1920s Rare Battery Charger [Restoration]

Рет қаралды 1,492,181

4 жыл бұрын

In this tool restoration I focus on a 900-Sterling Rectifier made by The Sterling MFG. Co. of Cleveland, Ohio. The rectifier was most likely used as a battery charger for radios and cars in the 1920s. From my research, I do no think this exact model is a common tool as the pricing suggests it was around 5% the cost of a Model T in 1922. I believe this is a vibratory reed half-wave rectifier, but I am not 100% sure. This technology was used before vacuum tube diodes became popular.
The actually restoration was much more involved than I thought it would be and I was concerned that I would not be able to get this to work once back together. Electrical wiring is not my area of expertise, but a bunch of research helped. I was not able to find an exact patent, but this one was close: patents.google.com/patent/US1...
I chose to replacing the nickel-plating on some of the brass parts, but not all. I had to remake some bakelite pieces, but was able to revive others in plastic restorer cream. I also chose not to do a clear coat on this tool as the original paint seemed to not be that glossy originally. I would have also liked to rewire the main coil, but I just do not feel comfortable yet tackling that. I really do want to have a try at rewinding an electric motor, but I don't want to practice on something so uncommon.
I was VERY surprised that this worked after I wired it back together. It took me about 5 hours of wiring to make sure this was put back together in the exact right way.
Hopefully I can pass this along to someone that can exactly explain how it works!
These are advertisements from 1922: imgur.com/a/7L0uZb6
28:39 Nickel-plating solution
Checking continuity: • HOW TO Test If The Mot...
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Пікірлер: 1 600

@HandToolRescue 4 жыл бұрын

If anyone wants to take the time to explain what each electrical part does, and how this whole thing works, I would really appreciate it. There are documents and images in the description that should help you out!

@djfaber 4 жыл бұрын

Based on only watching half the video, what I see is a simple electromagnet chops the 6v AC wave pulse coming from the transform down effectively creating crude DC current, the sense line to the meter probably comes right off the larger coil which creates the pulsing magnetic force used to generate the DC current. The buzzing and adjuster are probably there to allow you to control the pulse width of current being sent down the charge lines. Looks really similar to half of an old school Lucus "regulator" for old bikes. But I'm not an EE so I could be way wrong here.

@jackalqueenston1175 4 жыл бұрын

O carregador que marcar?

@henriquecasonatto8881 4 жыл бұрын

very simple step down transformer with mechanical rectifier and inductor to smooth out the dc .

@theropesofrenovation9352 4 жыл бұрын

@@henriquecasonatto8881 Very simple step down transformer. WTH? Don't even know what that means. lol

@JJAstley 4 жыл бұрын

27:51 is that a normal alkaline/carbon-zinc battery? I don't recall them being rechargable

@grant0617 4 жыл бұрын

I have never appreciated ElectroBoom's eyebrow dexterity until now

@HandToolRescue 4 жыл бұрын

He's the master!

@friedchicken9110 4 жыл бұрын

Lol 😂 i was like wait what

@dingo_prod 4 жыл бұрын

@electroboom legenary new padawan

@acer2012 4 жыл бұрын

Me too hahaha

@blindmelonlemonjello 4 жыл бұрын

@@HandToolRescue brother eric is the tiny wrench going to be available soon ?? Also where the hell is my big wing nut screwdriver ? Lol

@lukasseyfryd5956 11 ай бұрын

Making use of the kzfaq.infoUgkxcJ22tnHH9l1vjdIdEIG27iOG55P7LXI8 reconditioning plan, I just saved 2 auto batteries from being completely junked. The guides were very simple to follow. I wish I would have found this years ago! You may use the guide to recondition any battery type

@christo930 15 күн бұрын

I assure you there is absolutely nothing that is going to recondition dead batteries.

@TheGimpy117 4 жыл бұрын

1920's safety was: "hey don't stick your fingers in there"

@VintageTechFan 4 жыл бұрын

"So. If I touch that I will die." "Yes. So don't touch it."

@LeglessWonder 4 жыл бұрын

Lot less law suits back then. Now we get stupid stuff like "don't take propaxis if you are allergic to it or any if it's ingredients" cause people are stupid and sue because of it

@seanfatin9917 4 жыл бұрын

Rule #1. Dont stick your fingers where u wouldnt stick ur dick.

@center4nerds 3 жыл бұрын

@@LeglessWonder people back then didn't survive to sue...

@devo076 3 жыл бұрын

And then hippies were born. And common sense went in the toilet.

