Today I learned that 3mm TIG rod is just a naked 200A slow-blow fuse 😅 But seriously thank you for all the pulling wrenches and moreso for the wisdom you share.
I find your videos more entertaining than most television programs these days, keep them coming, always things of interest and a good picture of how much waste we humans produce, so much stuff thrown away that still preforms works with a minimum of repair and effort so much unnecessary waste it is sad really and what could be cooler than a spot welder[built by] named after Doctor Who's arch enemy lmao "Dalex" very cool old stereo i still have the first turntable i bought in 1981/82 a Pioneer pl 200 still works perfectly
The brand name Dalex is older the the Doctor Who´s enemy Daleks. The dalex company produce high quality welding gear since 1945. But it sounds funny. I like the Doctor Who television series.
You made my day man. Plus, today is a public holiday. Estonian victory day marks the victory of Estonia and neighboring Latvia in the Battle of Cēsis against the Baltische Landeswehr on June 23, 1919. God bless you.
@@Minecraftzocker135 Estonians fought with red army too peace treaty was finally concluded with the red army on 31 December 1919, and the ceasefire came into effect on 3 January 1920.
Here's a tip if your clamp meter doesn't go high enough connect 2 wires in parallel to one of the outputs, measure one of them, then double the reading ;) To measure a low resistance, connect that resistance in series with a known resistance, apply a voltage, measure the voltage drop across the low resistance, then use ohms law
At currents that high the two wires in parallel need to be as equal in length as possible. Pretty difficult to accomplish to do that. Even a slight imbalance will greatly influence how the two currents are distributed among the wires.
@@vbinsider That's a given, like both wires being the same size If the result is critical, you could measure both wires individually and take the average
@@sparkyprojects Are you sure you mean you would measure the both of them and then take the average? I feel like the answer would be to measure both of them and then add them together and that would be your total current for the circuit
I agree with you completely on your intro. I really enjoy turning other people's junk into something useful and repairing throw-away appliances. Not too many like you or me out there. I watch all your videos, maybe not the day they come out but will catch up on a "rainy" day or on a day I just need some rest. Thanks for what you do,
Genuinely one of the best channels on RUclips, nay the Internet! RUclips forced you out of my feed for a time but I'm always coming back to learn more. You have such stores of knowledge and you inspired me to salvage as much as I can and reuse stuff instead of throwing it in the garbage like the majority of people in modern day. I thank you for continuing to publish content for us! ❤
Whats reality TV?!?!? Love your work. Love scrap yards, old tools and old audio equipment. Very good looking Grundig amp setup and the white was a good choice for that cabinet! I use a Sansui 60's valve amp that i've had for about 20 years.
Always a pleasure to watch your videos. I liked seeing the dual record player. I used to have it as a kid (probably still exists, and stored somewhere at my parents place). The center pin used to be replaceable by a very ingenious longer pin, with a bunch of moving parts on the shaft. You had to press it down in the center and twist it, to lock it in place. You could then stack multiple records onto the center pin, and they would be played automatically one after the other (the movable parts on the shaft would click away, allowing for 1 record to be lowered onto the turntable. It was a real piece of technical ingenuity back in those days. It was fun to be reminded...
Yeah, I remember the center pin thingy. It never seemed like a good idea, because the first record remains and the next clatters down on it. maybe scratching it? There is also a bit of slippage and the second record is slower. If you have several records, the last one has quiet a bit of accumulated slippage, and really starts groaning. Maybe high quality systems overcame this - ours wasn't even stereo...
@@dougerrohmer LPs and 45s shouldn't scratch as the label is thicker than the rest of the record, so the grooved areas don't touch. To stop the lightweight 45s from slipping, especially with heavier tracking crystal cartridge pickups, some 45s have a toothed pattern around the label that locks the records together.
Hey, friggin' awesome work on that Dual turntable :). The mechanism is a thing of beauty and a joy for ever. Incandescent bulbs don't really flicker, as the filament has thermal inertia and simply can't react fast enough to flicker at 50Hz. Fluorescent lamps, on the other hand, were a lot more susceptible to this - and that's why you get fixtures of two FLs in industrial settings, one of these lamps is phase-shifted relative to the other by a capacitor in line with the lamp. Otherwise you'd get a stroboscopic effect making rotating parts seem like they're still, leading to workplace accidents.
Totally enjoyed today's video. Back a half century ago I sold high end stereo components. My favorite turntables to sell were Duals. As you quickly determined hardened lubricants are a problem on older equipment. Another issue that often arises with use is worn, or hardened, rubber drive wheels. Back in the day they were not particularly expensive. Don't know about now. Thank you for enhancing my retirement. ;)
The stereo restoration brother.. Beautiful work!! Been following you for years since you fixed that PlayStation 1 you found in that Ebay junk box you bought years ago!!
