I had old radios as a kid, but nothing as high end as this Grundig, so it was quite exciting to get this one up and running. I know what you mean about stuff we had as kids now being vintage and collectable - I never had a Raleigh Chopper but always thought they were cool and wanted one - now they fetch mega bucks.....
@@GrumpyTim I had a chopper in the 70's and when I upgraded to a racer bike in the early 80's I tried selling it. No takers and it stayed in my parents garage for years before finally going to the dump. The racer bike is still in my parents garage to this day 40 years later. Just wish the chopper was......
I think a lot of choppers went that way - when racers became the thing, no one wanted stuff like choppers. Mind you, the old racers have quite a following these days (not with the value of the chopper unless they're something exotic) - I regularly see old racers out on the roads, with their downtube shifters etc - I have two 80s racers myself and still enjoy riding them, it's quite a giggle.
I have a radio like yours, and mine was made in Portugal. My wave selector was also stuck in FM, and I think that the reason is in 1973, the year of manufacturing of this radio, Portugal lives a dictatorship, and the company's locked the radio to the person don't listen foreign radios. If you look well, the FM selector is different than others. Thank for your video. Regards.
Cheers Ivan, I find older stuff like this much nicer to work on rather than battling endless plastic clips just to open the case on modern items. Cheers for watching
Recently, at a local flea market, I bought a non-working Grundig C4500 for 10 bucks. Blown fuse due to shorted electrolytic capacitor. Changed all of them but while fiddling - burned the output transistors. I changed them to Soviet analogs, adjusted the coils and got excellent receive on SW and FM. MW and LW due to local noise cannot yet be estimated. It has a similar design and I am very surprised how such a simple design can work so well.
Hi Vlad, simple designs suit me perfectly - I guess that's why I mostly enjoy fiddling with old equipment. Modern stuff annoys me - just getting inside can be a task in itself - endless plastic clips and stupid security screws drive me mad!!! Ever taken an Epson printer apart - so many fiddly little clips - easy and quick for them to assemble in the factory but you're never intended to get it there and fix them (but I still manage!!!!).
This radio looks like it should be 5" x 10" but it's really like 10" x 20"! Its like many of the ones I used to see in catalogs. You look at the radio in the catalog and think, "Oh that looks like a nice small portable radio!" but in real life its GINORMOUS like it dwarfs a spray can of switch cleaner, it's actually about 2x larger than the photos make you think - they photograph it next to huge stuff to make it look small !! Lots of products did things like that to make them look either bigger or smaller depending upon the goal of the manufacturer!
Hi D Gillies, you're absolutely right - I've had radios in the past that look more or less like this one, but they were half the size, if not smaller. This one is really quite a beast - I was tempted into getting this radio after seeing Techmoan's video showing a Grundig Ocean Boy 210, which is positively massive - th-cam.com/video/3CARjPj6lFE/w-d-xo.html - I couldn't afford one of those so I opted for something a little simpler but still having a bit of presence when you see it in the flesh.
My solution for stuck rotary (variable) capacitors: If the axis + housing is made of metal, heat it up a little with the tip of the soldering iron at the socket. Of course not so much that the plastic pulley melts :-) If well warm some WD5 on the front/back. Usually it starts to rotate again quickly after heating up. If it cools down and becomes stiff again, just repeat 2,3 times. Even very stubbornly stuck (very resinous grease) will be released again. Because solvents (isopropanol, acetone etc.) alone usually only help for a short time. Often it is not enough to make the axle turn again by the capillary effect alone. With the key sets (wave/band range switches) I drill them carefully in the middle with a 1mm drill, depending on the length 1-2 times (only drill through the cover plate). Afterwards flood them well with contact cleaner using the spray tube. Now it is important to switch each key 30-50 times. I have done this 100 times with the drilling, nothing ever happened at a switch because of this. It has always worked, even in very stubborn cases.
I use the heat technique to free up sticky old oil on other mechanical stuff but it didn't occur to me when faced with a sticking tuner, so I did it the hard way - it worked ok on that occasion and the tuner is still working perfectly. Great idea for the selector switches, I've got some other radios in the "waiting to be fixed" pile so I'll adopt your method if any of them have crackly old switches. Cheers for the suggestions.
I'm glad I managed - I just fancied a nice retro radio to listen to - I've spent the last however many years listening to CDs, MP3s and DAB radio - it's fun to be reunited with a real tuning dial!!!
