1942 Ducati Radiogram - Part 2 - Speaker Repair & Bluetooth Installation
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- Опубликовано: 13 сен 2024
- After tidying up the radio chassis, Mark has to repair the very fragile 80 year old loud speaker cone. A litle bit of fettling vintage valve bases, and the discrete implementation of Bluetooth finish off this WW2 vintage Itallian beauty.
My Dad was a WWII US Army Veteran... I am only 62 it's just hard for me to imagine that my parents danced to music like this even though I knew they would have with my Dad in a fedora and a suit, tie, cufflinks, Florscheim shoes and Mom in a nice dress , high heels with that 40's hairdo, a string of pearls necklace celebrating the end of the war. Thanks dear Mark as I miss them and you brought back fond memories.
My favorite channel, the best discovery in 2022. I'm just recording a video to share my favorites subscriptions.... this one make the difference. Thanks from Seoul, Tito
Just Discovered this in 2023. I'm hooked. 🤩 Love from Melbourne, AU.
🙏halo omm betulin tif Soni yg kaset 2 dan firingan tiga , Omm 👍👍👍🙏🙏🙏
Speaker should have a gauze dome covering the centre to stop dire/grit getting into the magnet centre pole and voice coil ! Fraser!
Beautiful workmanship Mark, especially the bluetooth board. Such attention to detail and neatness. You certainly know your stuff.
This is a good record player
I’m sitting watching this video and I can’t help think of the people at that time during the war. Probably all passed away now
This video is so far out of this world. As a vintage valve tech, it’s one of the best I’ve ever seen. Great job, Mark……👍
That look in the intro after he gets a shock...PRICELESS !!
Mark Maher...you are the sweetest person, with the warmest smile and personality, i've ever seen !!
A true Labour of Love...this restoration...truly immaculate !!
A little tip, the brushes for interdental spaces are well suited for cleaning the plug contacts of the tubes.
Thanks for the tip.
Another tip: thinned (with MEK) Ados F2 with black tempera and delaminated toilet paper for a very strong and almost invisible repair of speaker cones.
@@markstuckey6225 I've used newspaper and 3M general trim adhesive to good results as well. messy/sticky going on, though.
Great tip!
The whole deal from pt 1 through pt 2 was so excellent to watch - - I especially like the 78 record player - - they sure knew how to build great stuff back then.
Awesome work, and thank you for letting the song play out at the end. What a treat. Cheers
Khruangbin on Austin City Limits "White Gloves"
So awesome to see these old radios come to life.
Nice job on that speaker reconditioning and bluetooth integration!
I notice that - sin of sins - you didn't ground the plywood base of your Bluetooth module. 😀 Excellent work and a very interesting project.
What a remarkable intellect, personality, and craftsman. Most of the stuff Mark does is above my paygrade but I've actually learned a fair bit from watching his channel.
He could have simply replaced that speaker with something modern but it's so much cooler that he lovingly repaired the vintage driver and kept things as original as possible (with the exception of the Bluetooth module but that ensures this old radio will continue to be used for many more years). Wonderful stuff!
I had a Yamaha DXR10 powered speaker that I was using for bass augmentation with my Leslie for live gigs. The cone ripped from the edge almost to the center. I had another gig and didn’t have time to order a new speaker so I used some standard lined notebook paper and PVC glue (the white glue that Mark is using in this video) and repaired the tear. It was meant to be a temporary fix until I ordered a new driver but it lasted for five years! Eventually another tear opened up but my original fix was still fine. I did finally order a new woofer for it.
Sorry to be pedantic, but was that PVA glue?
@@billdoodson4232 no, it's PVC-E glue. I bought a big jar of it to do glue new keytops on piano keys.
@JimAlfredson Ohhh, never come across that one before. I will investigate further. Cheers.
Mark you're definitely a solder soldier. Amazing work keep it up!
I'm glad that worked for you. I usually center speaker voice coils by putting something in the gap to shim it all the way around; an old plastic soda bottle usually works pretty good and is about the right thickness.
Great to see some one that does not do a bad job but takes a pride in repairing and building a great old radio gram, I own a lot of thanks to a radio/television engineer that show me back in the 60s not to just throw radios away just because the parts was not available any more, this for a young boy just left school at 15years old, and start to work in a shop that repaired radio/television/ electric irons/hair dryers/etc, we all so sold the full range of resistors / capacitors/valves in stock for the public to cum in to buy. happy days, thanks for showing you great skills.
Hello from Romania! Nice to see good quality repairs made by a very skilled and good person. Thank you for your videos, Mark!
awesome :)
I have used the spray Plasti-dip, with good success, to repair splits in speaker cones...
