UPDATE: So I’m running a 3-part LIVE workshop that takes us on… A Time Travel Through Vintage Electronics. We’ll rewind the clock, dive into the tech of the times… (and study the very history of how things were broken and repaired has evolved) The workshop is coming soon, but if you're reading this then you're in luck (or not)... And there's still time for you to sign up using the link below: www.menditmark.com/mend-mark-workshop The workshop dates are mentioned in the link above too.
How on earth did you acquire such intricate knowledge of your subject Mark? You surley must have started when you were very young. With your enthusiasm for the work, you make it look so straightforward but to be able to identify faults amongst such a hornets nest of components is a truly gifted talent. Your videos are an absolute joy to watch.
It's actually not so difficult. I got my knowledge as a kid, unmounting all kinds of stuff and trying to fix it. I got electrocuted by touching the inside of an old radio while it was on and never again!😉 I collected valves/tubes for their beauty and used them later to build amplifiers and transmitters ... which was my little forbidden secret. And then I started to succeed in fixing stuff, because in order to make my electronics work, I needed to troubleshoot them. After a lifetime of building computer hardware prototypes, I enjoy twice as much watching other people to fix stuff, than doing it myself. I actually hate fixing stuff now 😄
@@y2ksw1 That's a fascinating background story. A wee bit of modesty is common in brilliance. What you and Mark both have is a supreme fascination/interest in the subject matter...that's the 'x' factor which drives folk like yourselves into seeking such an unusually high amount of knowledge, and, being able to instantly access it to equally instantly analyse problems. That combination of attributes is very rare in any field. It's a bit like comparing a computer programmer who does the work for the job, and another programmer who does the work for the love of the art of programming. One of them might get the job done, but done to a low/average standard over the longest timeframe, while the other always delivers work of the very highest quality over the shortest timeframe.
Standard appliance technicians 4 year apprenticeship. There's nothing arcane about what he's doing. Mind you, he's rather well set up on the diagnostics equipment front.
In the mid-60s, my parents had exactly this Modell.Es was in our living room.I did an internship as a radio and television technician in 1976 and repaired the radio more often than it was defective. Greetings from Germany.Thank you great video
A paper business card drawn through switch contacts will polish them right up. No need to bend them or wedge a Q-tip in there. You can start with one slightly soaked with DeOxit, then move to a dry card. Works the best for all of the pinball machines and old telephone contacts that I restore. Love you videos Mark!
Hello Mark it’s a Yank from across the pond and I watched your full video last night on fixing the Cassette Player. I must say I am amazed at your ability and skill level. We live in a Disposable Society now a days. As a kid I was constantly taking anything apart before my Mom got home, those old heavy rotary phones were weapons and could save your life if a sneaky burglar came through the window from the fire scape. Those were tough times, we all had to pull our weight, shoveling snow, collecting soda pop bottles for the deposit, etc. This early obsession with wondering how things worked stayed with me through out life. I became a plumbing and heating mechanic and I learned on the fly. Oh I would attend any seminars for new equipment. I eventually got a Class C electrical license for low voltage. But I was originally a one man band, but a neighbor liked that I tried to do the best job, most people don’t understand various types of heating systems, Steam, Hot Air or circulating Hot Water. But as the old saying goes, Anything is Easy when you’ve done it before. LOL My friend was retired from IBM & NuTone, he was the only person I knew who had an Oscilloscope in his basement workshop. As time went by I showed him the sequence of the electrical system, most were a simple Series Circuit. But much like yourself he started to repair a broken controller box. This was when a controller had multiple ports and to let the controller handle other boilers, which was fine for a temporary repair in a Blizzard. But Insurance companies tend to object when a possible problem occurs and even causing a fire, which had nothing to do with the controller. It’s a bit ironic that people spend thousands for the system and jam it into a small closet or cupboard ? Usually next to a washing machine and clothes to near the firebox, or a leaky oil line, not a good idea. Although Paul knew how to rewire a controller, Insurance and Liability can make not a good idea. But as I started, we live in a Disposable Society, I still enjoy the challenge of fixing stuff. Perhaps it started at a young age with watching Sherlock Holmes ? Oh btw Mark, Thanks again for showing us that many things can be repaired and restored to great working quality. It’s sad that many of the Joes Fix It Shops are rare and far between. Oh Mark btw, do you have a website or any contact information. I recently started an old hobby again, collecting Vynil records and Vintage HiFi components. Cheers Mark 👍🇬🇧🍺
If you ever need dual can caps, they still make them. I service tube amps and regularly order them. Usually from Hotrox or Watford valves. JJ, F&T and ARS are all decent and always available. Excellent video, as usual!
