Electronic Restoration Pre-Test Procedure! 

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

Sure. Full Restore. Love to watch them. Trying to shift to doing instead of just watching. I know it takes quite a bit of lifespan to put these together. Thanks for choosing to do so. They are calming with all the junk going on today.

I'd love to see a full restoration and a short how-to guide on the usage of this scope. Love your videos, please keep them coming and a big thank you for everything.

Hi, Mr. Carlson... I am writing to cast my vote for a detailed restoration of the O-Scope! Thanks, for the opportunity to be counted. I do not have an o-scope to refurb, but I DO have some very OLD tube radios. Your videos are TOP SHELF!!! Steve (from Kansas, USA)

I was surprised to see most of those resistors 10% , so I would be tempted to replace them with 5% or better tolerant . All these vacuum tube gear is worth a restoration. Good video as always

Yes Paul, I would certainly like to see you restore this scope. It looks like it's basically a good piece of equipment.

Would definitely love to see the restoration of this scope!

I think that lovely old scope definitely deserves a restoration.

The face of this is just beautiful, an absolute work of art. Love that green.

Harbor Freight sells and sometimes gives away a magnetic bowl that's excellent at keeping small screws together. And to all: if you sell OLD equipment but don't know if it is good then please cut off the power cord!! And if you aren't technical don't blindly plug it in to test!

Definitely worth doing a restoration Paul, love watching these videos & still so much to learn even after being a tech for some 40 years plus!

Nice Paleolithic scope! Very much worthy of restoration, would love to see that. Thanks mr. Carlson!

Yes, a full restoration would be great to see.

Yes please, a full restoration is definitely warranted! Your clips are both informative and thorough. "There are those who present (and the audience to whom you present is left to do with information what they will) and then there are those that teach (where the audience is left with a full understanding of the subject by full explanations and examples)" You fall into the LATER category of the above statement - GREAT WORK

Yes, Please if you would restore this together, I really look forward to your next project. I patiently wait for each video. You are one of the best of the best.

This old scope definitely deserves a restoration. Thanks for all the nice videos.

Full restoration please, you got my vote...thanks Mr. Carlson for all your content.

Interesting as I love vintage equipment and love to see you restore it.

Yes please. Haven't seen a restoration by you for a while. I need my "fix" 😁

You can imagine the amount of years this showed what was going on to its owner. So reliable and loyal. Now, many decades later here it is, waiting to do it again. They don't make 'em like they used to. Thank you for keeping them going. Please restore it, thank you.

Absolutely a restore! That old electronic smell is like the smell of ozone with my old trains. It always leads me to a complete thorough restore. I hope this too leads you to a full restore, breakdown, analysis, and some good tests! Love these old electronic restoration videos Paul. You’re a true master in your field of electronics.

I love it that you bring these older pieces back to life! Nice work explaining what you are doing as well for the newbies.

0:30 we all share the same love ❤

Always love a Carlson's lab video

Stuck in the hospital, nothing on tv. So happy Mr. C came through.

another vote for the restoration to begin. well worth preserving tech that has survived so well.

Always enjoy watching the old equipments tests and detailled repairs! I wish I could just get my hands on some of these cheap from swap meets and restore them, but there is nothing like that here in Reunion Island 😔 I still have a bunch of old Tek stuff from eBay to go through and fully restore though!

By all means do a complete restoration on this one! It is well-deserving of that! While you are at it, please, Please, PLEASE give the metal chassis pieces a through cleaning as well. I believe that once you change all the capacitors and possibly some of the resistors, this unit will be like new in operation! Looking forward to the restoration!

I've never not had an enjoyable time tearing into an old tube type piece of equipment, and watching someone do it is even better!

Yes please, love to see this working again

There is something beautiful about old vacuum tube oscilloscopes. The warm glow always give the device a special "soul." I grew up messing around with an old Heathkit scope that my Dad had. Seems to me my fascination goes all the way back to old "Outer Limits" shows: "...WE control the horizontal. WE control the vertical..." I particularly love a fine Lissajous curve on the screen!

Awesome videos, I always learn something, also I try to remember what gear my grandfather had when I watch, I was quite young so I didn't get to touch anything, when he died it all disappeared. By all means I would love to see this scope restored, it will help me learn more about restoring old gear and what it can be used for, so that one day I can restore my Radio Frequency Labs 829D calibrator that I picked up from my local electronics shop that looks like it hasn't changed much since it opened in 1952,

Go for it. It is always interesting to see a restoration of older equipment. I restored an old radio, and that one had flat wire from the resistors.

This old piece of kit is definitely worth a restoration and I'm sure everyone will look forward to seeing that. The old sleeving on the interconnecting wiring appears in excellent condition so I would guess it's probably been kept in a stable environment over the years. I note it has a 3AP1 CRT tube which brought back a fond memory for me as I used one when building an "old-style" panadaptor a while back. I was very surprised by the bright trace it produces at very low EHT. Great video as always!

