Hey guys. I have to say "thank you" again to everyone who donated after the last video. As a reward for the donations I sent an envelope with some little goodies to everyone who wanted some. Out of a few hundred people, five or so addresses are still missing and there is an easy way to check if you're one of them: I tried to send an email to everyone who donated, so in case you haven't gotten one, please check your spam folder or check if your inbox is full ( yes that has happened with at least one of you). In case you haven't heard from me, feel free to just send me a quick email: inventordonations@gmail.com the same goes for basically anyone who lives inEurope (EU+UK) and hasen't gotten an envelope yet. Your stuff should have arrived by now. In that case, send an email. Don't answer here in the comments, because you don't want to post your personal address here. Cheers, Gerolf
I would like to publicly thank those who support you via Patreon so that we who are on fixed incomes and can't afford to do so can freeload on their generosity. That repurposing of the advertisements into a wall display is beautiful. I have no doubt that the advertisers who originally made them would have done something similar to display them in a booth at a trade show. Far better than relegating them to a landfill.
It might be nice to scan and make those photos available online? (High res photos. Or multiple lower res and one of us can use some super-resolution techniques to enhance the image stacks)... maybe. Or not.
I worked for Mohawk Data Sciences from 1979 to 1982 as a field engineer in the UK and repaired alll of the equipment in those pictures - what an amazing find.
You guys should reach out to your old bosses and try to track down the owners or their kids, they might like to have it as memorabilia, hehe perhaps even get yourself a sales commission out of it lol
6:06 - That's not a drill bit, stricktly speaking, but a 'plug cutter'. It's purpose is not to make a hole, but a plug like the one you hold up at the end. Best kept sharp and should be run at fairly slow speeds to prevent overheating. Best wishes from a Norwegian woodworker.
I use them as a quick way of making dowels for joining corners on furniture. They make a quick, strong, joint, and are much quicker to make than cutting a mortise and tenon.
Thank you for your comment. I assumed it was logarithmic, but did not find any information about that in the service manual / circuit diagram. I Then actually read a number of forum posts, where people were arguing back and forth about the meaning of the letters A and B. And you know how forums are. Eventually someone came along and said, that the letters are meaningless, and I was non-the-wiser. After installing the new logarithmic pot, it was pretty obvious though, that I had chosen the correct part as the volume controlls worked as intended.
@@ThePostApocalypticInventor The forums are right, the letters A and B can be interchangeable depending on manufacturer, country of origin, year of manufacture etc.
@@Loreroth - yep, I will explain how for others reading this. There are 3 terminals for the main section of each gang of the pot. Simply rotate the knob to exactly half way and measure the resistance from the center terminal to each of the outside ones. If the measurements are (almost) the same, then it's a Linear pot. If the measurements are significantly different (eg: 3 times higher on one side), then it's a Log pot. Make sure to measure both gangs of stereo balance pots, since in older amps those sometimes had log on one side and anti-log (reverse log) on the other gang... those special pots are very hard to buy now days.
@8.30, a 1980s Pioneer amplifier. That thing blasted the Scorpions rock and songs of reunification. Probably played 99 Red Balloons during the Cold War. My small salute to music from Germany! Nice Video and Greetings from America, John
More likely played 99 Luftballons ;) ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Fpu5a0Bl8eY.html I remember this as my first cool music lesson in middle school, sigh! Also it definitely played some Kraftwerk for sure.
I love that you always take time to give some short historical descriptions about the companies behind the stuff you find and also that you tell us how tool names are pronounced in German, helps me practice using my old school German :). I was watching the video using headphones and practiced saying "Schlagring" and "Langlochbohrer" several times, my wife who where sitting next to me wondered what the hell I was talking about :). Keep the Repair-A-Thon's coming, they are awesome 👍
Extremely interesting as always, and as often happens in this small world of ours, the gentleman from the UK who worked for Mohawk Data Sciences. An acquaintance of mine, when I lived in North Carolina, was an Electronic Tech who worked for Mohawk. His territory ran from southern Virginia to South Carolina and he was “on the road” whenever a service call came in. This was from 1976 to 1982 and the Volvo 164 he drove had nearly 400,000 miles on it mostly from those “service calls”. Those early systems were foreunners of what we have today; who would have thought. Great Video !