@@BensWorkshop You're absolutely right about digital radios being power hungry - most DAB radios I've had anything to do with will run for about a day on batteries, whereas an analogue one will last weeks. I haven't played with valve equipment for years but valves are rather fun.
Cheers D Ilic, I was hooked on the idea of getting one after I saw Techmoan's Ocean Boy - I couldn't really afford one of those but after a bit of searching I loved the look of the Concert Boy, and it's still in regular use now.
@@GrumpyTim _These radio receivers are dry gold. I had it and thieves stole it from me. I've been remembering it for 40 years and I still haven't regretted it. Big greetings from Sibenik-Croatia._
Thanks hadi reg, glad you liked it. I'm really pleased with the radio now I've got it working - I might do a bit more tidying on the case sometime, try to make it look even better but it works and that's the main thing.
Absolutely right Lamborghini, it's not so bad if you're just leaving it on a table like I do, but if you're intending to use it as a portable, you're constantly lowering the antenna so you can use the handle. Lovely radio all the same - I'd had old radios when I was a kid, but nothing as good as this one.
@@GrumpyTim it must be this very model ..no other model has this silver shiny design and the long handle interfering with the antenna. had one in the mid 80s. I did not know the model or manufacturers name. makes me wonder if the song "cube - concert boy" is based on this radio
Ooh, I don't know that track, I'll check it out. There's also another version of this radio, I think it was a slightly later version, which has a wood effect grille rather than the black plastic version with round grille holes as on my radio - I preferred the looks of this one, so that's the one I got.
@@GrumpyTim yes I like this one as well, probably because this was likely the one I had.will probably pick one up if I see it on any auction site. the track is great , one of those long forgotten songs that sounds familiar, with the late Paul Griffiths on singing.
The Short wave is allways on old radio not like today , you're right i prefer also listening "real" radio , that's good to know for exemple listening moskow and you're in australia ^^ Easly fixable and durable ^^ I have a good 1985 philips receiver with 10X short wave scale and usb , ssb , capable to listen CB etc .
Yeah, it's easy to forget how good old radios were - these days we're encouraged to listen to digital radios with a very limited amount of channels, they're incredibly hungry for power because they are actually running a computer to decode the digital signal rather than a simple receiver on the old radios. It's good that there are still a few people listening to the old radios - it's a much more engaging experience.
Cheers Ganesh, I'm particularly fond of old technology like this, it's usually much easier than modern stuff to fault find and repair, plus it's just cool too. Cheers for watching.
Hi mirbasharkhan - depending on where you're located, old radios like this often turn up in junk shops, flea markets, boot sales and so on. They can also be found on auction sites like ebay, but often the sellers tend to expect a bit too much money for them on those sites. The bigger difficulty is that more often than not these old radios need to be repaired before they will work again - you're unlikely to find anyone who can do this for you unless you're good at fixing stuff yourself - or at least that's the case in the UK.
Hello GrumpyTim! Seen from the point of the yellow radio scale this should be a 2nd generation Concert-Boy 1100 (?) The one with the "facelift", because the device was built over more than 5 years. But normally the CB 1100 with yellow scale also has the (pseudo) "perforated" [so called] Grundig "Rally" carrying handle. At least that's what I have heard. Mine has also just been finished. It is the Verson with white scale here: th-cam.com/video/XFh3aIb408E/w-d-xo.html I had to adjust the AM-range a little bit because the reception at AM was weak. The remaining bands are all very good, especially the FM reception is really excellent. A nice portable unit from the 1970s radio era.
Hi HiFi Boy - I saw some of the ones with the perforated handle when I was looking for one I quite liked the look but the one I thought about buying had a damaged plastic window over the tuning scale so I bought this one instead. It's always possible that someone has replaced my handle sometime in the past. Just watching your video - wow, yours is in great condition. I'd spent many years just listening to DAB radios and I'd forgotten how much fun it is to manually search for a random channel. I like listening to strange stations on short wave at night. The FM reception on mine is fantastic too - shame they keep threatening to turn off all the FM transmitters in the UK because "everyone uses digital radios these days"!!!