I love your videos, it's amazing what I have learned from watching you. I would love to see this scope restored and brought back to life.

Definately want to see it restored.

As the guru who finally demystified analog electronics for me, I'm happy for any knowledge you care to impart. If you'd care to restore this 'scope I'll certainly watch it. Having seen most of your videos, I know the process fairly well at this point, but they're still worth watching for the "gotchas" hiding in the different designs. Off to Patreon, as it seems I have some catching up to do. 👍️

Always love seeing another old scope saved and brought back to working condition!

Full restoration please! It would be interesting to compare this scope to a modern device to see how it performs. Thanks for the videos!

Yes, full restoration! Would love to get hold of an oscilloscope myself someday.

Hi Paul. I really enjoyed this episode, because I actually owned one of these ‘scopes. Although I did not use it much, it worked very well for me. I obtained this unit from a friend over 50 years ago. Thanks again for the memories.

Keep on resurrecting this neat stuff!

Yes, please restore this old-school oscilloscope! This unit is a Sylvania Model 131, which was made between the 1930s and mid-1950s. There was a larger CRT model, the Model 132. The Model 131 used to have a different faceplate scheme for lower serial numbers, while serial numbers above 2000 were built from the late 1940s through the end of production for the model. Both the Models 131 and 132 were built with the "I-beam" construction technique that hung the tubes (usually octal and loctal) upside down like automotive radios of the era. There are Model 131 schematics available from the Oscilloscope Museum. I'd love to see how you would rehab such an "old timer" from the transition period for oscilloscopes around World War II.

So nice to see another video - I was really missing you! :) I love the way the dim bulbs look. Well, the look of the whole variac / bulb / isolation transformer reminds me of the 1920s electrical design style.

Absolutely ---- Restore this guy. Very interesting video. Thanks a bunch. Much appreciated.

full restore would be great. Learn so much from your videos.

I like your videos. Two comments: 1) The L in Solder is silent; 2) Since there is oil on our fingers, it is critical to NEVER touch any conductor - such as pins or terminals. If that happens, the terminal should immediately be cleaned with 90% isopropyl alcohol. Steve S, Radar Scientist/Engineer, Raytheon SAS.

Yes please we are very interested on full restoration and calibration !

I've had several old oscilloscopes over the years. Fun to play with. I picked up a Heathkit Model 0-5 at a church thrift store for $10. You are lucky that your find was not modified. Mine is modified and a schematic isn't the easiest to find. Someone had one on EvilBay with manual but they wouldn't make a copy of the schematic--no reply to my request. It has the classic goofy raster like this one. I once had an old EICO model from late 40's. It worked fine. It also had evidence of modification with extra holes in the front.

I would certainly like to see a restoration of this unit.

I’m looking forward to this restoration And seeing it work perfectly again! It definitely deserves it😁

Come on Paul, you made fixing a coffee machine fun and interesting, and I don't even drink coffee. Restoring this old jewel should be even more enjoyable to watch as are all of your videos. Let's "git 'er done"

Full restore! It would also be nice to see a bit of how this would fit into one of the labs - what pieces you have, what you have that needs to be restored, just overall how things are going.

I vote for restoration. Always love to see old stuff like this brought back to life!

Go ahead Mr. Carlson . I would like to see it completely restored.

Of course as always....restoration please!! I love this stuff! Great video as always!! Thank you for sharing your vast knowledge with us Sir!!

Another absolute banger of diagnostic & testing videos! Keep up the most excellent work!

Love the channel , a full restore would be a great video to watch , looking forward to seeing this completed ,

Thank God....I was going through withdrawal! :-) Should be out gardening but no way until I watch this. Thanks, Paul. Yes please....rebuild would be interesting.

Being dyslexic electrical schematics and such is beyond me being able to comprehend them. But I do enjoy watching you work.

LOVE these kinds of restorations! Thank you ! I have a Tek 545 that I need to restore - project for 2022.

I always look forward to and learn a lot from your restoration videos. I vote yes! Thanks for all your work on these and for sharing all your knowledge and experience.

Thank you Paul for all of those great videos you have given us throughout the years. I have learned so much thanks to your channel and the electronics course you present so well. The way you go about explaining the theory,practice, and procedure to troubleshoot and repair such items is a very rare gift. I only knew one other man that possessed this special talent, and he was my mentor for better than 30 years dealing in mostly Amateur Radio .. Like you, a real electronics genius who knew his stuff! Thanks to you, I am slowly building up my lab. Some old test gear.... Some new. And in watching your vids, I have a really good grip on what to purchase. You have built up my confidence to “ dive in” and repair that old Tube gear! Now knowing what to do (To a certain degree) I have restored several old tube revivers. The more modern electronics, still elude me for the most part. But at least now, I’m not afraid to try...... Thank you once again! And keep up the outstanding work!