Boy I hate to see all the devastation caused from the Beatles but what I would give to have all those logs! I recently ordered a sawmill and given the current prices of lumber I’d be rich given that much timber! Haha great job as usual!! Always great to save something from the scrap
Both countries have similar issues with forest management. Not that my country, the USA, has anything to brag about in that regard. If we want decent, usable, beautiful forests in the future, the time to do something about it is now.
Really good way to put it, I appreciate the channel for the same reasons. The deeper descriptions and sense of perspective do a lot to make something on the other side of the world feel familiar. The corn fields of central Texas couldn't be more different from a German forest but that intro still felt just like my own memories.
That pump would make a great pressure washer with a bypass valve,return hose and lance. If the valve was put near the outlet, you could use a pressure release valve, dumping the release stream into the supply tank. Love the picture box, always good to see what you come up with to reuse old stuff.
I owned that model of Amplifier in about 1983. It was around 8 years old when I purchased it. It was a fantastic amp. I was really surprised to see one again!
That lightbox / picture frame arrangement is really nice. I'm moving into a new flat soon, and I'm planning on putting together my own mood lighting system. Looks like I'll have to find someone who can supply large format bridgport blueprints or something!
Agreed, I have been using it since the late '80s in the UK. Americans tend to use DeoxIT which seems overly priced for a switch cleaner/lube. But in the video he stated the pot tracks were damaged in places and no amount of cleaner will fix that.
You, young man are an inspiration - I hope young kids get onboard. Too late for me, but I have ordered a new shed with a ramp, just to shhow I'm not done yet!
I am another old-timer with a shed. Let's make a deal. As long as we can get to a bench, let's keep tinkering with something, just to stay sharp. As our young TPAI often makes art, we can make art about our memories, just to remind the next generations of what they missed out on, the old days!
Hi from England. As a saw doctor I have sharpened s lot of the drills you have picked up. The last one you used is s plug cutter you need to slow your speed down to stop the burning and the resulting plug can be used to fill in holes. The other bits from that selection I used to regularly sharpen for people up until I left the industry a couple of years ago. Learn how to sharpen the properly and they can out live most of us.
Me being an oldtimer on this channel I think you have found the right balance with your "old-lectured-videos" which I like most, with the new people arriving because they like repair-a-thons. I always loved your mixture of art and technology, just like Oskar Sala did it. I hope you can put more of your own BG music
Awesome video! I couldn't believe the pump was made of brass! Someone didn't know what they had, I suspect. As an audiophile and someone studying to be an electrical engineer, I enjoyed seeing an old amp get some TLC. All around, this was a really fun video.
I always enjoy your efforts at resurrecting old electric motors and pumps from the scrapyard. I also enjoy your background narratives. Keep up the interesting projects.
Having done many, many scrap pump rebuilds, heat is the way to get the pipe threads free, and a decent pipe wrench. Also, cardboard for a cereal packet would have been fine as a gasket of the flat faces.
Yes, heat to dull red, and as it cools drop a few drops of old ATF into the thread area, and it will come loose, especially a brass and cast steel part, as the different thermal expansions will break the old thread seal compound up, along with the heat. I find the covers of telephone books work better, though you can use pretty any thin card stock as well, all you need is something like shellac, or even varnish, to provide a hardening layer to the board to make it watertight and stem tight.
I have found that a huge vice and a 3' stillson wrench is the right job to break a thread, I haven't found one that I couldn't break, up to about 2". But heat is the obvious treatment after brute force.