It fills in the splits, and dries rubbery, but still flexible, and found that it really "bites" into the cone paper, so the repair is very strong and withstands the movement of the cone when the speaker is in use :)
The fact that it dries black too, is a big bonus :)
I use Evostik impact adhesive for the same reason. When dry it remains flexible.Saves having to stick patches over cracks. If the cone has become deformed by damp spray it with isopropyl alcohol (surgical spirit from the chemist) and as it dries it magically pulls the cone back to its' original shape. Been using both methods for 50 years and never fail!
This guy is a electronics genius
Dunno how I stumbled across this channel, but i'm glad I did... your knowledge & workmanship are way over my head..but I find the videos fascinating.. I have a very basic knowledge of audio electronics..i'm a bass player & hi-fi enthusiast... Keep these videos coming... Oh.. by the way.. my Ducati is definitely louder than your Ducati !!
Are you selling your audio interface board anywhere? I’d buy a couple! Even better if it came as a kit 😁 Love your work, keep it up.
Not only a skilled tech and thoughtful restorer, but a fan of Khruangbin!! Pure class.
A fan of what?
I just can't miss any piece of Marks Videos! So inspiring ❤
Love your channel, brings back memories for me, from the 70's and 80's when I was bench engineer for Philips, working on all of their varied audio products, after 1982 mainly CD players, the faults were of great interest to the design departments, and new faults were always a great source of excitement to me, especially on the Philips CD104, which were made in their thousands, also Maranz products were mainly Philips technology at that time, happy days, before products became less serviceable, and we were all dispensed with....hey ho
Cigarette paper and wood glue are very suitable for loudspeakers.Watercolor is good for refreshing cardboard membranes.
Nice work as always Sir!
Perfect for those 78s. Stellar job as always!
you have done an amazing work of soldering all SMD components with hands and a microscope like a robotic arm will do in a factory. immense respect love from India.
That speaker looked a bit scary to take apart. Great job and a very nice Bluetooth modification. Cheers Graham
Hello from Italy. Professional job!
I enjoyed watching this craftsman at work. Expert, unhurried and modest. The video production is also a model for others to follow.
Didn't realize that Ducati made radios, besides motorcycles. Beautiful work! John in Texas
Amo questo tipo di riparazioni, spettacolari e il Ducati meraviglia 💪🏻💯👍🏻
Great work as usual. My only add would be to include some sort of mixer on the stereo output of the Bluetooth module. There might be sounds in the source that are only in one channel that would be missing in the final output if only one channel is routed to the output.
I,m addicted to your repair videos...
I discovered your channel recently and am baffled by your knowledge and skills. I really enjoy watching this 🙂
Like your video’s , though I must admit 9 out of 10 is beyond me due to my lack of technical education.
Radio’s have always fascinated me, wish I knew more. Keep up the good good work.
Great mech eng skills - restoration of an 80 yr old speaker is not for the faint hearted! Thought it would be more bassy given its size, but sounded great.
New to me, but a great channel to have found 👍
Love your work Mark
Mark iam getting adicted to your great videos ♥
Very nice work on the restoration and I would have put some material over the speaker coil to protect it from debris!
Amazing work...had to smile at the end. Decca, the label that turned down the Beatles.
Have to watch Mr Electric work on speakers with certain glue dissolvers and the paper cone comes out easily. They make it look so easy.
Thanks, Mark. Always a pleasure to watch your content. Keep up the great work!
Amazing radio. I've never heard of it before.
We learned to use rizzla sigarett paper for fixing membranes. Love your vids
Mark, great video. For repairing te speakercone cracks, I always use some nailpolish. Works every time😂
And I got a great new music tip from you on the Bluetooth demo - Khruangbin on Austin City Limits "White Gloves"
Niiiice
There should be a dome over the centre to prevent dirt getting into the magnetic gap and causing scratching noise!
For future reference, you should use a shim to centre the magnet assembly as well as the coil into the gap. 7 thou plastic film is the norm. Remove after you've tightened the screws and/or the adhesive has cured.
Danke für die Schönen Videos, sind alle super Toll 👌👌👌👍👍👍
Hello from Tunisia. You are a real Gentleman.
Awesome job Mark watched the first part and what a great Job you've done, nice touch with the Bluetooth add on ❤👍🏻
I was a little surprised to see that Mark hadn’t noticed that he soldered the live on to the 0V and the neutral to the 240V on the Bluetooth mains transformer (32:30). It makes no difference functionally of course, and it is still a great video.
brilliant work
this was someone's pride and joy, back in the day, very expensive,relative to typical earnings back then.high-tech,think top-flight streamer in oday's terms. liked the video,superbly done. nice you preserved it, for future generstions. there can't be many still around.adding 21at century microelectronics great fun. can't help but thnk that in 80 years from now, that part won't be so serviceable/saveable, if it fails, like this unit was.overall. finally, think, that if you want, you should consider Patreon, to reward you further for your efforts.
You are very talent man congratulations sir.
Great work Mark, the interface module is well designed to get around those annoyances with BT modules. All the best for the new year.