@justinbell5696 4 жыл бұрын

Through the whole video, I was wondering what is doing the rectifying. Never seen a vibrating rectifier before. So simple and elegant. Super cool!

@vincentrobinette1507 4 жыл бұрын

I wondered exactly the same thing! As soon as I saw the carbon block, that's when I realized, that this uses a synchronous vibrating contact as a "mechanical rectifier". Noisy, but effective. I like the idea of the thumb screw, to be able to adjust it. It might even serve as a Silicon Controlled Rectifier, allowing you to adjust the charge current, although, most would set for maximum amperage. It's a very clever way to convert AC into DC to charge a battery, without any kind of thermionic or solid state rectification.

@DragonHeart5150 2 жыл бұрын

Interesting kind of rectifier.

@zachshiray8998 2 жыл бұрын

😄😄😄vibrating rectifier😄😄😄 .............I'm sorry 😞 I'm a child😁😁😁

@filanfyretracker 2 жыл бұрын

@@vincentrobinette1507 it is very interesting as the only DC conversion I knew of for this era other than tubes was the heavy iron stuff, That is the big rotary units often used in things like the NYC subway.

@MrWaalkman 2 жыл бұрын

I remember them in car radios. :)

@b2gills 4 жыл бұрын

Those two round coils are there to provide a magnetic reference for the switching element. (The patent has a permanent magnet instead.) The small coil around the switching element causes the element to move according to the magnetic reference. The big coil is just a step-down transformer. The design is very ingenious. It uses the voltage from the battery to make sure the magnetic reference is biased the correct way. So you can hook up the battery either way and it will still charge it. (The advertisement says that you can connect it “without regard to which is positive or negative.”) The patent doesn't have that feature since it has a permanent magnet instead. This also means that you can't charge a fully dead battery without risk of charging it backwards. This is the reason the ammeter goes both directions. If you hook it up one way it swings to the right, the other way it swings to the left. Since you grounded the case, you may need to be wary of using it on a battery that is also connected to ground. Because it may be possible that one of the charge cables is connected to the case. The patent also has two half-wave rectifiers, but the one you have only has one. This was probably to make it easier to adjust, as you only have one adjustment instead of two. Also with two there is the possibility to short it out. Don't rewire the main core unless there is actual damage. It would be difficult to get as nice of a wind without a lot of effort.

@mred8002 4 жыл бұрын

Great info! Thanks!

@ryanm5578 4 жыл бұрын

Did you sleep at a Holiday Inn Express last night?

@railgap 4 жыл бұрын

I'm a 57 year old multi-disciplinary engineer, mostly EE work, and I had to read your explanation three times to understand what you are trying to say. Please don't take up teaching. >_

@b2gills 4 жыл бұрын

@@railgap It is a magnetic-mechanical design. Both of which are difficult to describe without visual aids. Also I was going for a short description that gives the gist of how it functions to nontechnical people. For technical people the patent, and advertisement should be enough to figure it out. Which means they should have figured it out before reading my comment. Someone who watches a channel named Hand Tool Rescue probably isn't going to understand a technical description. So I probably shouldn't say that the two small round coils combined with the coil around the switching element creates a magnetically selective half wave rectifier. Since the two magnetic reference coils are initially energized by the battery, the selection of which half of the waveform is determined by which way the battery was connected. This is different to the patent which has a permanent magnet, so it was not ambivalent to the direction of current. Oh by the way, I am entirely self taught in the areas of electronics, magnetism, mechanisms, and programming; I have had very little interactions with people knowledgeable enough in those areas to describe things in that manner. So instead I tend to describe things in a more newbie understandable fashion. Well there is one exception. I regularly interact with newbie and expert programmers, so I know just how big a divide there can be between the two groups. Trying to describe something for both audiences simultaneously is a frustrating experience.

@minecrafter897 4 жыл бұрын

@@railgap There is no reason to insult this person for sharing their knowledge, especially if its correct. This is the type of attitude that keeps people from sharing their thoughts and ideas, which is a terrible attitude to have in the engineering industry.

@autalkinghead 4 жыл бұрын

1920's Factory Worker: "Hey Guys, shouldn't we maybe put a cover over this thing for safety?" 1920's Foreman: "Get out of here you nerd."

@thomaswhitten2537 4 жыл бұрын

What do you think they lighted their smokes on??!!

@ShainAndrews 4 жыл бұрын

Originally it had a cover. On the cover was a tag stating no serviceable parts inside, and warranty void if opened.