@@bootsowen 3ft stillson is a good start, but cooking the joint for 10 minutes works wonder. On really tight stuff Stillsons have a habit of crushing the pipe wall, I used to go to a chain wrench if it was really tight, especially on 4" and 6" stuff, sometimes with a 10 foot pipe on the end . Thankfully I don't do that job anymore :D
Hi, all the way from South Africa. From a town called Grabouw, which you should know is named after a town in Germany. Nice to see some pump work ( I'm a pump and irrigation specialist ). The pump you have there is a multistage pump, meaning more than one impeller, they can deliver a lot of volume and pressure. Same as there, we have spruce all around us in our mountain valley. Keep up the good work, i wish I could donate, but with the damage covid had done, it's impossible. I recommend everyone to watch your channel, it's inspiring and I think you make n big change in the world. From me, a great big THANK YOU! Ps: i love the repair-a-thons! I love tinkering, and you almost always give me ideas for something I am doing or wanted to do. Fun fact: 3 phase 400v motors can run both ways, but will only work correctly one way for pumps because of the shape of the impeller!
Schalk, ou boet, you have pine trees growing all around Ģrabouw, if they haven't burned down or been cut. The spruce Gerolf rants about is a Picea species that does not grow in South Africa and as such has been used for the large beams in Peregrine's restaurant after the fire. Regards from an ex-Grabouer.
I really love your repairathons. Here in Sweden we have very strict laws around waste. As soon as someone has thrown something away the waste company owns it. So it is actually a crime to take things from a junkyard or even from the garbage collection in a apartment building. The junkyard doesn't sell waste either as they do in Germany. So it's a tragedy going to the junkyard and see perfectly fine objects in the bins but not having the ability to take it with me. Keep up the good work!
Don't feel bad about your "rant" on the beetle infestation. There is the same problem here in the USA in Alaska. They have a horrible problem with their spruce forests being decimated. By the way your treatment of the old photos looks awesome.
I love hearing about the everyday details of Germany. We have an Asian beetle killing all our Ash trees in the USA. In many cities, my own of Roseville MN included, it has killed or is killing many Ash trees lining our streets. They were planted in similar mono culture style in the 50s and 60s.
The American chestnut was demolished when my mother was a child. The original banana plantations were also annihilated in a similar way in the 50's. (Yes, the bananas we eat now are NOT the same as those in the 40's) There's also Dutch Elm disease. They happen, and it doesn't even need us to help.
Some of my relatives settled in Herkimer, and my Uncle was a forest manager in that area. The family has been there for generations, originally coming from Germany. My father designed computer equipment in the early '70s, but never worked for MDS. I love the photos and how you treated them, what a great find. Sorry you didn't get a drawing board though.
That retro computer photo panel is one of the coolest things! I love it! Also, sad to see those spruce trees dying off. Spruce is fairly expensive here in the US (at least the high quality, instrument grade stuff), but I really love it for how rigid and light it is.
I'm a cabinet maker. The mortising bits require an additional fixture/piece for your drillpress that keeps the square chisel part stationary and the drillbit spinning.
I like the backlit pictures, a really nice retro feel. I always enjoy the Repair-A-Thons, it's nice to see high quality tools and items brought back to life.
The old MDS photos look awesome with back lighting. Always look forward to your content and videos. Keep up the good work and hope you feel better soon.
6:19 that's an "Zapfenschneider" it's used to Produce "Querholzplättchen" for hiding Screw's or Nuts which was drilles out before with an Forstner Bit... or just create an Tenon.
Another wonderfully video , you are a remarkable young man with great care for things tossed out on waste dumps and scrap yards . Keep it up as you show with a little time and knowledge things can be recycled . Most old and crusty tools are well made from quality materials not like the Chinese made rubbish.cheers from Australia
You have amazing talents my friend, I appreciate you reminiscing about your childhood forest play area. Let's all make the world a little better starting with ourselves. My best to your continuing PAI adventures!
19:30 of the video, PROCON PUMP!!!! Under the Faber castel box was a Standex Procon vane pump. A great pump for high pressure hot and cold , used in professional coffee machines and carbonators. Would be a great find!
I loved the pictures at the end! There is a certain charm to images like this, and the light installation was a really clever idea. The strobe flashing would probably give me an epileptic seizure, but the slow, random switching, and breathing effect is really nice. Great episode!