Thank you for this valuable debug repair video. My dad bought one GRUNDIG Concert Boy 1100 in 1970s (cost was his entire one month of salary (2000NT or 50Dollars) working as a government employee) and it has been in Taiwan's high moisture environment. It has travelled from Taiwan to Jordan to Argentina and now back to TAiwan. I tried to turn it on and can hear the humming of the 4.5Ohm 3W speaker but none of the band worked. Opened it up and there are observable rusts on all the metal part especially the canister enclosing some electronics with a part label of 19427-002 (the rectangular canister tuner like part to the upper left of the speaker in your video right below the carbon rod thing for antenna pickup. Is there any chance to repair this even if I have to send it over to somewhere?
Hi twp tipoc, my general feeling would be, that your Dad's radio should be repairable, the tricky part might be finding the right person to repair it - an enthusiastic person who repairs old radios for a hobby is what you're looking for. You could try searching TH-cam for people who repair vintage radios in Taiwan (it doesn't need to be your specific model of radio because radios from different manufacturers tend to use more or less the same technology for a given period of manufacture). You might get lucky and find someone who'd be willing to take a look without having to export the radio to another country. That's my initial thoughts anyway, let me know how you get on, it would be great if you could hear the radio working again.
Hi Mervyn, I haven't got the radio with me this weekend, but from memory there are two screws somewhere towards the bottom of the case - I can't remember if they're inside the battery hatch or if they're just in recesses accessible from the outside. The top edge is a bit more fiddly, I seem to recall that there are pegs that latch into the top of the case and the pegs just release as you hinge the bottom edge away - this also releases the friction contact for the ariel which can be a bit tight and maybe even rusted. That friction contact also tends to make a poor contact once it's been taken apart so you might need to clean it up. It's been a while since I've looked inside the radio, I can always take a look after the weekend if needed.
Mine has a Bass level problem. When upping the Bass it distorts the bass. Sounds like a cone that is ripped or the coil in the speaker. Do you know where I may be able to get a speaker from? Apparently I read somewhere that the speaker was designed for that model radio. I have not taken it apart to check the speaker. The radio, otherwise, is all working perfectly. I never switch it off! I live in New Zealand. Thanks.
Hi Wilbert, I haven't found a good resource for vintage spares apart from the usual ebay - sometimes I end up getting another of the same item (usually a bit more battered) and using that one for spares. It would be worth taking the speaker out and examining it, because it might be as simple as the flexible edge of the speaker coming detached from the metal surround, and that can easily be glued back into position. I've also successfully re glued a loose centre dome that was rattling in a speaker. If the problem is deep down in the coil area, it might be a bit more tricky to do anything about. I have repaired a broken coil in one speaker in the past, it worked ok but not perfectly.
@@GrumpyTim Tried a similar type of blaupunkt speaker as well as removing and checking the Grundig speaker but still is the same. No rips in the cone or rubbing on the coil. It must be in the electronics. The radio has lost no volume otherwise and works perfectly otherwise! Is there some sort of electronic component hat has failed in the bass level department?
Hi Nadir, as far as I'm aware the shielded metal section contains the FM (VHF) circuitry (or the FM module as some people refer to it). The FM section had previously been fixed on my radio so I didn't have to touch it. If I'm correct about it being the FM circuit, then the other channels should work ok. Hope this helps a tiny bit.
@@heleniumsun Hi Nadir, does your radio work at all now? If there was a capacitor pop sound and the radio went completely dead, you might want to look at the power section or the amplification section. If the radio makes some noise, even if it's just crackling, you could potentially start checking individual components (assuming you're ok at soldering) - it's not the most scientific approach but replacing one component at a time can sometimes work, maybe starting with the electrolytic capacitors and then maybe the transistors. If you have ebay or similar, search for something like "LCR-T4 Transistor Diode Tester" - these things are cheap and really good for testing individual components once you've carefully unsoldered them from the board.
