. A quick rewiring and I was back in business. Thankyou very much Paul.
You're welcome Kevin
Thank you Mr. Carlson, for the step by step process of restoring these classic electronic instruments !! You are keeping the hobby very much alive and well !!
+lionelguy
Your welcome!
I really love these Heathkit vacuum tube test equipments. Discharge the caps and use the assembly instructions. The nicest thing about obtaining the assembly instructions is to understand the equipment.
This is another movie that I watched with real pleasure, Mr Carlson !, and I am still learning despite my retired age and almost 60 years of my own experience in this field :-) Thank you! and Best Regards Vy73!
Awesome !!! Old Oscilloscope is brand new. It will be another 50 years life.
+John Elliott
I hope so :^) Thanks John!
You seem to be a very kind man and eager to share your knowledge with the world, so thank you because that is rare.
Wish I had found this channel earlier, love older test equipment and bringing them back to life and usable again!
Paul, good job. A tip for those who do this restoration: level the CRT trace by marking a line on the horizontal trace with a ruler and a felt marker then power the unit off, discharge the caps, etc. Then twist the CRT until the line is perfectly horizontal. Tighten up the clamp and wipe the marker line off with alcohol.
+William Phinizy
Great tip William!
Being the clueless bodger that I am I was expecting my brain to melt early in on this job, your skill in preventing that from happening is amazing! I loved the neatness of the work, the cable management, the complete absence of hot snot, the aesthetics in retaining the original cans and the overall level of care and attention made this a pleasure to watch. Great job!
Thanks Robert!
I know everything takes a lot longer when you have to shoot the video too, but we all appreciate it. I always learn something new. Keep up the good work.
+Galactic Edge
Thanks!
I restored a Heathkit Model IO-18. I cleaned the case and spray lined it with flat black Rustolium. I placed brand new capacitors in my oscilloscope, replaced the light bulb with a super bright LED and 1K resistor. Cleaned and lubed the switches with CRC QD contact cleaner. Careful to not remove the paint from the tubes. My Heathkit IO-18 works perfectly. I recommend to obtain the assembly instructions, go about restoring the oscilloscope as like building the kit. That's the best way to learn.
Thank you.
I was able to build a number of laboratory instruments as a PhD research scientist.
I enjoyed your video.
Sometimes resistor values change to compensate for higher input voltages. When working on tube circuits you must not let the voltage exceed the rating of the tubes. Remember line voltages were lower when tubes were used in electronics. Most line voltages were 110 to 115 volts AC. Now voltages are 125 to 128 Volts AC. I always use a voltage reducer when I plug in my tube electronics. I saved even my string of lights by using a voltage reducer. Thanks for this Video I am glad tube electronics is still alive to this day.
"Let's see how it does at 2MHz.. now at 3MHz..."
"...at 3GHz."
Awesome video - reminds me of my old EICO I had many moons ago. That thing was a tank of a scope!
Mr Carlson is one sharp fellow
Benjamin Franklin's glass harp comes to mind when I see these old, long 'scope CRT's! : )
I bought this exact scope on ebay a while back, because of the cool, old timey round screen, with the aim of fixing it up to use in a "Frankenstein's Lab" Halloween display. I plan on building a little circuit which produces a heartbeat trace and a new enclosure with large vacuum tubes glowing at the top. Of course, the other 364 days of the year I get to use it as a normal scope. Another great video, sir!
+jrdubois112277
Thanks!
You should be a professor/teacher/instructor. Very well explained and detailed. I wish I had half the knowledge!
Impressive, You attention to details is what makes the difference.
I always learn something new from You.
Thank You.
+Charles Bickenheuser
Your welcome Charles!
Used to watch these vids while bored in my math/reading help class in freshman year. Just graduated and came back to watch some more. Crazy.
Travis Alan , Unbelievable... but crazy GOOD, I'd dare say. Math is the basis for almost all electronics. The higher the math level, the higher the understanding of the theory. Stick with it! After about 75 years, you'll see what I mean.
My dad used an 0-11 at home for many years. He was a Bell Labs man. I sold it on Ebay a year ago, to someone who was planning to restore it. Maybe he had seen this excellent video. I bought a digital scope to do work on digital clocks and electronics... and I am not sorry I sold the 0-11 - but this does bring back memories.
Love old Heathkit gear, love to see it restored and enjoying the feeling that it now has built-in reliability.
I really started to appreciate these vintage vacuum tube test equipment in my 40's. People have gave me vacuum tube equipment when I was a teenager, I was an idiot for not hanging on to those previous equipment and I didn't know how to use them either. Now, I have 5 vacuum tube test equipment that I successfully restored.
I really enjoy how small modern capacitors are. I replaced those 2 high voltage .1uF 1600V capacitors with film capacitors on my Heathkit IO-18.
This scope made the company really popular post WW-III?! LOVE your vids, Prof Carlson!!!! 👍
I think my dad has one of those! He inherited it from Grandpa, and I remember playing with it in his shop.
Love the attention to detail - great job! Thanks!