6:05 That bit is for making plugs, not holes. Those pictures were a great find and that's an awesome job of preserving that piece of history. The orange hue of the lights goes well with the vintage look.
BRAVO!!!! I love this kind of content! The garage tinkerer disappeared in the USA about the same time online games came about. This is the type of stuff men should be doing when they get home from work/on weekends!
Love the light board , I assume that these would have been back lit originally via incandesant or CCFL lamps... you've amalgamated old and new , great work Gerolf 👍👍
The backlit retro picture idea is fantastic. Another idea you might try out is taking old through-hole PCBs from old electronics and desolder all components and install them on the wall as well with back lights. The different color PCBs one can find makes for an awesome low-light decoration and they look amazing!
34 years ago, I began as a carpenter and joiner using a bit and brace for drilling. The brace went, in favour of an electric drill, I cut off all the diamonds from the bits to fit a "Jacobs" chuck. They have all since been replaced with newer ones.
You are on the next level, that is some skill right there. Creates or fixes things from junk that would cost hundreds or thousands in the retail shops. This channel is easily in my top 3 channels on youtube. Keep on the good work my friend. T. Fan from Finland
Thanks again, Gerolf! Great episode. Herkimer, NY also is home to Herkimer diamonds (a cool type of clear quartz) and there are actually a couple of mines you can go to and try your hand at finding the motherlode! I took my son there a few years back and it was great. I appreciate your work and thanks for the envelope! It just arrived.
I absolutely love the console under the picture box; looks like Dr Who meets Space 1999. This was one of your best presentations. My Compliments. I am an older former Computer Operator from the 1960s-1970s. I never worked with that company but am well familiar with many of the smaller vendors of that era. That brought back memories. Thank you.
The light box is fantastic. I also appreciate 80's audio gear. Repairing gear from this decade is where my electronics career began back in the day. Nice work. Cheers.
I'm a big fan of the Teleharmonium, the worlds first electronic musical instrument from over 100 years ago. All the blueprints and schematics are available on line and I've always wanted to find a way to display them in a way that makes best use of their technical beauty, you have (literally) shown me the light. Thank you.
@@1pcfred True words spoken there fore sure! I was reminded the other day that in school in the 70's, a teacher said that we all need to know how to do math because we will not always have access to a calculator. Not only do I carry a calculator everywhere I go today, I also have a Supercomputer in my pocket... Lol LLAP
@@BrucesWorldofStuff I was in school around the same time and got the same spiel about calculators from my teachers. That's why they were teachers I guess. They only knew what was, not what would be. We still need to know how to do math. But long form calculations? Not so much.
I grew up in the Mohawk, Herkimer New York USA area as a child, finding those MDS advertisements were a surprise for sure! I am so glad that you had saved them and created the beautiful display. I love the Repair-A-Thon videos and your wonderful channel!!
The hollow drill bit is for cutting cross-grain plugs, to conceal screws or plug old holes. Measure the plug diameter and team it up with a drill bit that makes that hole. The process is called plug and pellet joinery.
I really like the picture frame. Those old photos really look good. The other way to clean those drill bits is to just drill with them. They are very hard to sharpen and if their tips are worn they are hard to fix. I had always though about if one could chuck them in a lathe and drill them out and insert new ones.
The cylindrical cutter my father called a Bung cutter. My father used the bungs to hide a screw & hole . They hide better than a dowel because wood grain is going the same direction, and not the end grain from a dowel.
Thanks to you l have repaired my 30 year old cordless Makita drill which l was told by many people that it was a piece of junk. Encouraged by that repair l fixed the on/off switch on my Krups coffee bean grinder. Hopefully there will be many more people encouraged by your content to repair and not just throw away.
I love your content! So good to see someone values and restore "trash" these days. And also liked the decoration idea, it turned out really cool. I'm always waiting for your next video eagerly. Keep on!
I like the way you used those old pictures. Really a nice touch that no one else would have bothered with. You could even sell it later and buy more repair items. Good job!
You should absolutely produce more repairathons in the future. I get lost in the electronics parts, but I still watch as if I understand everything. The lighted pictures are fantastic.