@Freedomquest08 4 жыл бұрын

1920's Foreman: "Nah...after it bites you a time or two, you'll learn to not touch in that spot again. Hey Ernie, I have an idea....tell that new guy to come over here; I wanna show him something" ;-)

@ObiTrev 4 жыл бұрын

1920s Factory Worker: At least I have alcohol!

@shadowflash705 4 жыл бұрын

Shain Andrews quite many 20s-50s radios in the US had no transformer so if you plug it the wrong way you had a live chassis. Originally they came with polarized plug that can't be flipped but since those were breaking and sockets of that type became rare people were replacing them with common NEMA plugs. Plug it... ouch, I need to flip the plug, top mark on the plug and that's it. Here most radios had transformers since 30s because 220+ volts are more likely to kill you. But also... 19th-early 20th century industrial equipment had huge open moving parts and yet people didn't get hurt that often because it was a common sense that you shouldn't get your nose near a huge flywheel at 1200rpm. Just like washing machine manuals didn't have warning about washing animals because everyone understood that an animal will get drown in a washing machine.

@darkgrey1790 2 жыл бұрын

It's truly a joy to watch you work. My grandpa restored antiques when he was living and your videos remind me of him. Thank you.

@axil62 3 жыл бұрын

The 80's themed intro is almost as good as the restoration itself! Makes me smile every time.

@mikeheintz6861 4 жыл бұрын

The manufacturers of this item: "Doesn't this need a case?" "Nah, waste of sheet metal" I still like it though 😜

@SeanBZA 4 жыл бұрын

When electrical equipment was still intended for use by "competent persons", and where you were expected to know that things were not meant to be touched or adjusted by any person.

@yeagerxp 4 жыл бұрын

That is from the era when men tested how tough they were by grabbing a couple of live electrical wires and seeing if they were wimps or tough guys, now we test our selves by not being charged with anger management issues LOL

@ObiTrev 4 жыл бұрын

How about old cars using the steel body as a common ground? A professor of mine was burned while fixing a loose tail light bulb. It was one of those cars with the gas tank under the license plate too. The metal socket of the bulb sparked against the car body and there was enough fumes built up in the trunk for them to ignite. Burned all the hair off his arms.

@baileythesleepless9966 4 жыл бұрын

@@ObiTrev Cars still use the chassis as a common ground

@yeagerxp 4 жыл бұрын

@Billy White Jr. What the hell it is only 115 volts AC. I think he is having one of those "relationships" with the pixies. LOL

@AgriculturalLife 4 жыл бұрын

sometimes you think, when you are removing all the parts, how many times do you have to watch your own video's to get it back together … Respect man, always some interesting video's to see from you.

@HandToolRescue 4 жыл бұрын

All the time!

@bookreaderlabarr 4 жыл бұрын

I take picture when I work on my car so I have photos to show steps

@petepeeff5807 4 жыл бұрын

I watched this on a cell phone,but I believe you reversed the shoulder on the gauge isolator washers. Shoulder should go to inside of gauge to center post. Hope I am mistaken

@nickev96 4 жыл бұрын

so many parts.....

@coffeeman885 4 жыл бұрын

I'm pretty sure that's how this all started. Him filming himself so he could get his project back together and then thinking "well... I have all this footage anyway...".

@elHosed 4 жыл бұрын

I love how this thing just puts all the energized bits out in the open and right near all the likely places you'd put your hands. Housing? We don't need no stinking housings!

@tiger12506 4 жыл бұрын

Your attention to detail is awe-inspiring. I can't even imagine putting this non-working item back together so that it functions -- without actually knowing how it works! Kudos to you.

@shackman9566 4 жыл бұрын

Thank you again it is always a pleasure to watch you work. Im 60 years old and have personaly watched the rapid evolution of tools and technology. The craftsmanship and design and skill and beauty of so many products of the past were discarded with little thought of their value to history. And in some cases their superior quality of materials and design. In my own case I found it impossible to buy a simple toaster that had a life expectancy of more than a few months. I began to look for the old American made stuff and found that yard sales and estate sales have a few. And many other things that are so much better made than the new stuff. We need to revive the manufactor of these older bullet proof products. Buy 10, twenty dollars toasters or 1, 100 or so toaster with nearly 100 times the life expectency. Not only that the beauty of a much better quality product. Polished stainless or cast aluminum with real wood acsents. Many young people have never even seen or used the quality products of the past. Every thing today is disposable and its pileing up in the form of plastic waste. We can and need to get away from our dependence on chinese made junk. Combining the best technologys of old and new we can improve on what our Grandfathers lovingly crafted. And create manufactureing jobs and small foundrys. Sure everything can be cnc machined out of a block of whatever or 3d printed but its just not the same.