In the US in the 70s I repaired a lot of Duals, BSR, and Garrard Turntables mainly for old grease or hard rubber tires. The busiest time was just before Christmas.
When you go to a "junk yard", I call it the opportunity yard. Think of all the things that can be made with all of this material. I'm kind'a like you. Growing up, I didn't have a lot of money to buy new stuff. So getting used stuff was the way do go. Getting used equipment and transforming it into something that I can use is the challenge. Good job by you in all of your projects. Just remember what Ben Franklin said, "Necessity is the mother of invention".
One thing to keep in mind about "fake" things from the that era isn't that they were necessarily trying to be faithful to it looking like an item. Plastics as an industry were booming, so they were marketed as something of a status symbol. Everything from fake wood-grain laminates, to plastics flowers, to dinner- and drink-ware to appliances. One of the appeals of plastics was they were available in virtually any color and could be made in virtually any shape.
Thank you for the Dual turntable repair! I have two (dual Duals, you might say) that I hope to repair. I'm sure your information will be super helpful.
You didn't destroy a wrench. You modified it for clearance. That stereo system looks fantastic, and I'm not surprised that it "just works." I like the format of segments versus presenting all the finds and then going thru them.
I'm 73, and remember Grundig stereo components and Dual turntables. Love these videos, and as an aspirig German speaker, I really like when you toss in random German words for technical things. Keep it up!
You can fix the deformed cones of your speakers with a piece of a sticky tape. Just stick the tape on the cone and pull. It's very satisfying to see them pop out
@@elukok I made a tool for doing this repair with a vacuum, it is made from a clear plastic cup that I cut the bottom out of and melted a large air bleed hole in the side. I couple the vacuum hose to the back and slowly close off the bleed hole to increase the vacuum pull on the dust cap. The clear cup lets me see when it has popped out. A friends second hand shop was always needing this repair work done, kids see speakers and just cannot resist poking that cap in...
The old GRUNDIG Hi-Fi gear is amazing. Both the amp and the tuner are made in 1965 , their predecessors were the SV50 and RT50 . The SV50 were the absolut first transistor stereo amp in the world which become series production. In those days Grundig was a major player in the world with abt.40,000 employees at 7 production plants throughout the world. I remember the days when our local radio dealer got this setup in his shop displaed . it cost a fortune, unobtainable for me. Years later I got the bigger brother of the amp , the SV80 and the RT40 radio tuner from a neighbor who had this componets stated defect and bought himself a new equipment. After a carefully inspection of this service friendly gear, it were only a blown fuse in the amp .New fuse and the setup run like new. I should mention that Grundig use only RCA semiconductors in their products. RCA made high reliable semiconductors in those days.
Very entertaining, especially the hum from those transformers when you crank them up. Thank you for putting this together to save us from doing our own experiments without having your expertise. And you are forgiven for the spanner melting too, as some tools were never any good, so we might as well have some fun.
10 years... I remember when I was watching your videos like 7 years ago on my old account. I think a year ago I found ur video and the intro reminded me of your old videos.
Im in the midwestern US and work on a lot of west german and some east german radios sets. Its amazing how far ahead and higher quality that stuff was compared to the us at the time. One thing I would like to warn you about is the crappy ERO capacitors in your radio and amplifier. They like to short and explode.
Totally unexpected…your demo record, the Clancy Brothers and Tommy makes traditional Irish music. Liked this video very much. Less complex repairs and electronics still valuable to many of us.
I very much appreciate the historical references such as the town that designed and built Dual turntables had a watchmakers tradition. That’s the kind of tidbit that brings viewers back to your channel. I grew up surrounded by Garrard and Dual turntables and was fascinated by their mechanical “wizardry “ as you put it. I expect you will resell that stereo and I imagine you will sneak a Bluetooth module into it to make it more useful. Maybe not. A good place to find a buyer would be a retro vinyl shop which seems to be a growing market these days at least in the Seattle area. Thanks again.
Happy you were able to rescue the Grundig Hi Fi. Would like to have owned a Dual turntable. In the 70's all I could find at my budget for my projects were the ubiquitous BSR turntables. I appreciate the time taken for this repair -a - thon, and enjoyed the ''restoration'' project the most. Maybe that style would be less demanding and would free up more of your time ? Vielen dank Gerolf.