A lot of the German made radios had a lot of features like this in this era. They were made so well too. Lovely radios when you get them going. A lot of the paper caps and electrolytics in the filter will be needing replacing in these, but it is always good to see some proper trouble shooting done instead of just wholesale replacing the capacitors. A lot will be like this one and not operational due to the capacitors and sometimes resistors that drift in value. Those old paper capacitors go acidic inside and the paper breaks down,. They basically turn into resistors internally, which is why a lot of restoration channels will just replace all paper caps. The "Black Beauties" are also paper and foil inside. Guess it is hard when you are doing it for a customer to know how far to go as it takes time. The Ferrite rod in this likely originally had rubber mounts and plastic brackets that held the ferrite rod in place. Epoxy will stop it moving for a while. I usually put the bluetooth on the tape input on these when I do them. That way the bluetooth only works if tape input is selected. I designed my bluetooth module to run off the 6.3V AC heater line rather than adding an extra transformer :) There is usually plenty of power available and the bluetooth takes very little current.
YOU ARE A PUBLIC MONOLIT TO WHAT MEANS: "KNOWING HOW ELECTRONICS AND ELECTRICITY WORKS"! GREAT CONTENT DUDE, VERY VERY HIGH QUALITY TECH CONTENT ORGANIZED FOR THE ORDINARY CROWDS! WOOW! GREAT JOB Mr. ;) ❤❤❤
Mark, lovely old radio! I've collected vintage valve radios for 14 years, and what I've found is that initially when a radio is turned on after many years of slumber, it'll work okay for a while, but then the old capacitors will short or go open, sometimes explode after an hour or two's usage, so that's why it's advisable to replace as many caps as possible, even the low voltage ones!
Mark makes working on electronics like tying shoes. He has such a positive demeanor when approaching a electronic problem. If only World Leaders be more like Mark 😊
My late Father had 1 of these radios at our home in Essex...I think it was Bush but looks identical. I am in awe of your knowledge, skill and patience.
Outstanding from beginning to end. I could smell the hot tubes and transformers and was instantly transported back to my 1970’s bedroom and my grannies radiogram. Bliss. 👏👏👍😀
55:09 Has anyone noticed the remark on the back cover: “MIT Armstrong-Lizenz hergestellt”? Edwin Armstrong, inventor of FM-radio still held some of his patents in 1957 (at least in Germany). FM radio became very important in Germany in the 1950s after the loss of many AM broadcast frequencies after the war.
Incredible the engineering of Valve stuff. Love it. I trained in the RAF in late early 80s,just as valves were being phased out in the Airfield Radar world So we trained on valve transistor and intergrated circuitry. Happy days 😎
As always, a pleasure to watch Mark. You really brighten up my day. They sure don't make them like they used to, in many ways it's so much easier today.
Congratulations,friend Mark. I from Perú.I dont speak english. Y me gusta como abordas las reparaciones,con tu carisma y toda la instrumentación profesional. Dios te bendiga. God blessyou.
My Mrs recognises the opening music when I start a video she always makes me go back to the start so she can see you get a shock 🤣 great work as always Mark, keep it up 👌🏻
Amazing radio. I have the 1956 American version, different colors and the 4 smaller speakers are mounted on the side. Still all original, still gets played a few hours a week. 😊
Марк, вы великолепный мастер своего дела. Всегда улыбка, несмотря на некоторые вещи что идут не так. Спасибо вам. Всего доброго семье. Привет из России 🇷🇸
I'm surprised you haven't had a lot of valve radio restorers on here telling you to change all the wax capacitors as they go leaky. But to be fair I think you have changed all the high voltage wax caps i.e. plate to grid couplers - you just didn't make a big point about doing it. There's plenty of videos out there doing that anyway. If other wax caps fail it probably will still work. It all depends on if you're doing a deep restore or just trying to get it to work reliably at a reasonable cost. Great video again, always enjoy watching your work.