@Anrakyr Жыл бұрын

I am grateful to you for your beliefs. Over the years, I bought a lot of tools from the 60s and 40s and brought them into working condition. Modern tools will never match them.

@yoshinomidnight1270 4 жыл бұрын

28:18 is this an ElectroBoom reference?

@muh1h1 4 жыл бұрын

You you really have to ask?

@aserta 4 жыл бұрын

No, it's a Jojo reference.

@yoshinomidnight1270 4 жыл бұрын

@@aserta Nani!?

@Orbis92 4 жыл бұрын

I thought this was a rare image of AvE

@Tazaki 4 жыл бұрын

Half, didn’t Boom.

@yoniwulf7216 4 жыл бұрын

I'm still waiting for you to emerge from the drum of Evapo-Rust wearing a snorkeling mask during "sponsored by: Evapo-Rust" in the intro. 😂😂

@HandToolRescue 4 жыл бұрын

It's 100% going to happen.

@TishaHayes 4 жыл бұрын

That, would be freaking hilarious.

@bloopbloop5663 2 жыл бұрын

@@HandToolRescue has this happened yet I need links -_-

@capitanschetttino8745 2 жыл бұрын

@@HandToolRescue I think you originally came out of that tank. lol.

@w_callaghan8300 4 жыл бұрын

best sound on earth. i was expecting the "pinnnn" sound when a spring flies to the alternate reality

@corwinsaunders3630 4 жыл бұрын

100 years old and working once again

@mm9773 4 жыл бұрын

Oh, spoiler!

@corwinsaunders3630 4 жыл бұрын

@@mm9773 HTR will never be defeated. It might take the parts of 3 tools to make one work, but that's one working tool instead of 3 broken ones.

@InssiAjaton 4 жыл бұрын

Oh, some memories! My mother's older brother described how something like this charger was used to charge the batteries used in the radio sometime in mid 1920's. Somebody in the same village had the charger, so the batteries were carried there every few days for charging. The vibrator based inverters were used still in late 1940's and indeed even early 1950's in the early car radios to convert the 6 V car battery up to somewhere between 100 and 250 V needed by the tube amplifiers anodes. Transistors came a bit later, along with the car batteries changing to 12 V. But the big memory is from the high voltage laboratory of the university. One of the lab demonstrations (yes, we students were not trusted to run that by ourselves) was how a synchronized mechanical rectifier worked. There was a 3 or 4 ft diameter wheel with some wires between copper contacts at the rim. A synchronous motor was rotating the disk -- once we it started. That start required several attempts of jerking it and immediately engaging the motor power switch. If the jerk was not good enough, the motor did not "catch in". Once the motor was spinning, the high voltage AC was turned on and the copper contacts started sparking and obviously generating lots of ozone. But the mechanical rectification did produce growing DC charge to the big metal spheres, until at some 30 to 40 kilovolts there was the great flash and bang from the spheres. I do recall that we measured the gap and used some graph to report the achieved spark voltage. As a side note, at another lab soon after I saw how really high voltage resistors were constructed of long plastic (acrylic) pipes filled with with distilled water. They worked as current limiters at 200 to 500 kilovolts.

@evasuvop8582 3 жыл бұрын

I\'m not sure but ,if anyone else wants to uncover how to recondition old batteries at home try t.co/uUSuy6Yk5g ? Ive heard some decent things about it and my mate got excellent results with it.

@bakupcpu 4 жыл бұрын

That's some awesome vintage equipment! Love it! I would recommend rewinding both coil as it looks like one of the coil insulation was damage. This should be simple to do. Count the number of turn on each coil and redo the exact same with new wire of same gauge. Awesome restoration! Cheers!

@socialghost4400 4 жыл бұрын

The 1990s tv show intro parody gets me every time!

@Markus__B 4 жыл бұрын

Every time i see it i want to rewatch Magnum PI. I can´t help.

@jodidavis6595 3 жыл бұрын

Wow and my husband and I were just saying it sounds like Full House or the facts of life lol

@pesterenan 4 жыл бұрын

That half-wave rectifier reference got me in the end hahahah even the monobrow XD

@jopotzner 4 жыл бұрын

I sprayed coffee on my monitor when I saw that!

@impetus444 4 жыл бұрын

same here, i laughed for almost a minute, not sure why it hit me so hard lol

@jmateos0411 3 жыл бұрын

Watching him restore stuff is pure magic! Incredible!