“Grundig was one of the biggest players” nice pun 😊 The plug on your spot welder, was made by Harting. We used many different types of these in the injection mould industry.
For the chunky transformer, You can use a simple chisel (or a sharper one intended for metal) to cut through the copper. This way, you wont generate dust and scatter the copper everywhere.
That connector on the Dalex spot welder is likely a Han connector made by german company HARTING! They produce very unique modular connectors both in Germany, and in their facility in the United States, often these are used for high voltage machinery that may need to be serviced as an alternative to more permanent and difficult to remove connectors. I worked for HARTING for a short bit and was very impressed with not only their bespoke engineering process for unique connectors, but their absolute german organization and attention to detail. It is no surprise their connector has held up in this application, I hope you'll be able to use more of their connectors in the future!
Loved the 90% mechanical control logic on that turn table. It's also cool to see one that DOESN'T have a rubber belt drive to go hard (Causing inconsistent record RPM), or to eventually disintegrate into chunks and get stuck on all the mechanical parts. Designers today would have wanted to use multiple motors and more processing power than was used to get man to the moon ! :D
And he popped it. Photonicinduction laughs at your 1 kilo amp. I have been watching you for years, I have got no complaints about the content. You keep making them and we will keep watching them.
Dear sir, I greatly appreciate what you do, and am heartened that there is a person and persons who also repair and reuse. It is a great and noble calling to preserve and prolong the use of things, especially well made things. Things once made with art and intention and craftsmanship. Which are scarce or pricy these days. Thank you
Absolutely great video! Those were some serious Amps you worked with! I especially loved your restoration of the Dual record player because of personal memories. Thanks Gerold!
Always nice to see your videos when you are working on things.... i work on Pfaff Nähmaschinen so I can tell the best thing to remove resin is real turpentine. stay tuned.
Loved the hifi centre rebuild you did a great job and these older systems have a much richer sound than mp3. Plus it'll last a lot longer than the e-waste you pay top dollar for if you can find a store that actually sells them.
Very nice work, that's a very big transformer! And a cool stereo 😊 Also i wanted to say that i really agree with the points from the intro. Sad but true, the internet was for learning from the beginning but not really any more. I quite often get surprised reactions about "how can you know x", even on subjects i really only have a remote interest for. I really struggle to understand this, since there are many hours in a day and many days in a life, with so much information easily available. How can a person overlook learning at least some of it, some related to work and life? Most of the time, its more of a philosophical/anthropological annoyance, but sometimes a very tangible hinderance in finding information myself. A made up example could be: "yes, i have tried turning it off and on, im looking for why it makes this noise when i do", but all results are about basic troubleshooting.
I worked in Fords many years ago , they had spot welders on the car production line. These spot welders were fitted to over head gantries and counter balanced. The worker would use very little effort to move them around. Years on these welders and gantries were removed and robots fitted ,,, getting rid of staff and keeping the production line working 24hrs per day seven days a week. Loved the old music system,, im playing with old Xboxes and video games. Would love to see you repurpose one of these.
I'm with you. As a kid, I didn't have a lot of money. So, if I wanted something, I'd have to find the materials and build it my self. I love going to a " Scrap". Most of the stuff there isn't really scrap.It's available materials.
Man... I absolutely love your videos! I highly appreciate and adore restoration jobs as well as the whole phylosophy of restoration! Thank you for good time you gave me! My head stopped aching!
yeah I'll give tou a like. You did a fantastic job on that hifi! My mate has a grundig LP player that I fixed. had the same issue as that one - mechanism siezed up/ I took it home and used nitro from my rc car to free it up. Still works to this day and yep, does 45's, 33's and 72's. Fantastic record player. :)
Gerolf, what about building speakers for your "new" Hi-Fi? Here in the US, old Hi-Fi speakers are fairly easy to come by, but often blown or rotted through. Maybe specifically find a busted set and show us how to redo the surrounds on them? Refinish the cabinets?
Hello playing with those transformers making big currents reminded me of some high current testing work I did years ago on current transformers for distrubtion systems. We had to test at 20 times rated current around 8000 amps through the single turn primary we where testing.The LV supply cables had to be fastened carefully as the magnetic fields would push the cables apart violently. It was a interesting job being paid to play with with transformers and your video reminded me of those good times .
1:30 ‘The victory of the vapid and the mundane’ How you have the nail on the head sir. If only the young Tik Tok addicts would take a minute to understand that too.
I had several dual t/t. The first, a 1019 model. Very nice with a Shure N7D cartridge. Next, a Dual CS 721 direct drive, the absolute best t/t with a Shure V15 Type III cartridge. I was VERY impressed. This table is still for sale for ~ $500 to $1K.