sir, I have a radio "" grundig concert boy 1100 "" for a few days the song becomes interrompus for a few seconds then it returns to normal and now it only works for a few seconds and stops and remains only a small noise .. I don't know please help me. what is the source of the problem ??? I love this radio
Hi Karim, it's kind of difficult to diagnose problems with a radio when it's not sitting in front of me but I can at least make a few suggestions. I don't know how much knowledge you have so I might just be telling you stuff that you already know. Does the fault happen if you change to another band with the selector switches - a dirty band selector switch could cause the radio to play up like that. If you have dirty band selector switches, a lot of people use DeoxIT or a similar switch cleaner. Assuming the fault happens on all bands, the same fault could happen if the volume slider is dirty, but I would expect it to make at least some difference if you moved the volume slider. Are you running on battery power or mains? You could try swapping to batteries if you're using the radio on mains power in case there is an issue with the mains transformer / rectifier or anything else in that area. Likewise, if you're running on batteries, have you checked that they're not flat? After that, and assuming none of the bands are working, you might need to look at the amplification circuit - a failing transistor, capacitor or resistor could well be your problem - it depends on how used to working on electronics you are - I don't use the most scientific methods for tracking down faults like this - if I can roughly work out what area the fault is in, I'll usually unsolder components (one at a time) that I suspect might be the problem, then test them on a component tester and refit them if they test ok or replace them if they are faulty. Obviously, before you open the radio, UNPLUG it from the mains power. If you're not confident on working on electronics, then maybe don't start taking things apart because you might make the radio worse. Sorry I couldn't be much more specific.
Excellent, hope you make some progress - if nothing else, you might be able to determine what isn't wrong, and from that, get closer to finding out where the problem is.
Hallo Harry, bedankt voor het bericht. Als Google Translate correct werkt, heb je een mooie Grundig Satellit 2000 die gerepareerd moet worden. Vroegen jullie wat tips die je kunnen helpen om zelf de radio te repareren of vroeg je of ik radio reparateurs ken in / of nabij Groningen? Ik ben gevestigd in het VK en ken geen enkele andere radiohersteller dan degene die ik op TH-cam heb gezien. Afhankelijk van wat er mis is, kan ik u misschien adviseren of op zijn minst enkele suggesties doen over uw radio. Ik hoop dat dit een beetje helpt. Proost Tim
Hi Andrew, just had a quick look at my radio - I appear to have a steel gear driving a larger brass gear. From the look of it, the steel gear is machined as part of the drive shaft. On the other end of the drive shaft is the plastic pully with the tuner cord wrapped round it - that pully has a split collar on the outer side which has a chamfer on the end - the chamfer is used to slide a circular spring clip up and onto the flat surface of the collar, which in turn makes it grip the steel drive shaft. Of course, they could have modified the design over the years, and yours could be different. Don't know if that helps at all.
Hi Maurits, there are just a couple of screws on the bottom of the case - with the machine sitting face downwards, once these two screws are out, the rear panel lifts up from the bottom, and once you've got a little bit of an opening, the clips at the top should disengage along with the rather dodgy aerial connection, which is just a friction fit onto the circuit board.
@@GrumpyTim Ok i open it yesterday not any problem ,and cleaning it a littel .Itt sound like a great Concert on FM clear audio .But but when i go to MW ,or KW1 or KW2 i can hear some FM splatter from a local station 1 km away .Maybe you now the problem iam not an engineer thx for post the video and comments CU 73, de ON3MK Maurits
Hi Maurits, my radio repair skills are relatively limited and I use a fairly dumb method of fault finding, but strangely enough, that usually gets me to a successful outcome pretty quickly. I'll usually open the radio (or any other piece of similar equipment) and look for the blooming obvious (like the broken tracks and solder joints on my radio in the video), and often, that can sort the issue. After that I'll work through the section where I suspect the problem is, and often I'll remove and test components like capacitors or transistors, replacing any that are faulty with a compatible part. In some cases, the project will be on the workbench for a long period of time and I'll just put it to one side until I have another bright idea. It's likely that the FM side of your radio is fine and there's an issue with the AM section - it could be a faulty part, or simply that the radio needs to be realigned - I say simply, but I've never had to realign a radio, I guess that's something I'll find out how to do when I need to do it, but here's a video from Mr Carlson's Lab about radio alignment which might at least give you an understanding of the basic concept. th-cam.com/video/WvkAznAG-7k/w-d-xo.html
@@GrumpyTim When I slide in the rod antenna it's gone and the radio is very fragill inside I'll leave it as it is the FM sounds great that's the most important thing to me too .Anyway many thanks for your reply and posting your videos .Looking forward to further, take care and keep the radios alive 73, Maurits
![CAMPปลิ้น | EP.82[2/2] เมาท์มอยกับ 3 สาวเพื่อนซี้ ที่พร้อมขยี้พ่อหมีได้ทุกเมื่อ](http://i.ytimg.com/vi/Wwn7WnylNtQ/mqdefault.jpg)
Comes to something when items you recall from when you were young look so vintage! Makes me feel old! Great restoration by the way.