Jste velice šikovný a stále veselý je radost Vás sledovat
What a classic design!
That's a lovely restomod, but I sometimes wonder how well old amps and speakers handle present-day pop and dance music with their greatly enhanced bass.
Nice speaker restore Mark !!
i found your channel last week and I cant stop watching your videos. great work and attention to detail. Keep them coming
Mark has found corners on a circle! Sorcery!
Rio de Janeiro -Brasil. Parabéns, você é um gênio.🤩🤩
Mark you are amazing mate! I've worked on a 1958 Sharnsberg Strauss Radiogram. I updated the Record Player from a Monarch D3 (I think that was the model number)? And fitted a BSR semi auto record player using a crystal cartridge or maybe I used the other type to run with the vintage receiver. It worked like a charm. More videos of your amazing work please.
GR8T JOB. My graduating class wants you as their main SPEAKER 🔊 p.s. Classy end to the video - I'm loving it. Cheers
what a fine piece of work Mark...excellent.
Wonderful repair Mark... really happy I have found your channel... with DaveTiptons my 2 favourites... btw some pledge furniture wax makes the cone pliant again....the pva also does a great job
when lining up voice coils, gaps and spiders its a lot easier to use plastic shims in the gaps.. For paper cone repairs PVA is mighty, although I prefer tissue paper to filter paper - applied in layers as papier mache..cigarette papers work well.
Absolutely brilliant 👍👍
The splits in the cone would have developed because of the cork strips detaching, allowing those edges to lift and thereby flexing the cone at the mounting points where the screws are.
Just brilliant...so impressed with that speaker repair, but all of it was very engrossing!
Thank you for posting 👍👍
the best sound vintage
Job well done! Nice to see the old stuff working again.... with a little touch of modern technology. Keep up the good work!
I have just found your channel a couple of days ago and I think I have watched most of your videos,excellent and very informative done with a smile. Keep em coming. Thanks.
Excellent Video
Should have used Varnish on the cone, Mark. The only thing you will tune into with that Is probably Mars. I have the same with the decks lights on my Citronic Thames 2 mk2, looks like the same bulbs as well. Have You ever worked on one these?. I have a Hum under the left turntable, doesn't effect play though. But I was always told that a Hum Is still a Fault. Beautiful Piece of kit there, and worth Restoring. I thought the Record was going to be "Chanson De Amor" for a second. Thanks for the upload, and Keep 'Em Coming.
Good job. To clean the sockets you can use interdental mini brushes
Always wondered where the corners of a circle were --- many thanks for clearing that up
Excellent work. I like the record that is playing, and excellent fidelity too.
Wonderful vid! Would love you make one a week! See that this was done one year ago so perhaps a tad late to comment. I watched as you used coffee filter paper to repair the speaker cone - thought that if the necessity ever arose again maybe a better choice might be washi Kozo paper (Japanese mulberry paper) which (among other things) in used in repairing damaged art works. It’s available from any decent art supplier.
what you do always surprise me! a real master! thanks Mark!
What a lovely old thing it is!
few years back I bought a couple sheets of chinese paper, with a long strings of... whatever the paper is made of. Whenever I have a cone to repair, I just tear some and glue it from the back, it goes into every little hole without any effort
I think they call it washi koso paper...seriously fine paper but very strong.
Wonderful eqipment, wonderful serviceman😊
Excellent work Mark. 11:06 - TIP: I see they usually put some paper strips between the coil and the magnet, to space them equally when assembling the membrane. The strips are removed once the cone is assembled.
Einfach super gemacht. Toll!!!!
SUPER. Thank you for this video
10:24 Those 4 screws are tightened down last (leave them a bit loose). First, set the mag/motor assembly in place, and tighten. Then flip over the speaker and use some thin paper strips (from a cut up business card), and slide them into the coil's air gap (alternating sides to make sure it stays centered in the gap). Once it's centered, turn the speaker over again and now tighten down those 4 screws. You now have a perfectly centered voicemail, but leave the strips of paper in place (for now). Now glue down the rim of the cone and use a whole bunch of clothes line clips to clamp it down until it dries. Once it does, slowly pull out the thin paper strips from the coil's gap. You can help keep any dust and dirt from entering the coil gap in the future by gluing on a small round dust cap. Btw, you could have used the same paper strip centering method when you were trying to center the motor assembly (at 9:29).
Indeed, that’s a good way to do it, had some great results myself with that..
You should of played your opening tune on it mark... 👌 It's a banger!!!
Uncanny he chose the No1 most played on pub jukebox, i know why.
Thank you so much for all your detailed content.
well done end explained. Inspiring for other repair men. Bravo !
Awesome, and also awesome you’re a Kruangbin fan !
Happy new year to you
Amazing ! bluetooth on a contraption from 1942... wowie!
Excellent job, sir. Just found your channel, really enjoying it. Keep up the good stuff.
A beautiful machine very lovingly restored. Congratulations