In the early 90's at Technical collage we messed around doing a similar transformer destruction, trying to blow up large electrolytic caps. Gave up when or huge (50kg+) transformer drew to much current and melted a 32A extention cable!
Finally a new video after a long time 😢, please keep your flow of videos coming through to keep us in a good mood to keep living in this world of frustration ❤
Those speakers look like KEF's. BTW, if you want to repair the grilles on the tweeters, try a vacuum cleaner suction pipe on it to pull out the screens.
I love this channel, especially for his love of old technologies, not useless technologies just old technologies. Respect for the old ways which some may say are over-engineered and respect for the people who came before us that created this technology. I hate throwing things away when they still work or have use left in them.
hey gerolf, in respect to your intro, there's a word for that feeling of false normalcy-hypernormalization. for reference, that word was coined by the fall of the soviet union. it really describes what I've been feeling for the last three years.
I like your pushing the limits projects and how to measure the outcomes. I really enjoyed your commentary on the drive mechanism for the turntable and freeing up the controls.
Very nice saves , the stero is very nice . I know that the sound from old stereo and radio speakers are sometimes awesome and can't seem to be duplicated today. Whatever you do seems to always be interesting. Thank you
Love your content... it's been more than 3 years since I've found your channel and ever since I always look forward to new videos from you. Ever since I saw the first video 1 question has been wondering inside my head 😂 where did you learn all this stuff... I mean all these electrical tools and devices you repair. Where did you learn that? Perhaps you should do a video in the future in which you explain to us normal people how did you educate yourself!
For rewinding transformers, if you are not willing to invest in magnet wire, you can remove the thick PVC insulation and replace it with heat shrink tubing. Most that would cover this thick wire has a voltage rating starting at 600V.
Latelly i've fullfilled my dream to be a guy that can repair everything. My gf firmy believe, that i can handle all of the repairs. Thanks pai for inspiration
My initial thought on the other signal wire was that it might be a thermistor in the transformer to detect overheating during heavy use.
Oh, of course my favourite RUclipsrs watch eachothers content 🙄
I'm glad that Big Clive is a Post Apocalyptic Inventor watcher
Spot welders are usually only on for fractions of seconds. Hard to get them to overheat...
@@jackmclane1826fractions of seconds over thousands of hours of continuous duty add up don't they
It make sense, but when Gerolf said the box can stop the current after some time, I thought it would be a sort of current sensing, like he spotted.
Today I learned that 3mm TIG rod is just a naked 200A slow-blow fuse 😅 But seriously thank you for all the pulling wrenches and moreso for the wisdom you share.
So Russians with their nail as a fuse were not that far off after all XD
Watching the magnetic flux from that big transformer move those huge wires on the secondary side is awesome
I am always happy to hear TPAI's philosophizing in the first few minutes of each video. It always seems to resonate with me.
I find your videos more entertaining than most television programs these days, keep them coming, always things of interest and a good picture of how much waste we humans produce, so much stuff thrown away that still preforms works with a minimum of repair and effort so much unnecessary waste it is sad really and what could be cooler than a spot welder[built by] named after Doctor Who's arch enemy lmao "Dalex" very cool old stereo i still have the first turntable i bought in 1981/82 a Pioneer pl 200 still works perfectly
The brand name Dalex is older the the Doctor Who´s enemy Daleks. The dalex company produce high quality welding gear since 1945. But it sounds funny. I like the Doctor Who television series.
You made my day man. Plus, today is a public holiday. Estonian victory day marks the victory of Estonia and neighboring Latvia in the Battle of Cēsis against the Baltische Landeswehr on June 23, 1919. God bless you.
And the red army ?
@@Minecraftzocker135 Estonians fought with red army too peace treaty was finally concluded with the red army on 31 December 1919, and the ceasefire came into effect on 3 January 1920.
Here's a tip if your clamp meter doesn't go high enough
connect 2 wires in parallel to one of the outputs, measure one of them, then double the reading ;)
To measure a low resistance, connect that resistance in series with a known resistance, apply a voltage, measure the voltage drop across the low resistance, then use ohms law
At currents that high the two wires in parallel need to be as equal in length as possible. Pretty difficult to accomplish to do that. Even a slight imbalance will greatly influence how the two currents are distributed among the wires.
@@vbinsider That's a given, like both wires being the same size
If the result is critical, you could measure both wires individually and take the average
@@sparkyprojects Are you sure you mean you would measure the both of them and then take the average? I feel like the answer would be to measure both of them and then add them together and that would be your total current for the circuit
@@zeddpilsner4 Measure each, take the average and double for the total.