@chuckmaddison2924 4 жыл бұрын

Now that is something I truly appreciate. I might have been tempted to rewind but anyway it works. I hope you do more electrical things, older the better. Thanks.

@masaharumorimoto4761 4 жыл бұрын

I was uncorking some old seized screws earlier too, love that sound!!!

@davidvarnes7708 4 жыл бұрын

HTR pulls out the charger John Coffey: I's ready, boss. HTR: ROLL ON ONE!

@jodidavis6595 3 жыл бұрын

David Varnes Walkin the mile walkin the mile 😂

@cadrian612 4 жыл бұрын

I have watched all of your videos, beyond the best restoration videos I’ve seen. Thanks for the inspiration! I have started restoring things myself because of these videos, you helped me discover what I really enjoy doing!

@maximoschonhals2289 4 жыл бұрын

I personally love this way you do the videos. Those details of your personality like the intro or the best sound in the world give the video a special touch. Keep it up!! : D

@pemtax557 4 жыл бұрын

As always, beautiful work. This is the first 20's charger I've seen ... it was a cool design. Thanks for always finding something rare and interesting. Cheers!

@lst1194 4 жыл бұрын

I've never been disappointed buy a video of yours! keep up the excellent work.

@kevinreardon2558 4 жыл бұрын

That was impressive. You have quite the eye to spot things that can be restored. I would have brought home a scrap of rust thinking I could produce what you just did. Great job. Love the nickel plating. Very nice touch.

@edmarkham2632 4 жыл бұрын

I used to pride myself for remembering how to reassemble equipment I dismantled. Now that I am much older, I use my Sony mini camera to remember things. Great job.

@pintjockey4745 4 жыл бұрын

Wow! One of the most fascinating rebuilds in a while! thank you!

@sheminger 4 жыл бұрын

Wow! You plug that thing in for long, and every ham radio operator in the states and the FCC will be banging on your door. Hehe. Crazy!

@davidbumpus3457 4 жыл бұрын

That really is the best sound on earth, but only to a very specific sub-set of people. Is it absolutely soul wrenching when the flat head screw driver slips out of the screw and you put a big scratch in a fresh paint job? Good work as always.

@sleve_mcdichael_ 4 жыл бұрын

When you plugged it in at the beginning my first thought was "well this is how he dies".

@granfury1238 4 жыл бұрын

Wow, what a nice restoration. I didn't know they had battery chargers back then but you'll never stop to learn I guess xD Loved the ElectroBOOM reference near the end. And the intro, of course :D

@bernierm 4 жыл бұрын

Doesn't anyone else appreciate the irony that he needed a battery charger to fix the battery charger?

@LeglessWonder 4 жыл бұрын

Does that make it a battery charger charger?

@pmpwiz 4 жыл бұрын

Or the fact the battery is a non-rechargeable battery?

@rushthezeppelin 2 жыл бұрын

I very much appreciated the irony lol

@steveofire56765 Жыл бұрын

Great work! The device itself looks like a top 10 winner in "most likely to burn your house down" tools.

@freeman9479 3 жыл бұрын

No excessive noise ,just pure mechanical discoveries,,,,,I'm hooked

@StephenCoxfixit 4 жыл бұрын

Pretty neat battery charger! Awesome job Eric!

@HandToolRescue 4 жыл бұрын

Almost too neat...

@DJmachine1O1 3 жыл бұрын

His name is Eric? 🧐

@Glimmlicht 3 жыл бұрын

@@DJmachine1O1 cartman?

@bens2207 2 жыл бұрын

Stephen Cox the big shill

@DragonHeart5150 2 жыл бұрын

This man is always up for a challenge and always does phenomenal work.

@Rick_B52 3 жыл бұрын

Seeing the complexity of these hand tools makes me feel like humans are definitely something special.

@Cyruscosmo 4 жыл бұрын

Great video! I love seeing old tools being taken care of and restored.

@SquaredSmith 4 жыл бұрын

You don't need that whole contraption to charge batteries. You just run towards them really fast with murderous intent

@SoneraiBuilder 4 жыл бұрын

We're trying to charge the battery not vibe check it

@SquaredSmith 4 жыл бұрын

Por que no los dos

@LeglessWonder 4 жыл бұрын

Just don't get arrested for assaultin' battery

@censusgary 3 жыл бұрын

Paint it red and put it in front of a bull.