As always attention to detail and their is one thing I do like very much is just the humming of your workshop with just your voice and the sound of your tools 😊
Thanks for sharing your know how, and taking a 60+years radio and give it one more life of making music.. and demonstrating at the same time how precious thes old technologies were.. and they were within reach of the people who wanted to learn about them and repair them, right at the corner of the street, nearby. Now, try to open any recent Dac or Streamer and see if you can get it to work again.. my EAD Dac just died, and no one can repair it.. sigh. Thanks Mark! 👍
And me. 99% of the time I have no idea what's going on, but that doesn't mean I don't find his repairs/restorations fascinating! Mark certainly knows his stuff.
That's what I like about old radios, you look inside at a wonderland - unlike the single chip and one or two surface mount components I have seen on modern things, they have no soul. Most enjoyable, thanks for sharing.
Watched this with fascination, because although I'm not technically minded, the assurance displayed here made compulsive viewing. I do like restorations, and this one fitted the bill perfectly. Thank you Mark.
Fantastic Mark one of the more challenging projects you have done and certainly one of the more interesting ones too. It amazes me just how knowledgeable you are nothing seems to upset you and you keep coming through with results. keep the jobs coming Mark you have a very loyal following we continue to need a "fix" from yourself. Take care.
oh yes, it was made in Hannover, German (I'm quite close to the old Factory)Telefunken is just around here and they made fantastic Radios and Tape Players. The Tubes make a thick, loud sound. I really love them. Cheers, very nice Channel and top notch cotent.
Well done Mark saving something ending up on scrap heap I am a bit like you I try to repair them if can to much ending up on the dump good video great repair
Greetings from Wombourne, I enjoy your work and have watched many of your videos, always a pleasure. I,m glad none of the caps exploded when you juiced it up.
28:42 I was surprised the coupling capacitor for the bass speakers wasn't a non-polarized type. All-in-all a fantastic rebuild. It seems when you fix something, *it's fixed!*
You can use non polar caps for small and large signal coupling with no issues, as long as the offset voltage across it is a good bit lower than the cap's voltage rating. Polar coupling caps will introduce a tiny amount of distortion... In this old radio it wouldn't be measurable compared the amp and speaker distortions.
Amazing to watch you repair these old radios, it looks like first port of call, replace every capacitor before you start fault finding as you will probably fix 90% of the problems instantly 😂
I remember as a teenager in the 1970s being given a Grundig reel to reel tape recorder . It was enormous and the most complex mechanical and electrical monster I'd ever seen ! It was built on a cast iron chassis , and all the piano key controls operated solenoids that in turn pushed and pulled all the various pinch wheels etc on the deck . It had a total of 8 valves ( tubes), and a huge finned selenium rectifier on the power supply unit. It was only mono , but the built in speaker was huge, and the microphone was a very heavy ribbon type. All it required was the heads and pinch wheel cleaning and it worked perfectly. The neighbour who gave it to me said it was from the very early 60s ,and cost the equivalent of around £ 200 when new ( bearing in mind this was 1971 and a new Ford Escort was about ? £750 at the time!
Man, they don't make 'em like they used to... and good thing too. The transistor completely transformed electronic gadgets and made today's computers, internet etc, possible. Another great video. Excellent presentation and technical knowledge as usual. :) If I had that radio, I'd just have to try those speakers with a stereo amp and hear what they sounded like. Imagine stereo sound from that classic radio!
Omg I just found your videos , my late father use to repair TVs radios ,all those names and the components you mention brought back so many memories of when I use to watch him as a child ,im now 59, btw your knowledge is amazing how did such a young guy learn all about these old period sets , thanks great watching on a Sunday afternoon
Mark, what can I say? What a fantastic vlog, full of so much content and skill. We'll done, I always look forward to seeing your work. Wish you could be more frequent with more posts 👍👏👏👏👏
That took me back a few years. I used to sit with my Grandad in the early 70's and watch him "repair" old broken radios and anything else he could get his hands on, he never had the electronics you have, just screwdrivers, soldering iron and a hammer 😀. Brilliant stuff, liked and subscribed.