(x+y)/2*2=x+y
I agree with you completely on your intro. I really enjoy turning other people's junk into something useful and repairing throw-away appliances. Not too many like you or me out there. I watch all your videos, maybe not the day they come out but will catch up on a "rainy" day or on a day I just need some rest. Thanks for what you do,
"Victory of the vapid and mundane" - A spot on observation and summarized very well.
Hello from Detroit Michigan brother thank you for sharing your knowledge and expertise and for taking us on your adventure through the scrap yard
Nice to have you on board! sending my best regards back to Michigan!
Hello from Muskegon, MI friend!
Hello here from Berkley Michigan! 😊
@@miahsbrokengarage 275/94
getting some mad photonicinduction vibes from this!
Witnessing defeat of the vapid and mundane. Well done Gerolf!
Quality old Hi-Fi equipment holds up really well!
It's a joy to see this mechanism working again is exactly why I work a job repairing and building things.
More audio equipment restorations, please!!! Excellent content, Gerolf!!!
That stereo was a true diamond in the rough. Thanks again for another top quality presentation!
Genuinely one of the best channels on RUclips, nay the Internet! RUclips forced you out of my feed for a time but I'm always coming back to learn more. You have such stores of knowledge and you inspired me to salvage as much as I can and reuse stuff instead of throwing it in the garbage like the majority of people in modern day. I thank you for continuing to publish content for us! ❤
Whats reality TV?!?!? Love your work. Love scrap yards, old tools and old audio equipment. Very good looking Grundig amp setup and the white was a good choice for that cabinet! I use a Sansui 60's valve amp that i've had for about 20 years.
Always a pleasure to watch your videos. I liked seeing the dual record player. I used to have it as a kid (probably still exists, and stored somewhere at my parents place). The center pin used to be replaceable by a very ingenious longer pin, with a bunch of moving parts on the shaft. You had to press it down in the center and twist it, to lock it in place. You could then stack multiple records onto the center pin, and they would be played automatically one after the other (the movable parts on the shaft would click away, allowing for 1 record to be lowered onto the turntable. It was a real piece of technical ingenuity back in those days. It was fun to be reminded...
Yeah, I remember the center pin thingy. It never seemed like a good idea, because the first record remains and the next clatters down on it. maybe scratching it? There is also a bit of slippage and the second record is slower. If you have several records, the last one has quiet a bit of accumulated slippage, and really starts groaning. Maybe high quality systems overcame this - ours wasn't even stereo...
@@dougerrohmer LPs and 45s shouldn't scratch as the label is thicker than the rest of the record, so the grooved areas don't touch. To stop the lightweight 45s from slipping, especially with heavier tracking crystal cartridge pickups, some 45s have a toothed pattern around the label that locks the records together.
@@toomanyinterests Interesting, thanks.
@@dougerrohmer You're welcome
Nice to see some good old school Irish music in the cabinet
I love all your restorations, but I particularly love the old stereo equipment resque missions. Those pieces are so nice!
Hey, friggin' awesome work on that Dual turntable :). The mechanism is a thing of beauty and a joy for ever.
Incandescent bulbs don't really flicker, as the filament has thermal inertia and simply can't react fast enough to flicker at 50Hz. Fluorescent lamps, on the other hand, were a lot more susceptible to this - and that's why you get fixtures of two FLs in industrial settings, one of these lamps is phase-shifted relative to the other by a capacitor in line with the lamp. Otherwise you'd get a stroboscopic effect making rotating parts seem like they're still, leading to workplace accidents.
Totally enjoyed today's video. Back a half century ago I sold high end stereo components. My favorite turntables to sell were Duals. As you quickly determined hardened lubricants are a problem on older equipment. Another issue that often arises with use is worn, or hardened, rubber drive wheels. Back in the day they were not particularly expensive. Don't know about now. Thank you for enhancing my retirement.
;)
Nice! Seeing this I remember when Photonicinduction made a beast of a transformer with a secondary winding done with 400 mm^2 cable)
The stereo restoration brother.. Beautiful work!! Been following you for years since you fixed that PlayStation 1 you found in that Ebay junk box you bought years ago!!
In the US in the 70s I repaired a lot of Duals, BSR, and Garrard Turntables mainly for old grease or hard rubber tires. The busiest time was just before Christmas.
When you go to a "junk yard", I call it the opportunity yard. Think of all the things that can be made with all of this material. I'm kind'a like you. Growing up, I didn't have a lot of money to buy new stuff. So getting used stuff was the way do go. Getting used equipment and transforming it into something that I can use is the challenge. Good job by you in all of your projects. Just remember what Ben Franklin said, "Necessity is the mother of invention".