I had old radios as a kid, but nothing as high end as this Grundig, so it was quite exciting to get this one up and running. I know what you mean about stuff we had as kids now being vintage and collectable - I never had a Raleigh Chopper but always thought they were cool and wanted one - now they fetch mega bucks.....
@@GrumpyTim I had a chopper in the 70's and when I upgraded to a racer bike in the early 80's I tried selling it. No takers and it stayed in my parents garage for years before finally going to the dump. The racer bike is still in my parents garage to this day 40 years later. Just wish the chopper was......
I think a lot of choppers went that way - when racers became the thing, no one wanted stuff like choppers. Mind you, the old racers have quite a following these days (not with the value of the chopper unless they're something exotic) - I regularly see old racers out on the roads, with their downtube shifters etc - I have two 80s racers myself and still enjoy riding them, it's quite a giggle.
I have a radio like yours, and mine was made in Portugal.
My wave selector was also stuck in FM, and I think that the reason is in 1973, the year of manufacturing of this radio, Portugal lives a dictatorship, and the company's locked the radio to the person don't listen foreign radios. If you look well, the FM selector is different than others. Thank for your video.
Regards.
Cheers Joao, I hadn't thought about the possibility of radio censorship to control what people could listen to, but it makes sense.
very service frendly radio,rare to see..well done
Cheers Ivan, I find older stuff like this much nicer to work on rather than battling endless plastic clips just to open the case on modern items. Cheers for watching
Recently, at a local flea market, I bought a non-working Grundig C4500 for 10 bucks. Blown fuse due to shorted electrolytic capacitor. Changed all of them but while fiddling - burned the output transistors. I changed them to Soviet analogs, adjusted the coils and got excellent receive on SW and FM. MW and LW due to local noise cannot yet be estimated. It has a similar design and I am very surprised how such a simple design can work so well.
Hi Vlad, simple designs suit me perfectly - I guess that's why I mostly enjoy fiddling with old equipment. Modern stuff annoys me - just getting inside can be a task in itself - endless plastic clips and stupid security screws drive me mad!!! Ever taken an Epson printer apart - so many fiddly little clips - easy and quick for them to assemble in the factory but you're never intended to get it there and fix them (but I still manage!!!!).
This radio looks like it should be 5" x 10" but it's really like 10" x 20"! Its like many of the ones I used to see in catalogs. You look at the radio in the catalog and think, "Oh that looks like a nice small portable radio!" but in real life its GINORMOUS like it dwarfs a spray can of switch cleaner, it's actually about 2x larger than the photos make you think - they photograph it next to huge stuff to make it look small !! Lots of products did things like that to make them look either bigger or smaller depending upon the goal of the manufacturer!
Hi D Gillies, you're absolutely right - I've had radios in the past that look more or less like this one, but they were half the size, if not smaller. This one is really quite a beast - I was tempted into getting this radio after seeing Techmoan's video showing a Grundig Ocean Boy 210, which is positively massive - th-cam.com/video/3CARjPj6lFE/w-d-xo.html - I couldn't afford one of those so I opted for something a little simpler but still having a bit of presence when you see it in the flesh.
My solution for stuck rotary (variable) capacitors: If the axis + housing is made of metal, heat it up a little with the tip of the soldering iron at the socket. Of course not so much that the plastic pulley melts :-) If well warm some WD5 on the front/back. Usually it starts to rotate again quickly after heating up. If it cools down and becomes stiff again, just repeat 2,3 times. Even very stubbornly stuck (very resinous grease) will be released again. Because solvents (isopropanol, acetone etc.) alone usually only help for a short time. Often it is not enough to make the axle turn again by the capillary effect alone. With the key sets (wave/band range switches) I drill them carefully in the middle with a 1mm drill, depending on the length 1-2 times (only drill through the cover plate). Afterwards flood them well with contact cleaner using the spray tube. Now it is important to switch each key 30-50 times. I have done this 100 times with the drilling, nothing ever happened at a switch because of this. It has always worked, even in very stubborn cases.
I use the heat technique to free up sticky old oil on other mechanical stuff but it didn't occur to me when faced with a sticking tuner, so I did it the hard way - it worked ok on that occasion and the tuner is still working perfectly.