Always find these videos soothing.. a professional doing a professional job with utmost pride in his work, and some bonus ASMR from the various screws and stuff being removed 🙃 Really high quality content.
@ 51:56 those grid coupling caps have different voltage ratings because the 500v rated cap blocks off the anode voltage of the phase inverter triode to the top output valve grid whereas the 250v rated cap to the grid of the bottom output valve grid is connected to cathode of the phase inverter, thus much closer to ground potential. I have fixed countless of these radios and have experienced most of these ERO and Wima paper- foil caps failing within hours of them testing ok, problem being that they attract moisture and the paper goes acidic, so I save myself the grief of having to (almost inevitably) repair a second time by binning all of these caps at least in the audio section. Excellent video and Bluetooth tutorial!
![I.N "HALLUCINATION" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/n5B5q1Hwt_U/mqdefault.jpg)
![I.N "HALLUCINATION" | [Stray Kids : SKZ-PLAYER]](/img/tr.png)
![Lp. Точка Невозврата #8 ОСТАТОК ЧЕЛОВЕЧЕСТВА [Другие] • Майнкрафт](http://i.ytimg.com/vi/xdCPh-vicoQ/mqdefault.jpg)
UPDATE:
So I’m running a 3-part LIVE workshop that takes us on…
A Time Travel Through Vintage Electronics.
We’ll rewind the clock, dive into the tech of the times…
(and study the very history of how things were broken and repaired has evolved)
The workshop is coming soon, but if you're reading this then you're in luck (or not)...
And there's still time for you to sign up using the link below:
www.menditmark.com/mend-mark-workshop
The workshop dates are mentioned in the link above too.
Das ist großartig, Mark!
How on earth did you acquire such intricate knowledge of your subject Mark? You surley must have started when you were very young. With your enthusiasm for the work, you make it look so straightforward but to be able to identify faults amongst such a hornets nest of components is a truly gifted talent. Your videos are an absolute joy to watch.
Well said
It's actually not so difficult. I got my knowledge as a kid, unmounting all kinds of stuff and trying to fix it. I got electrocuted by touching the inside of an old radio while it was on and never again!😉 I collected valves/tubes for their beauty and used them later to build amplifiers and transmitters ... which was my little forbidden secret. And then I started to succeed in fixing stuff, because in order to make my electronics work, I needed to troubleshoot them.
After a lifetime of building computer hardware prototypes, I enjoy twice as much watching other people to fix stuff, than doing it myself. I actually hate fixing stuff now 😄
@@y2ksw1 That's a fascinating background story. A wee bit of modesty is common in brilliance. What you and Mark both have is a supreme fascination/interest in the subject matter...that's the 'x' factor which drives folk like yourselves into seeking such an unusually high amount of knowledge, and, being able to instantly access it to equally instantly analyse problems. That combination of attributes is very rare in any field.
It's a bit like comparing a computer programmer who does the work for the job, and another programmer who does the work for the love of the art of programming. One of them might get the job done, but done to a low/average standard over the longest timeframe, while the other always delivers work of the very highest quality over the shortest timeframe.
Standard appliance technicians 4 year apprenticeship. There's nothing arcane about what he's doing. Mind you, he's rather well set up on the diagnostics equipment front.
The confidence of Mark is unbelievable, an example of an expert who smiles when something goes wrong.
In the mid-60s, my parents had exactly this Modell.Es was in our living room.I did an internship as a radio and television technician in 1976 and repaired the radio more often than it was defective. Greetings from Germany.Thank you great video
And now you drive a Ford Probe.
Always a great night when Mark gets a new video out!
Yes indeed !!
Especially as it’s an hour long
bro it sets up my whole evening, sit down and watch MendItMark with a cuppa - love it @@king_ofgames3650
The best way to go to sleep !❤
IKR@@PuiuM3u
What an absolute gem to restore to beyond it's original capacity. Awesome work Mark
There's nothing like the glow of a magic eye. Brought back memories of when my late father used to repair these. Thanks Mark
And his Jap's eye as he waved it under your nose.
its unbelievable how the circuits were constructed without circuit boards it all hangs in the air .. brilliant repair!! nice work
31:58 Your initial repair brought Hall & Oates back together! Love your channel. Cheers from Canada!