Nice stereo recovery! and animal sounds too! Thanks!
One thing to keep in mind about "fake" things from the that era isn't that they were necessarily trying to be faithful to it looking like an item. Plastics as an industry were booming, so they were marketed as something of a status symbol. Everything from fake wood-grain laminates, to plastics flowers, to dinner- and drink-ware to appliances. One of the appeals of plastics was they were available in virtually any color and could be made in virtually any shape.
That 60's grundig system is fabulous, a wonderful find.
Thank you for the Dual turntable repair! I have two (dual Duals, you might say) that I hope to repair. I'm sure your information will be super helpful.
You didn't destroy a wrench. You modified it for clearance. That stereo system looks fantastic, and I'm not surprised that it "just works." I like the format of segments versus presenting all the finds and then going thru them.
Your trips thru the scrap yard are very entetaining. I wish we could do that here in the states, but they are too wooried about liability to allow it.
I'm 73, and remember Grundig stereo components and Dual turntables. Love these videos, and as an aspirig German speaker, I really like when you toss in random German words for technical things. Keep it up!
Had the same radio and amplifier in my living room as a kid, such memories of pressing those round buttons!
You can fix the deformed cones of your speakers with a piece of a sticky tape. Just stick the tape on the cone and pull. It's very satisfying to see them pop out
A vacuum cleaner works as well for that.. but since these are workshop speakers, the chance of the cones getting bumped in again is rather high ;-)
Thanks, this sounds like a good idea and i actually have a speaker that needs this 😁
The vacuum cleaner is too loud and would ruin the experience
@@WooShell Vacuum is too strong, it can definitely damage some of the speakers. Some light sticky tape sounds like a better idea.
@@elukok I made a tool for doing this repair with a vacuum, it is made from a clear plastic cup that I cut the bottom out of and melted a large air bleed hole in the side. I couple the vacuum hose to the back and slowly close off the bleed hole to increase the vacuum pull on the dust cap. The clear cup lets me see when it has popped out.
A friends second hand shop was always needing this repair work done, kids see speakers and just cannot resist poking that cap in...
The old GRUNDIG Hi-Fi gear is amazing. Both the amp and the tuner are made in 1965 , their predecessors were the SV50 and RT50 . The SV50 were the absolut first transistor stereo amp in the world which become series production. In those days Grundig was a major player in the world with abt.40,000 employees at 7 production plants throughout the world.
I remember the days when our local radio dealer got this setup in his shop displaed . it cost a fortune, unobtainable for me.
Years later I got the bigger brother of the amp , the SV80 and the RT40 radio tuner from a neighbor who had this componets stated defect and bought himself a new equipment.
After a carefully inspection of this service friendly gear, it were only a blown fuse in the amp .New fuse and the setup run like new. I should mention that Grundig use only RCA semiconductors in their products. RCA made high reliable semiconductors in those days.
Very entertaining, especially the hum from those transformers when you crank them up. Thank you for putting this together to save us from doing our own experiments without having your expertise. And you are forgiven for the spanner melting too, as some tools were never any good, so we might as well have some fun.
10 years... I remember when I was watching your videos like 7 years ago on my old account. I think a year ago I found ur video and the intro reminded me of your old videos.
Immer wieder ein ehrliches Dankeschön dafür, daß du diese alte, qualitative Technik ins Leben zurück holst.
Im in the midwestern US and work on a lot of west german and some east german radios sets. Its amazing how far ahead and higher quality that stuff was compared to the us at the time. One thing I would like to warn you about is the crappy ERO capacitors in your radio and amplifier. They like to short and explode.
Totally unexpected…your demo record, the Clancy Brothers and Tommy makes traditional Irish music. Liked this video very much. Less complex repairs and electronics still valuable to many of us.
I very much appreciate the historical references such as the town that designed and built Dual turntables had a watchmakers tradition. That’s the kind of tidbit that brings viewers back to your channel. I grew up surrounded by Garrard and Dual turntables and was fascinated by their mechanical “wizardry “ as you put it. I expect you will resell that stereo and I imagine you will sneak a Bluetooth module into it to make it more useful. Maybe not. A good place to find a buyer would be a retro vinyl shop which seems to be a growing market these days at least in the Seattle area. Thanks again.