Go for it please. Nice to see old equipment in use. Brings back memories. Thanx Ken; from gpt ms

Looks like my old EICO 425 scope. Thanks for the trip back in time.

Absolutely YES! These things are great to see.

Paul ---- I vote yes on a restore video. I have an old Eico 460 scope to I'd like to rebuild/get working. I started in hobby electronics back in the 70's with 7400s and then 555s. I skipped high voltage stuff, now I find myself being drawn to it. In large part, your fantastic videos are corrupting me. You have skills I can only dream of approaching in time. You and your channel are a magnificent resource, plain and simple. Thank you for all you do.

My first job out of college was for Sylvania Electric 👍

Hi Paul... yes please... also interested in then seeing how you use an old scope like this... thanks again for another of your great vids... keep up the good work...it's much appreciated...

I'll enjoy watching a restore! Thank you as always.

Yes do restore it, really enjoy our videos got me intested in getting back into electronics will look into your patreon stuff

Great looking scope! Definitely show us the restoration. As one of your long time Patreon members, I’ve probably watched every scope and radio restoration you’ve done, but you inevitably include tips or insights that you have not mentioned before. It would also be interesting to see more of your behind-the-scenes processes: searching your bins for parts, showing actual repairs, etc. I know that such a recording would probably be split into at least two videos, but that would be fine with me and many others I suspect. Thank you, Paul, for what you do for this community.

Absolutely, I'd love to follow you along while you do a full restore; how & where you find documentation ... to checking stuff, cleaning to where to obtain parts from, etc. The whole 'ball of wax' ... so to speak. 😉 Thanks much, Paul!!!

I didn't know Stromberg-Carlson made these. I once accidentally smashed a 6E5 tube in my Jackson condenser tester which was held in a spring clamp. It's a good thing I was able to find a nice and strong one which didn't cost too much.

Yes rebuild it. Fun to watch you work.

Heck yeah! Do it! Full rebuild and demo its use in today's digital circuitry. As always, good job!

Full restorations are what's keeping me alive

Such a neat layout there, looks like a joy to work on!

Love to watch you restore it!

Loved your video of this old valve based scope, i'm an old engineer thats worked with B+W and Colour TV sets from the late 60's that were hybrid designs made for the uk market so have some knowlege of valve based equipment but i learnt my trade from 1970 by then most TV's were solid state, with a few valves. While fault finding i had acsess to Valve and Solid state scopes so i find your restorations of these early scopes very interesting, i never came across the wax caps or early electrolytics during my servicing years but do know these caps can go leaky or low in value hence the hum youve mentioned in your radio restorations. I would like to see the Silvania Scope fully restored, it would be a challenge to repair equipment like this as ive not come across any valve based equipment for years in the UK. Hope to see your resoration video on here soon and hope you have the time to get this scope working soon.

Full restore please Paul, you know we want it😀 TFS, GB :)

Yes I would like to see the scope troubleshooting in full! Thanks Mr. Carlson for all you do!

It would be very interessting to see you restore that fine device, so defintately a big thumbs up and YES for a full restore 🙂 Greetings, Michael

Heck YES! And soon I hope. That's a neat old scope.

Yes would be great to see a restoration. Thanks for sharing

Obviously wanna see it come back to life super cool

Thank you for sharing. Excellent video, as usual. I would enjoy seeing that scope restored, and I look forward to the next video.

Rebuild it, your rebuild project are always very interesting and appreciated!

I would love to see you restore another device. Thank you for sharing your knowledge.

Very easy access to the caps & resistors. Should be a fun resto job.

Yes, please restore. I love the look of that big old tube in the middle, looks like a double triode of some sort, not seen one like it before.

Very much looking forward to seeing your restoration of this scope.

Scopes make great restoration projects and a great video for this particular scope.

yes please do a restoration video, love your work!

Yes please to a video restore series. Thank you.

Dang so when i "invested" in a carton of fifty 5B/254M loctal tubes for experiments, 1st time i put one on my tester, i so got it so wrong! I had to unplug the NOS tube & reset things. It was so hard to remove & rocked it like crazy in the socket & then pulled it & reset things on the tester, plugged it back in. For a couple of minutes the filament glowed and i got some readings but then nothing! It was hot to the touch & the filaments were drawing current but were not glowing red at all! Later (1/2hr) i noticed the edges of the getter going white! ... It took over a day for the getter to totally go away, completely white. No cracks to the envelope so i guess i wrecked the pin seal unplugging the tube so rough. Then i found the socket, on the tester was a new modern one. It was just so strong on its locking compared to a quality original version! (Just neat to learn how i was supposed to unplug a Loctal, so thanks Paul)...

Always enjoy your videos! Greetings from the Kawartha Lakes!

What a cool scope. I've got a Heathkit O-9 that was my grandfather's that I need to restore in the garage. This scope really reminds me of it... :)

Oh, absolutely I'd like to see this unit brought back to its former glory!

Thanks. +1 for the restoration.