@alexduke5402 4 жыл бұрын

You don't need a ground wire where we're going! Lol that reminds me of this 8"grain auger had a 220 single phase 10hp motor on it and the ground was messed up there for a while me and the other guy would rock paper scissors to figure out who would turn it on and off when there was heavy dew or after a rain.... It sucked

@R0ADST3R 4 жыл бұрын

I love how it starts off like an 80s show, but absolutely no talking happens... im subscribed to like 13 other restoration channels.

@randynovick7972 4 жыл бұрын

You know, I am really impressed with the work. I was gratified to see at least one point where you used some heat shrink and your point-to-point soldering technique is improving a lot! If I were you, I'd hit up Mr. Carlson to get his angle and explanation, if you haven't already. Pretty sure he's in Canuckistan. Very impressive. Nice work as always.

@loginregional 2 жыл бұрын

Sometimes I think he's been possessed by the Ghost of Rogers, developer of the Rogers Batteryless. There are some that say the CFRB (1010AM) was for Canada's First Rogers Batteryless (as I recall from the 70s) but there have been others that claim otherwise. Where can I get an Electrohome Television? Oh, and the "Mastercraft" branded meter... made in China.

@malleusmaleficarum9248 4 жыл бұрын

This looks rather like a forgotten KGB "tell us true" machine...

@bigmacintoshishe 4 жыл бұрын

ахаха, мы используем паяльник

@TheSae24 4 жыл бұрын

a mistake, perhaps this device was used by simple kind American guys in Vietnam

@kremlebotche7946 4 жыл бұрын

@@bigmacintoshishe видишь, а их током били

@user-wc6vb3fn1s 4 жыл бұрын

@@bigmacintoshishe не открывай им тайны терморектального криптоанализа

@buival6993 4 жыл бұрын

Бабушкин утюг КРУЧЕ

@Dougallism420 2 жыл бұрын

1920's; "You are the ground wire."

@kenball1980 4 жыл бұрын

2:02 I was expecting one of those loud screeching screws that groans with protest the entire way. You're right, that crack is super satisfying. Great video, Subscribed.

@richardlincoln8438 4 жыл бұрын

The faceplant scene in the media cabinet was well done. I could almost hear the terrified scream from the poor bewildered parts... 👍💪

@MrGmoney48 4 жыл бұрын

Dude, you never disappoint. OUTSTANDING work!!!!!

@TheBioWanderer151 4 жыл бұрын

lmao! I was not expecting the Electroboom reference, nor was I ready for it XD

@scottcates 2 жыл бұрын

How deliciously analog is this device! It's 100 years old and still choochin' but my super-electronic battery charger from last year already gave up the blue smoke.

@JohnSmith-rm7xk 4 жыл бұрын

The fact that you stamped the letters to match is why I watch your channel. It’s that extra touch 👌🏽 and the fact that you slam your face into the sandblaster shield.

@SkyTechElectronics 4 жыл бұрын

I'd never even heard of vibratory rectifiers. I'd love to see the output from this on a scope. Great video!

@vincentrobinette1507 4 жыл бұрын

I agree that it would be interesting. It would seem that it would be necessary, to make sure the resonance of the vibrator is right at line frequency, so the contact is made right at the crest of the AC wave form. With a new carbon block, it would be heavier, and would tend to lag in phase just a little. As it lightens up from normal consumption, the resonant frequency would rise, which would tend to make contact before the crest. a dual trace oscilloscope would tell the tale!

@GREQ 4 жыл бұрын

Nice! Soldering skills have levelled up since last time!

@HandToolRescue 4 жыл бұрын

Haha of course!

@lowpowermodelife 2 жыл бұрын

I had an audible “oh my god, this guy is good” moment with the disk with staggered holes drilled. bravo, hope to buy one of your wrenches sometime.

@wesjb94 2 жыл бұрын

I am always fascinated by this man's abilities. 28 minutes of essentially silence and I was entranced the whole time.

@zxggwrt 4 жыл бұрын

We didn't have ground wires when we were kids. We survived just fine! 😂😂 Most of us!

@HandToolRescue 4 жыл бұрын

Well the ones that didn't aren't here anymore, haha.

@jeffr0 4 жыл бұрын

[Me eating crayons] I'm fine as long as I wear my helmet.

@Southwind2014 4 жыл бұрын

So that why my dad always made us kids plug things in for him.