I know nothing about electricity or electronics, but these videos are fascinating! Thank you Mark, always a pleasure!
i know quite a bit, but it facinates me too 🙂
A paper business card drawn through switch contacts will polish them right up. No need to bend them or wedge a Q-tip in there. You can start with one slightly soaked with DeOxit, then move to a dry card. Works the best for all of the pinball machines and old telephone contacts that I restore. Love you videos Mark!
Hello Mark it’s a Yank from across the pond and I watched your full video last night on fixing the Cassette Player. I must say I am amazed at your ability and skill level. We live in a Disposable Society now a days.
As a kid I was constantly taking anything apart before my Mom got home, those old heavy rotary phones were weapons and could save your life if a sneaky burglar came through the window from the fire scape. Those were tough times, we all had to pull our weight, shoveling snow, collecting soda pop bottles for the deposit, etc.
This early obsession with wondering how things worked stayed with me through out life.
I became a plumbing and heating mechanic and I learned on the fly. Oh I would attend any seminars for new equipment.
I eventually got a Class C electrical license for low voltage. But I was originally a one man band, but a neighbor liked that I tried to do the best job, most people don’t understand various types of heating systems, Steam, Hot Air or circulating Hot Water.
But as the old saying goes, Anything is Easy when you’ve done it before. LOL
My friend was retired from IBM & NuTone, he was the only person I knew who had an Oscilloscope in his basement workshop. As time went by I showed him the sequence of the electrical system, most were a simple Series Circuit.
But much like yourself he started to repair a broken controller box. This was when a controller had multiple ports and to let the controller handle other boilers, which was fine for a temporary repair in a Blizzard. But Insurance companies tend to object when a possible problem occurs and even causing a fire, which had nothing to do with the controller.
It’s a bit ironic that people spend thousands for the system and jam it into a small closet or cupboard ?
Usually next to a washing machine and clothes to near the firebox, or a leaky oil line, not a good idea.
Although Paul knew how to rewire a controller, Insurance and Liability can make not a good idea.
But as I started, we live in a Disposable Society, I still enjoy the challenge of fixing stuff.
Perhaps it started at a young age with watching Sherlock Holmes ?
Oh btw Mark, Thanks again for showing us that many things can be repaired and restored to great working quality.
It’s sad that many of the Joes Fix It Shops are rare and far between.
Oh Mark btw, do you have a website or any contact information.
I recently started an old hobby again, collecting Vynil records and Vintage HiFi components.
Cheers Mark 👍🇬🇧🍺
You cannot beat UK electronics engineering channels, so relaxing and informative. Big Thumbs Up.
If you ever need dual can caps, they still make them. I service tube amps and regularly order them. Usually from Hotrox or Watford valves. JJ, F&T and ARS are all decent and always available. Excellent video, as usual!
Mundorf make twin caps with a common ground pin too. Think it's the MLytic HV range.
Another trick is that you can often empty the old can and fit two new equivalent caps inside, since modern caps are much smaller.
A lot of the German made radios had a lot of features like this in this era. They were made so well too.
Lovely radios when you get them going. A lot of the paper caps and electrolytics in the filter will be needing replacing in these, but it is always good to see some proper trouble shooting done instead of just wholesale replacing the capacitors. A lot will be like this one and not operational due to the capacitors and sometimes resistors that drift in value. Those old paper capacitors go acidic inside and the paper breaks down,. They basically turn into resistors internally, which is why a lot of restoration channels will just replace all paper caps. The "Black Beauties" are also paper and foil inside. Guess it is hard when you are doing it for a customer to know how far to go as it takes time.
The Ferrite rod in this likely originally had rubber mounts and plastic brackets that held the ferrite rod in place. Epoxy will stop it moving for a while.
I usually put the bluetooth on the tape input on these when I do them. That way the bluetooth only works if tape input is selected. I designed my bluetooth module to run off the 6.3V AC heater line rather than adding an extra transformer :) There is usually plenty of power available and the bluetooth takes very little current.