Happy you were able to rescue the Grundig Hi Fi. Would like to have owned a Dual turntable. In the 70's all I could find at my budget for my projects were the ubiquitous BSR turntables. I appreciate the time taken for this repair -a - thon, and enjoyed the ''restoration'' project the most. Maybe that style would be less demanding and would free up more of your time ? Vielen dank Gerolf.
“Grundig was one of the biggest players” nice pun 😊 The plug on your spot welder, was made by Harting. We used many different types of these in the injection mould industry.
The spot welder and the vintage stereo were great finds.
2:37 For a second, I thought that was a Dalek, and you had narrowly avoided being EXTERMINATED! rofl!
For the chunky transformer, You can use a simple chisel (or a sharper one intended for metal) to cut through the copper. This way, you wont generate dust and scatter the copper everywhere.
That connector on the Dalex spot welder is likely a Han connector made by german company HARTING! They produce very unique modular connectors both in Germany, and in their facility in the United States, often these are used for high voltage machinery that may need to be serviced as an alternative to more permanent and difficult to remove connectors. I worked for HARTING for a short bit and was very impressed with not only their bespoke engineering process for unique connectors, but their absolute german organization and attention to detail. It is no surprise their connector has held up in this application, I hope you'll be able to use more of their connectors in the future!
Loved the 90% mechanical control logic on that turn table. It's also cool to see one that DOESN'T have a rubber belt drive to go hard (Causing inconsistent record RPM), or to eventually disintegrate into chunks and get stuck on all the mechanical parts. Designers today would have wanted to use multiple motors and more processing power than was used to get man to the moon ! :D
Its interesting how much smaller 150mm^2 cable is without the fire rated insulation i always see it in
One of the best content creators on the internet you are. Also i was taught at a very young age about high voltage. If you hear the hum you better run
And he popped it. Photonicinduction laughs at your 1 kilo amp. I have been watching you for years, I have got no complaints about the content. You keep making them and we will keep watching them.
"We have only two things to worry about - that things will never get back to normal, or that they already have."
Dear sir, I greatly appreciate what you do, and am heartened that there is a person and persons who also repair and reuse. It is a great and noble calling to preserve and prolong the use of things, especially well made things. Things once made with art and intention and craftsmanship. Which are scarce or pricy these days. Thank you
That Dalex spot welder really does look like something i could imagine The Daleks using in the 1960s. ;)
Absolutely great video! Those were some serious Amps you worked with! I especially loved your restoration of the Dual record player because of personal memories. Thanks Gerold!
For everyone that likes the Apocalyptic Inventor, please support as well.
For the Inventor, thank you for your wonderful content!
Yea! Another scrapyard adventure! I look forward to seeing you're videos all the time thanks for sharing! 😊
The quality content this man puts out on a regular basis is insane.
Back in the day we used a small neon lamp's flicker to set the turntable speed.Regular incandescent doesn't flicker.
Always nice to see your videos when you are working on things.... i work on Pfaff Nähmaschinen so I can tell the best thing to remove resin is real turpentine. stay tuned.
I love the cameos that previous repair-a-thon things make in repair-a-thons - 'oh look it's brazed vice!'
Loved the hifi centre rebuild you did a great job and these older systems have a much richer sound than mp3. Plus it'll last a lot longer than the e-waste you pay top dollar for if you can find a store that actually sells them.
Came for the amazing scrap yard find, repairs and commentary. Stayed for the tug boat and animal noises! Always enjoy your videos.
Really cool to see the turntable working again.
Man, you must have one hell of an electric bill.
"The victory of the vapid..." Well said. I would add that there is an abundance of inanity, too.
Really like the stereo, those old units seems to last forever. Great content as always btw. :)
Great video 👍So enjoyed your fun comments when testing the transformer's and the light tone of the whole video and insights 😊
Very nice work, that's a very big transformer! And a cool stereo 😊
Also i wanted to say that i really agree with the points from the intro. Sad but true, the internet was for learning from the beginning but not really any more.
I quite often get surprised reactions about "how can you know x", even on subjects i really only have a remote interest for. I really struggle to understand this, since there are many hours in a day and many days in a life, with so much information easily available. How can a person overlook learning at least some of it, some related to work and life?
Most of the time, its more of a philosophical/anthropological annoyance, but sometimes a very tangible hinderance in finding information myself. A made up example could be: "yes, i have tried turning it off and on, im looking for why it makes this noise when i do", but all results are about basic troubleshooting.
you really make that stereo... white... jaiks... I love that original wood finish.
This is great! You have the complete package. Thank you .
Yes. Exactly.