@AtomicReverend 4 жыл бұрын

Its 120v the risk of serious injuries in the event of malfunction is pretty low other then you get a hell of a shock especially if it's the hot wire not the neutral wire. Small appliances today (usually) have at least two layers of insulation between the conductive components of the device and any part of the device you can touch. To achieve this cheaply, often the outer casing of these devices are made entirely of plastic or some other non-conductive material back, in the days when law suits were rare they didn't worry about this at all. The grounded plug outlet wasn't even common until the 1960s and today it's only seen on items that are either used in damp areas or some times have relatively High amperage requirements.

@zxggwrt 4 жыл бұрын

@@AtomicReverend Yes sir it will buzz you pretty good. It's important that it not pass through an important part of your body like the heart so just try not to ground one hand while grabbing hot wires with the other! I see this charger has little rubber triangles for feet. That probably helped.

@tewksindahat 4 жыл бұрын

100 years ago when we were told not to put our hands on something, this is how we thinned out the herd.

@watrgrl2 4 жыл бұрын

Lmao! Unfortunately now it’s done by viral epidemic while an imbecile is your president.

@rickcrooker2407 4 жыл бұрын

Your overall knowledge and attention to details is amazing.

@TomTrustworthy 4 жыл бұрын

Loved the Electro boom ending, he's great. Very cool item to restore.

@kyledecampos3436 4 жыл бұрын

That work bench has been know by the state of California to cause cancer lol

@davehorlacher 4 жыл бұрын

If it ever caught on fire.. I would burn for 9 days

@abysspegasusgaming 4 жыл бұрын

Nah, it's known by the state of cancer to cause California.

@fromtheusawithlove 4 жыл бұрын

Waiting for it to spontaneously combust...

@planejet42 4 жыл бұрын

Wooo Cleveland! Back when we actually used to make stuff.

@lnwolf41 3 жыл бұрын

Found this very interesting, and enjoyable. Surprised at how good of condition the metal was in. Since it was a pulsing charge, I think it helped de-sulfate the battery plates while charging it. Did you find out why it did not work the first time?

@stuartcrosbie8830 2 жыл бұрын

Watching some older videos over again and still enjoy them. You were wrong about the best sound on earth because that is actually the sound of my notification to say you posted a video.

@serhnesterenko3238 4 жыл бұрын

Шикарно , если есть прошлое тем более сохранёное значит и будет будущее.

@communismman1471 4 жыл бұрын

Damn wish I could get my hands on one of those

@johnclarke6647 4 жыл бұрын

Nice job. I had to rebuild my little 1.0 amp Exide charger from the 1970’s a few years ago. I had to rebuild the half wave bridge rectifier. I put in larger diodes that would handle more current (5A). After the repair I put my VOM in the circuit and it still provided 1.0 amps.

@jamesg744 4 жыл бұрын

👍 I know you probably heard this a million times but do you have to go back to videos to remember how you put stuff together or do you just have one of those amazing memories

@disprtim 4 жыл бұрын

The centre of that coil reminds me of a bundle of fuel rods from a nuclear reactor.

@mred8002 4 жыл бұрын

I would think it puts out a helluva magnetic field at those ends. Looks like it would be electromagnetic.

@Bugdriver49 4 жыл бұрын

I assume they used rods instead of stacked plates to reduce the eddy currents...?

@rasalghul3533 4 жыл бұрын

Hahaha, I like the ElectroBOOM reference. Good job as always

@systemsrenegade9888 4 жыл бұрын

Beautiful resto you did exactly what need to be done without ruining it's age , ie. you painted what needed painting you replaced what needed to be replaced what needed to be replaced but kept it to the age it was brought out in.

@rameshkancharla3330 4 жыл бұрын

Very well done. Attention to every minor detail is simply amazing.

@galentangleborn4625 4 жыл бұрын

Wait... you can still buy bakalite?! :) HAZZAH! I have a couple projects I want to have that 1920's look.

@HandToolRescue 4 жыл бұрын

McMaster Carr has it. Now called Garolite.

@coffeeman885 4 жыл бұрын

@@HandToolRescue of course mcmaster carr has is. those guys have everything.

@animeangel1983 4 жыл бұрын

Hopefully they removed what ever toxic chemicals were in bakelite and the absolutely dreadful smell when it gets wet...it will turn your stomach awful.

@MrSqu1nty 4 жыл бұрын

@@animeangel1983 nope, it would be a different thing entirely if they did that (they do), garolite is still as stinky and chippy and dirty as you probably remember.

@animeangel1983 4 жыл бұрын

@@MrSqu1nty Makes me wonder how they get away with that now.

@kjamison5951 4 жыл бұрын

Should have a sticker “CAUTION - User serviceable parts inside.”