It’s a real joy to watch someone with such competence go about doing their work.
You made a fantastic job of that Mark, especially with the Bluetooth added to it.👏👏👏👍
YOU ARE A PUBLIC MONOLIT TO WHAT MEANS:
"KNOWING HOW ELECTRONICS AND ELECTRICITY WORKS"!
GREAT CONTENT DUDE, VERY VERY HIGH QUALITY TECH CONTENT ORGANIZED FOR THE ORDINARY CROWDS!
WOOW!
GREAT JOB Mr. ;)
❤❤❤
Mark, lovely old radio! I've collected vintage valve radios for 14 years, and what I've found is that initially when a radio is turned on after many years of slumber, it'll work okay for a while, but then the old capacitors will short or go open, sometimes explode after an hour or two's usage, so that's why it's advisable to replace as many caps as possible, even the low voltage ones!
Mark makes working on electronics like tying shoes. He has such a positive demeanor when approaching a electronic problem. If only World Leaders be more like Mark 😊
My late Father had 1 of these radios at our home in Essex...I think it was Bush but looks identical. I am in awe of your knowledge, skill and patience.
Reminds of my childhood. The sound, the smell, the broadcasts. Great piece of history.
Outstanding from beginning to end. I could smell the hot tubes and transformers and was instantly transported back to my 1970’s bedroom and my grannies radiogram. Bliss. 👏👏👍😀
I learn quite a bit watching these. Thanks!
If you have a bad day, watch Mend it Mark and you will be mended to! What a guy, love it!
Thats exactly what i do!
This sort of thing makes me so grateful to whoever came up with the notion of a PCB.....
55:09 Has anyone noticed the remark on the back cover: “MIT Armstrong-Lizenz hergestellt”? Edwin Armstrong, inventor of FM-radio still held some of his patents in 1957 (at least in Germany).
FM radio became very important in Germany in the 1950s after the loss of many AM broadcast frequencies after the war.
I love the old switch gear - a solid vintage "CLICK"....how satisfying. A little finesse of the contacts and its ready to go after all those years.
Absolutely love watching your videos Mark! Skillset is off the scale and also learned a few tips and tricks!
Mark has steady hands laying those micro parts in position. Amazing intelligence Thank you.
I found myself hollering, 'watch your iron around the dial string!'.
Burned a few of them in my younger tech years😊
Great to see another cheery journey through old tech with Mark. Great content - thank you!
Incredible the engineering of Valve stuff.
Love it.
I trained in the RAF in late early 80s,just as valves were being phased out in the Airfield Radar world
So we trained on valve transistor and intergrated circuitry.
Happy days 😎
Dude, your work on the jam box 📻 was amazing. The fact that you customize pieces - so cool!
I think Telefunken Largo still the best...👍👍👍
Superbe video!!! I am an old man and I remember these. They were expensive and very good. Cheers from Patagonia. Argentina
As always, a pleasure to watch Mark. You really brighten up my day. They sure don't make them like they used to, in many ways it's so much easier today.
Congratulations,friend Mark. I from Perú.I dont speak english. Y me gusta como abordas las reparaciones,con tu carisma y toda la instrumentación profesional. Dios te bendiga. God blessyou.
Best electronics repair channel on yt by far. All the best Mark.
Excelente video, saludos desde Tegucigalpa ,Honduras
I don't think I have ever witnessed a better electronics repair job ... Outstanding , Mark Cheers
My Mrs recognises the opening music when I start a video she always makes me go back to the start so she can see you get a shock 🤣
great work as always Mark, keep it up 👌🏻
"Thanks(for)giving" us another stellar peak into your brilliance in the workshop.
Gotta love the rapid-fire brushing at 15:50
Amazing radio. I have the 1956 American version, different colors and the 4 smaller speakers are mounted on the side. Still all original, still gets played a few hours a week. 😊
Great video! Those old radios sound wonderful!
I have a Philco Transglobe that I enjoy listening while having my 5 o' clock tea!
Wow! What a stress buster to watch Mark fix things up. Highly optimistic. Thank you so much. 🎉😊 Good luck and best wishes to you and yours.