That fat drill bit that makes the dowel like pieces is a "bung Cutter" it makes them to be glued into fastener holes on boats or furniture. Awesome find !
Funny Fact: i actually own one of those Pioneer amplifiers, the exact same model anf colour and guess what i found to in a scrap yard but i have all the knobs, had been in the rain for years and only thing i had to was clean it and change the speaker connectors.
Great episode! :) I liked the all-brass water pump (such nicely done machine) and the retro photo display cabinet is very pleasant to look at. Congrats on these works! Thanks. Cheers. :)
Sometimes the center shift on potentiometers can be removed and swapped around. The short leads on the pot with the ring terminals can be extended with short pieces of solid copper wire.
The town of Herkimer NY is located on the Mohawk River. Across the river from Herkimer is German Flatts NY. There were many German American communities in this area dating back prior to the American war of independence. The central New York state area has a very rich history of industry and manufacturing. Thanks for your excellent videos.
The side channel pump should be able to pull somewhat of a vacuum and prime itself it has to pull up less than 1-2 meters. Even dry this should work as it works similar to a regenerative blower. If it does not it may be just a multiple stage centrifugal pump. Side channel pumps often have smaller and wider plates in their stack, your pump only has one size which may suggest centrifugal. RPM is a good indicator too, a centrifugal is likely to run at 3000, a side channel more like 1500 and its kind of screaming when its pumping.
Those old drilling tools aren't just "still good for something", they're top quality tools that any hobby carpenter would love to own and use. Similar quality modern bits would set you back at least a couple hundred euros, so you'd better store them carefully for future woodworking projects.
LOVE your repair-a-thons! Keep them up! Those beetles are also doing major damage here in Alberta, Canada. We had a HUGE forest fire a few years ago, partly fuelled by all the trees that had been killed by the beetles. I agree that Mono-cultures are not a good thing - everything needs variety!
That is fascinating that the spruce is dying to the beetle. In the states we have the exact same problem affecting pines. Huge swaths of forest are lost every year, mostly where it was planted in monoculture, but in general is sweeping across the country. They do not touch the spruce or fir, but in every other way the pest looks identical as does the damage that it leaves.
I had the Pioneer SA-408 amp which I bought as a student back in the '70's. It was a fantastic amp and it has lasted for many decades and is still going strong! I gave it away only recently to an enthusiast of old gear and vinyl etc. The front panel was identical to the 410.
I can't remember when I last saw an old fashioned scrapyard here in the UK. Now its all about recycling centres and once your stuff hits their bins it becomes the property of the council and you can get busted for removing stuff from those same bins.
Copper-->steel threaded connections will seize due to galvanic action as seen here, but often a blow torch will cause the copper to expand at a different rate than the steel and break the corrosion and allow disassembly.
I live about 30 min from Parsippany, NJ in Somerville. You'd be amazed how much industry used to be in NJ. Almost anything you could think of was produced in NJ at some point, especially industrial machinery. Unfortunately a lot of those factories now sit abandoned and in disrepair.
..the old pictures look awesome, that was a great idea. And Im feeling with you about the forests, we have the same in here (Im from one of the neighbouring countries of germany)...
Another wonderful episode full of amazing finds, well worth preserving/ restoring. Good on you for seeing the worth in others 'junk' and in some cases making them more beautiful than they were originally.
I don't live in Herkimer, but nearby, and have been there many times. It is located in the Mohawk Valley area of New York State, at one time an important manufacturing center. That region was, in fact, once known as "The American Ruhr". I don't know what the economic conditions are like in Germany's Ruhr region today, but the Mohawk Valley area of New York is in a very sad decline. On a happier note, your display of those old advertising pictures was fantastic -- really well done!
its absolutely amazing what gets thrown away that still works, even with a bit of TLC. I wonder if this happens all the time in UK recycling centres too, I'm sure that not much gets salvaged here which is a real shame. Loking at things like that pump it could easily be used by businesses and factories that need a decent water flow. I do love that you restore and use these items. Fantastic work