@sheep1ewe 4 жыл бұрын

Built in an era when people was not expected to be total lowdonks.

@chrismayer3919 4 жыл бұрын

You're too skilled, and everything goes smoothly; Where are all the explosions and screams and psycho drama and stuff like that?

@johnellison3030 3 жыл бұрын

That's on Electrobooms channel mate.

@6AL-4V 4 жыл бұрын

When I saw the sand blaster start up I thought, this should be good. Wasn’t disappointed. Still, the sprint start one was the best!

@Zeph_ 4 жыл бұрын

Best sound on earth is when my notification pops up with your new upload

@ThatBum42 4 жыл бұрын

Man, this thing was made in the wild west days of electrical safety. Scary!

@johanneswijenbergh2762 3 жыл бұрын

It is amazing to see how you unscrew and put back every part of the object without losing track. Do you make pictures of the object to now what part goes where..........beautiful restorations, all of them, I like the Ball Engine........Keep it up !!!

@bgdavenport 3 жыл бұрын

This was a challenging restoration. I have a variable voltage transformer for a vintage GE desk fan that died and I haven't the guts to touch it! You've got some moxie!

@joselrodriguez5999 4 жыл бұрын

10:11 Never gets old! LOL

@Owiko7 4 жыл бұрын

10:11 What my food sees through the door of the microwave.

@jorgefsanchezmarin 8 ай бұрын

Sin duda, eres un genio de la restauración de herramientas y equipos antiguos. Al nivel de Mr Patina... Creo que ustedes dos son los líderes en el oficio. Felicitaciones 😊.

@timsmith1589 4 жыл бұрын

Dude that's champion bro. Old school stuff like that is awesome. That thing will out last the new ones 100 to one.

@razzymarcus8044 4 жыл бұрын

Ray Romano back at it again

@aserta 4 жыл бұрын

17:09 because that's how all of the connections used to be when this came out of its factory. The solder is modern.

@KJ-kw7gh 4 жыл бұрын

aserta soldered electrical connections have been around for a looong time. In any home wired prior to the 1940s, most junctions would have been soldered. Vintage electrical equipment (radios, fans, phonographs, etc.) have soldered connections. Crimp connectors on the other hand, were invented in the 50's. Just somebody did a quick and nasty splice on a broken wire.

@SkigBiggler 4 жыл бұрын

The Greeks had solder of a sort for making metal connections. Solder is not new

@Cyberpuppy63 2 жыл бұрын

It's really interesting, that this battery charger was thrown out. If it were several years old, in 1929 - no surprise, since it's possible many items were tossed into the garbage, at the onset of the Great Depression. Shops and garages closed in droves, if they didn't have good quality replacements or even good repairs [ which your repair suggests, indirectly ]. Nice restore! Valuable find!

@cprogrck 4 жыл бұрын

Mind blown! I was trying to figure out that circuit the whole time till the end. Amazing!

@user-ds6sp7jm3m 4 жыл бұрын

Если бы использовал СИНЮЮ изоленту, то работало бы без вибраций и искрения.

@andyshevchenko5616 4 жыл бұрын

Без искры работать не будет!. А как эта зарядка серет в сеть! Жаль что он рядом магнитофон или приёмник не поставил..

@psevdotrofeuszebra7936 4 жыл бұрын

@@andyshevchenko5616 Так приёмников то было 10 шт на всю ПЛАНЕТУ!

@andyshevchenko5616 4 жыл бұрын

@@psevdotrofeuszebra7936 10 это ты загнул конечно. Да и передатчики по этому принципу тогда работали..

@ShortCircuitRu 4 жыл бұрын

@@andyshevchenko5616 в те времена выпрямитель мог быть только таким. Ну ещё 2-машинным агрегатом.

@alexzaitcev2528 4 жыл бұрын

Пишут, что крышка изначально была, просто на данной зарядке не сохранилась.

@Nerd3Ddotcom 4 жыл бұрын

2:40 No ground wires. Ah yes, a device made in the time when people were expected to know they shouldn't bathe with battery chargers and the people who didn't know were quickly removed from the gene pool.

@ScottGrammer 2 жыл бұрын

It's a synchronous mechanical rectifier. The first car radios used vacuum tube that required a power supply voltage of about 150 volts. This was obtained by using a "vibrator" that rapidly switched battery power on and off to a transformer primary coil. The transformer then stepped the battery voltage up, and a synchronous rectifier built into the vibrator converted the high voltage AC back into DC.