This was a great video. I love how you got this old beast to play smooth music.
Марк, вы великолепный мастер своего дела. Всегда улыбка, несмотря на некоторые вещи что идут не так. Спасибо вам. Всего доброго семье. Привет из России 🇷🇸
You really are an amazing technician. Love watching your videos.
When I grew up my grandfather had one of those in his living room and it was always running. I even remember the sound of it.
Throughly enjoyed that, so have now subscribed, thank you, takes me back it!
I'm surprised you haven't had a lot of valve radio restorers on here telling you to change all the wax capacitors as they go leaky. But to be fair I think you have changed all the high voltage wax caps i.e. plate to grid couplers - you just didn't make a big point about doing it. There's plenty of videos out there doing that anyway. If other wax caps fail it probably will still work. It all depends on if you're doing a deep restore or just trying to get it to work reliably at a reasonable cost. Great video again, always enjoy watching your work.
As always attention to detail and their is one thing I do like very much is just the humming of your workshop with just your voice and the sound of your tools 😊
Amazing!!!! You almost did that radio again to bring it back to life!!! Now it is a Markefunken!!!
Гарна робота, як завжди.
Сподіваюся, цей апарат прослужить ще довгі роки своєму власнику.
Thanks for sharing your know how, and taking a 60+years radio and give it one more life of making music.. and demonstrating at the same time how precious thes old technologies were.. and they were within reach of the people who wanted to learn about them and repair them, right at the corner of the street, nearby.
Now, try to open any recent Dac or Streamer and see if you can get it to work again.. my EAD Dac just died, and no one can repair it.. sigh. Thanks Mark! 👍
What a clever chap you are Mark. Even thought I don't understand electronics I still really enjoy your content. Brilliant!!!!!
And me. 99% of the time I have no idea what's going on, but that doesn't mean I don't find his repairs/restorations fascinating! Mark certainly knows his stuff.
You are so cheerful even when faced with a mess of failing capacitors.
That's what I like about old radios, you look inside at a wonderland - unlike the single chip and one or two surface mount components I have seen on modern things, they have no soul. Most enjoyable, thanks for sharing.
I could go into deep sleep... every time i listen to Mark ... the broken electronics whisperer.
Watched this with fascination, because although I'm not technically minded, the assurance displayed here made compulsive viewing. I do like restorations, and this one fitted the bill perfectly. Thank you Mark.
Great Mark, i follow many restorer but you're my favourite. Thumbs up
Most satisfying. I love those sound from those old radios.
Nicely done with the radio.
That was a great video.. Tq. 🎉
Fantastic Mark one of the more challenging projects you have done and certainly one of the more interesting ones too. It amazes me just how knowledgeable you are nothing seems to upset you and you keep coming through with results. keep the jobs coming Mark you have a very loyal following we continue to need a "fix" from yourself. Take care.
oh yes, it was made in Hannover, German (I'm quite close to the old Factory)Telefunken is just around here and they made fantastic Radios and Tape Players. The Tubes make a thick, loud sound. I really love them. Cheers, very nice Channel and top notch cotent.
That's my Friday night viewing all taken care of. This is a nice long one, roll on Friday.
Well done Mark saving something ending up on scrap heap I am a bit like you I try to repair them if can to much ending up on the dump good video great repair
Greetings from Wombourne, I enjoy your work and have watched many of your videos, always a pleasure. I,m glad none of the caps exploded when you juiced it up.
28:42 I was surprised the coupling capacitor for the bass speakers wasn't a non-polarized type.
All-in-all a fantastic rebuild. It seems when you fix something, *it's fixed!*
You can use non polar caps for small and large signal coupling with no issues, as long as the offset voltage across it is a good bit lower than the cap's voltage rating. Polar coupling caps will introduce a tiny amount of distortion... In this old radio it wouldn't be measurable compared the amp and speaker distortions.
Wish I had the electrical skills of this guy very few people any where have this talent.