I worked in Fords many years ago , they had spot welders on the car production line. These spot welders were fitted to over head gantries and counter balanced. The worker would use very little effort to move them around. Years on these welders and gantries were removed and robots fitted ,,, getting rid of staff and keeping the production line working 24hrs per day seven days a week. Loved the old music system,, im playing with old Xboxes and video games. Would love to see you repurpose one of these.
It is great to see you back. A quality system draws a lot of money now.
I'm with you. As a kid, I didn't have a lot of money. So, if I wanted something, I'd have to find the materials and build it my self. I love going to a " Scrap". Most of the stuff there isn't really scrap.It's available materials.
Man... I absolutely love your videos! I highly appreciate and adore restoration jobs as well as the whole phylosophy of restoration! Thank you for good time you gave me! My head stopped aching!
yeah I'll give tou a like. You did a fantastic job on that hifi! My mate has a grundig LP player that I fixed. had the same issue as that one - mechanism siezed up/ I took it home and used nitro from my rc car to free it up. Still works to this day and yep, does 45's, 33's and 72's. Fantastic record player. :)
Gerolf, what about building speakers for your "new" Hi-Fi? Here in the US, old Hi-Fi speakers are fairly easy to come by, but often blown or rotted through. Maybe specifically find a busted set and show us how to redo the surrounds on them? Refinish the cabinets?
Hello playing with those transformers making big currents reminded me of some high current testing work I did years ago on current transformers for distrubtion systems. We had to test at 20 times rated current around 8000 amps through the single turn primary we where testing.The LV supply cables had to be fastened carefully as the magnetic fields would push the cables apart violently. It was a interesting job being paid to play with with transformers and your video reminded me of those good times .
i can't believe you found a stereo that old and it works! that would sell for quite a bit here in the u s a.
Yelled, "Greetings," and melted his lug wrench? Weird you want, weird you get.
1:30 ‘The victory of the vapid and the mundane’ How you have the nail on the head sir. If only the young Tik Tok addicts would take a minute to understand that too.
Wow, this stereo sounds a lot better after you'd finished that white paint job.
Who would had thought?
I wonder how green paint sounds.
I had several dual t/t. The first, a 1019 model. Very nice with a Shure N7D cartridge. Next, a Dual CS 721 direct drive, the absolute best t/t with a Shure V15 Type III cartridge. I was VERY impressed. This table is still for sale for ~ $500 to $1K.
In the early 90's at Technical collage we messed around doing a similar transformer destruction, trying to blow up large electrolytic caps. Gave up when or huge (50kg+) transformer drew to much current and melted a 32A extention cable!
Finally a new video after a long time 😢, please keep your flow of videos coming through to keep us in a good mood to keep living in this world of frustration ❤
Those speakers look like KEF's. BTW, if you want to repair the grilles on the tweeters, try a vacuum cleaner suction pipe on it to pull out the screens.
I love this channel, especially for his love of old technologies, not useless technologies just old technologies. Respect for the old ways which some may say are over-engineered and respect for the people who came before us that created this technology. I hate throwing things away when they still work or have use left in them.
Oh man, bigstackD casting would have loved all of that wire!
hey gerolf, in respect to your intro, there's a word for that feeling of false normalcy-hypernormalization. for reference, that word was coined by the fall of the soviet union. it really describes what I've been feeling for the last three years.
I like your pushing the limits projects and how to measure the outcomes. I really enjoyed your commentary on the drive mechanism for the turntable and freeing up the controls.
Love the old stereo and what you did with it. Cheers
Aha - a Clancy Brothers & Tommy Makem album! My dad had a bunch of their records so I grew up with them in the 60's. Great episode by the way.
Very nice saves , the stero is very nice . I know that the sound from old stereo and radio speakers are sometimes awesome and can't seem to be duplicated today. Whatever you do seems to always be interesting. Thank you
The analog clamp meter is amazing
Love your content... it's been more than 3 years since I've found your channel and ever since I always look forward to new videos from you. Ever since I saw the first video 1 question has been wondering inside my head 😂 where did you learn all this stuff... I mean all these electrical tools and devices you repair. Where did you learn that? Perhaps you should do a video in the future in which you explain to us normal people how did you educate yourself!
For rewinding transformers, if you are not willing to invest in magnet wire, you can remove the thick PVC insulation and replace it with heat shrink tubing. Most that would cover this thick wire has a voltage rating starting at 600V.
I restore Dual turntables....millions sold. I primarily restore 1219, 1229, 1019. I love them. Beautiful units. I own a collection of 21 Dual units.
Latelly i've fullfilled my dream to be a guy that can repair everything. My gf firmy believe, that i can handle all of the repairs. Thanks pai for inspiration