Before you even explained why you're making this video, I said to myself, "Yes, I do want to watch this. Using tools to repair tools. And not just any tools. Very sophisticated ones.
Great and tidy work as always, thanks for posting.
I just logged in to request this after watching the preceding video, and here it is! Thanks!
Thanks Paul, once again, a beautiful restoration job!! Cheers, Earl
Excellent. This kind of repair/ rebuild is just what I like. Please keep up the good work!
Thanks for showing this!!! Really cool to see what these old units can do!
Your welcome!
Learning restoration on older test equipment would be good knowledge. The cost of old equipment is low enough for most of us to acquire. For the cost of a few parts it's well worth it.
Thanks Paul! Really looking forward to the rest of this series!
+G Morgan
Thanks!
You are always extremely informative. it's good to know that there are still people who can teach me things.
Fascinating stuff! Love your videos...you have a great teaching/explaining style.
Extraordinary good job. People like deserves to live for ever. Thanks.
Great Instructor..... the best!
You sir, have got some incredible talent and knowledge! Thank you for sharing it with us and please don't stop!
Very nice video. I especially appreciate the extra details you include. Good stuff to learn.
Awesome restore Paul...wow! Thanks 4 sharing!
+saturn5tony
Your welcome Tony!
Nice job, Paul. It was a pleasure to watch. Thanks.
+Robert Calk Jr.
Your welcome Robert!
I had a 70's/80's Hitachi dual scope but that Heathkit is a much more attractive looking scope. I love it! Wish we got more of them this side of the pond.
Really enjoyed your presentation on this Heathkit oscilloscope. You explain it very well. Thank you Mr. Carlson.
Very nicely done, as usual, Mr Carlson. I love every one of your videos and can wait for the next one.
+Warik Yacent
Thanks Warik!
I have an older Sony 308 analyzer I've been playing around with. I'm hooked again once more. Thank you sir
Fantastic job! Loved every minute of it.
+YankeeIngenuity
Thanks!
Thanks Paul awesome restoration and tips.
Great video Paul. I just ran across a Heathkit OM-3 that I'll be restoring soon. Thanks for the preview.
Looking forward to the diagnosing videos, can't wait sounds like a great series idea!
+Sam Iam
Hi Sam, more video's on the way.
Nicely done Mr. C - you are a class act.
+David Legault
Thanks David!
I love it, very well done Paul! Like how you fixed the caps. Great old stuff glad that you have done this restoration and the excellent demonstration. See you 73
+TRXBench
Thanks Peter! 73!
Wow! So many professional electronics around you! Congratulations!
Nicely done, thanks for making this video!
very nice.....can't wait for the testing videos
Great video! Thanks for taking us along for the ride. I now have a much clearer idea of how to re-cap and troubleshoot my functional but finicky HP 120B scope. Thanks!
+N1RKW
Your welcome Adam!
Wonderful! Excellent job, and fascinating work! I had an old Eico at one time, my first o-scope, that I picked up at a garage sale for around $5.00. It worked pretty well, though at 13 I had little idea how to use it properly and no one to teach me. I managed to make it do all sorts of stuff before a lack of knowledge...and a lack of anything to use it on...got it relegated to my closet.
I'd also picked up what had to be someone's educational kit, a very small, open-chassis o-scope with a very small CRT, no more than 2" in diameter. The CRT mount was at an angle, the front faceplate of the unit bent at an obtuse angle back towards the rear of the scope near the top to accommodate it. I managed to get that one working as well, but it made me nervous as it had NO chassis cover on the back portion, and high voltage was not my idea of a good time.
I'd tried when still younger to re-string a vernier in an old shortwave by leaving it on and using the panel lights to see by. I should have found a flashlight or moved a lamp so I could see, in hindsight, as I must have bridged something VERY hot. I got my tush shocked across the room, and my arm tingled and wouldn't work properly for a few minutes afterward. It was a great teacher in any case, and I had a far healthier respect of high voltage after that!
Good on you
@@TKomoski , try a 2000 vdc suppy for my kilowatt linear (GG 213s) hooked to Giesler tubes, which leaked electrically through the cracked basement floor. Yikes. Mom didn't LIKE seeing my eyes rolled up at all. I'm 78 years old now and remember it SHOCKINGLY vividly. de KQ2E
I bet it's the best that scope ever ran! Thank you for the lesson/video!
+Tony T.
Your welcome Tony!
More awesome stuff Mr. Carlson! I'm still looking forward to the Panadaptor restoration. Keep up the good work! 73
Very nice video. I have an old RCA WO-33 and a Heathkit IO-17 I need to restore and this video helped greatly.
Thank you for taking time to make this video. You can resoften old hard rubber if you leave it in break fluid for a day or so until it get soft. It will never be as new, but it will be close.
+Yann Kitson
Thanks for the tip Yann!
Great work as usual, thanks for showing us through this restoration. I liked it very much.
+Skeeter Holeman
Thanks Skeeter!
This is a keeper as all of your videos, thanks for taking time to explain this electronic stuff. Very well done.