Amazing to watch you repair these old radios, it looks like first port of call, replace every capacitor before you start fault finding as you will probably fix 90% of the problems instantly 😂
Mend it Mark, you should meet my mate 'break it Brendan'
Thanks for taking the time to make these wonderful videos
I see you are using some of my capacitors. I am the only one that sold those yellow and black ones. What a pleasant surprise!
I remember as a teenager in the 1970s being given a Grundig reel to reel tape recorder . It was enormous and the most complex mechanical and electrical monster I'd ever seen ! It was built on a cast iron chassis , and all the piano key controls operated solenoids that in turn pushed and pulled all the various pinch wheels etc on the deck . It had a total of 8 valves ( tubes), and a huge finned selenium rectifier on the power supply unit.
It was only mono , but the built in speaker was huge, and the microphone was a very heavy ribbon type. All it required was the heads and pinch wheel cleaning and it worked perfectly.
The neighbour who gave it to me said it was from the very early 60s ,and cost the equivalent of around £ 200 when new ( bearing in mind this was 1971 and a new Ford Escort was about ? £750 at the time!
Absolutely wonderful and the icing on the cake was listening to Andrea at the end of the video.
Man, they don't make 'em like they used to... and good thing too. The transistor completely transformed electronic gadgets and made today's computers, internet etc, possible. Another great video. Excellent presentation and technical knowledge as usual. :)
If I had that radio, I'd just have to try those speakers with a stereo amp and hear what they sounded like. Imagine stereo sound from that classic radio!
your knowledge and skill of electronics is amazing, i don't have a clue what your doing but it just amazing to watch
Wonderful upload, thanks Mark. I really enjoy wizards like you bringing these old gems back to life.
The soldering iron is too close to the dial cord, give me chills! I love your videos and your laught.
its all well over my head but I can see just how smart and talented Mark is at his trade, well done Sir and cheers from NZ
Different class of workmanship. Well done. I am loving your videos and you are a lovely chap who is so passionate about what you do. Brilliant mate 👏
I’m learning more with your experienced videos than in 3 years of specialized school of electronics (although it was only on Digital Electronics).
Omg I just found your videos , my late father use to repair TVs radios ,all those names and the components you mention brought back so many memories of when I use to watch him as a child ,im now 59, btw your knowledge is amazing how did such a young guy learn all about these old period sets , thanks great watching on a Sunday afternoon
Flipping awesome! Thank you! A lot of fun watching.
Glad to see that you’re doing another video Marc this device looks like my father‘s Grundig blue spot radio that I still have too this day
Nearly choked when you put the neutral on the fuse until I remembered our British plugs are fused. Very nice work.
Mark, what can I say? What a fantastic vlog, full of so much content and skill. We'll done, I always look forward to seeing your work. Wish you could be more frequent with more posts 👍👏👏👏👏
That took me back a few years. I used to sit with my Grandad in the early 70's and watch him "repair" old broken radios and anything else he could get his hands on, he never had the electronics you have, just screwdrivers, soldering iron and a hammer 😀.
Brilliant stuff, liked and subscribed.
An amazing repair ...Total respect Sir
Beautiful Art-deco front panel design!
Watching this makes me so thankful for the invention of the printed circuit board!!! 😅
Thanks. Keep ‘m coming!
Always find these videos soothing.. a professional doing a professional job with utmost pride in his work, and some bonus ASMR from the various screws and stuff being removed 🙃 Really high quality content.
Mark you make it all look so easy. Great work once again.
Hello there! I love the way you troubleshoot. I enjoy and learned steps by step how to attact the trouble. Keep it up. 😊
Mark,you are simply the best.pleasure to observe
@ 51:56 those grid coupling caps have different voltage ratings because the 500v rated cap blocks off the anode voltage of the phase inverter triode to the top output valve grid whereas the
250v rated cap to the grid of the bottom output valve grid is connected to cathode of the phase inverter, thus much closer to ground potential.
I have fixed countless of these radios and have experienced most of these ERO and Wima paper- foil caps failing within hours of them testing ok, problem being that they attract moisture and the paper goes acidic, so I save myself the grief of having to (almost inevitably) repair a second time by binning all of these caps at least in the audio section.
Excellent video and Bluetooth tutorial!
What a cracking piece of audio furniture! Nice video, Mark. 👏👏👏