+Jean Deramee
Thanks Jean!
Really nice video, again.
Thank you for sharing not only the video, but also quite a bit of your knowledge and experience.
I found your videos an invaluable resource to come back to while troubleshooting vintage gear.
+Thilo Niewoehner
Thanks Thilo! Glad you enjoyed.
Great point about capacitor voltage labeling!
My Eico 460 can't even push 2 MHz half the time w/o issue. Guess it's time to go through the guts and see what needs replacement. This was an incredibly informative video and even as much as I thought I knew about electronics and scopes this gave me a few "huh" moments. Thanks a ton!
Mr Carlson, The can cap mod solved something I have pondered for some time. Excellent advice. I started a binder labeled Carlson's hints to keep track all of the good examples your videos provide. Thanks again for sharing your skills with us.
+Todd Anonymous
Glad your finding the series useful Todd!
+Todd Anonymous That is an excellent idea...a binder of hints and how to's! Thanks for sharing!
Like always, very professional, you got me watching the entire video. Awesome content. Thanks for the knowledge.
+Bruno Henrique
Your welcome Bruno!
Hey Paul,
Great video and really enjoyed watching it.Your explanation style is excellent.
A+ job, thanks for doing these videos and doing them so well that I actually feel smarter after watching :)
+KD5VSV
That's great! I'm glad your enjoying.
Great video Paul. Thanks for sharing with us.
+Chuck Legg
Any time Chuck!
Great work Paul! Thanks for doing the video. 73
Great video, Paul. I picked up a few more tips and tricks from watching you work. Thanks!
+Shaun Merrigan
Always a pleasure Shaun!
Beautiful work.
Nice demonstration of making an old workhorse earn it's keep. I learn something new every time I watch one of your videos. thanks and look forward to more!
+Richie Allen
Thanks Richie!
I supported my ham radio hobby, while I was in college, by going to hamfests and buying, restoring, repairing and re-selling Heathkit equipment. Most of the time, it was just a matter of repairing solder joints, placing transistors into the correct orientation and other building mistakes. I could buy the equipment very cheap, sell it for a fair price and still make a good amount of money.
Excellent job Paul couldn't have done better my self. A top class restoration loved it.
+Paul Craddock
Thanks Paul!
Thanks, that took me down memory lane. My very first scope was indeed a heathkit, though not a tube one, but with a very similar crt tube. dual trace, discrete components. thanks bunches. :)
+dmwtech
Your welcome!
Ah great! I just picked up an old philips scope that I'm going to restore. This will come in very helpful! Thanks
+michael tuckey
Your welcome!
That was good Mr Carlson well done. Thank You
Amazing craftsmanship. Thank you
+Micheal Double
Your welcome Mike!
Thank you for making this video, I loved it!
+Evan Renberg
Your welcome Evan!
That was great. I own one of these model Heathkit Oscilloscopes. I will follow your video as I go through the restoration of mine. You are so thorough in your explanations, I am confident I can accomplish the task. Thanks again.
You're Welcome Richard!
Great video! I'm in the works of restoring and replacing all the old caps on my O-9 Heathkit from 1953.
Great! let us know how the resto goes.
Great Job!! Appreciate all your efforts and attention to detail. Looking forward to those other video's. Especially those on trouble shooting vintage vacuum tube radio's etc.
+Bill Zadel
Thanks Bill!
After all this time, it still facinates me how clean and precise your work is, Mr C. As they used to say in the Army "...lead by example", which you most definitely do well.
Looking at the insides of this Heathkit, it surprises me how low the component count is, I thought there would be more (expectations ruined by modern technology, lol).
thanks for posting this and for 'mentoring' me for the last year and a bit - cannot wait to see what 2017 brings ;)
Hello Mister Great and beautiful job !!! Respect and long life for you Eric from France ...
Thank you very much Paul. for all the valuable information.
All my best.
Bobby
+Bobby Tectalabyss
Your welcome Bobby!
That was really good Paul. Thanks pal as always.
Carl
+skycarl
You bet Carl! Glad you enjoyed.
Great series and so well done. I appreciate the detailed explanations and especially the side hints on what to watch out for concerning components (old rounded molded resistor trouble, shielded end of caps for example). I have been restoring receivers for years but with your videos I am learning a lot. I really liked your approach replacing gang can caps using the existing tie posts and the ceramic stand-offs. Thank you so much. Looking forward to more!
+jerry Kovacs
Glad your enjoying Jerry! Thanks for the kind words.
Excellent Paul, really informative and useful, as usual - keep up the good work...
+David Portch
thanks!
Great video - I'm in the middle of a restoration of an NRI/Conar scope with a very similar setup inside. Very helpful!
+Matthew Wilson
Thanks Matthew!
That was awesome great video Mr Carlson.
+wade hicks
Thanks Wade!
Nice restoration Paul. I really enjoyed the video.
+Michael Lloyd
Thanks Mike!
Excellent job! Thanks for the lesson.
+Billy “stormlight” Steen
Your welcome Billy!