Great idea for the selector switches, I've got some other radios in the "waiting to be fixed" pile so I'll adopt your method if any of them have crackly old switches.
Cheers for the suggestions.
Well done getting that modern transistor based radio working! 👍
I'm glad I managed - I just fancied a nice retro radio to listen to - I've spent the last however many years listening to CDs, MP3s and DAB radio - it's fun to be reunited with a real tuning dial!!!
@@GrumpyTim it is and old analogue radios are more efficient than digital ones as well! I like valve radios.
@@BensWorkshop You're absolutely right about digital radios being power hungry - most DAB radios I've had anything to do with will run for about a day on batteries, whereas an analogue one will last weeks. I haven't played with valve equipment for years but valves are rather fun.
@@GrumpyTim And also radios with digital tuners.
@@BensWorkshop I think digital tuners mostly past me by - never had a serious radio with a digital tuner, although I do have one in my car.
_A very nice example of the Grundig family._
Cheers D Ilic, I was hooked on the idea of getting one after I saw Techmoan's Ocean Boy - I couldn't really afford one of those but after a bit of searching I loved the look of the Concert Boy, and it's still in regular use now.
@@GrumpyTim _These radio receivers are dry gold. I had it and thieves stole it from me. I've been remembering it for 40 years and I still haven't regretted it. Big greetings from Sibenik-Croatia._
Ah that's not good having it stolen. Do they ever turn up second hand in your area?
@@GrumpyTim _Very little, almost none. If it does appear, everything is in a catastrophic state and the electronics are scattered._
That's such a pity, there seem to be a few that turn up on ebay over here, although sometimes they're in a bit of a state.
Great video! thanks for sharing!👍👍
Thanks hadi reg, glad you liked it. I'm really pleased with the radio now I've got it working - I might do a bit more tidying on the case sometime, try to make it look even better but it works and that's the main thing.
I think I've owned one of these .. I remember the antenna and handle got in the way of each other because of it's slim design
Absolutely right Lamborghini, it's not so bad if you're just leaving it on a table like I do, but if you're intending to use it as a portable, you're constantly lowering the antenna so you can use the handle. Lovely radio all the same - I'd had old radios when I was a kid, but nothing as good as this one.
@@GrumpyTim it must be this very model ..no other model has this silver shiny design and the long handle interfering with the antenna. had one in the mid 80s. I did not know the model or manufacturers name. makes me wonder if the song "cube - concert boy" is based on this radio
Ooh, I don't know that track, I'll check it out.
There's also another version of this radio, I think it was a slightly later version, which has a wood effect grille rather than the black plastic version with round grille holes as on my radio - I preferred the looks of this one, so that's the one I got.
@@GrumpyTim yes I like this one as well, probably because this was likely the one I had.will probably pick one up if I see it on any auction site. the track is great , one of those long forgotten songs that sounds familiar, with the late Paul Griffiths on singing.
The Short wave is allways on old radio not like today , you're right i prefer also listening "real" radio , that's good to know for exemple listening moskow and you're in australia ^^
Easly fixable and durable ^^
I have a good 1985 philips receiver with 10X short wave scale and usb , ssb , capable to listen CB etc .
Yeah, it's easy to forget how good old radios were - these days we're encouraged to listen to digital radios with a very limited amount of channels, they're incredibly hungry for power because they are actually running a computer to decode the digital signal rather than a simple receiver on the old radios.
It's good that there are still a few people listening to the old radios - it's a much more engaging experience.
Amezing old redio Antique
Cheers Ganesh, I'm particularly fond of old technology like this, it's usually much easier than modern stuff to fault find and repair, plus it's just cool too.
Cheers for watching.
I really need one grundig radio
Hi mirbasharkhan - depending on where you're located, old radios like this often turn up in junk shops, flea markets, boot sales and so on. They can also be found on auction sites like ebay, but often the sellers tend to expect a bit too much money for them on those sites. The bigger difficulty is that more often than not these old radios need to be repaired before they will work again - you're unlikely to find anyone who can do this for you unless you're good at fixing stuff yourself - or at least that's the case in the UK.
Hello GrumpyTim! Seen from the point of the yellow radio scale this should be a 2nd generation Concert-Boy 1100 (?) The one with the "facelift", because the device was built over more than 5 years. But normally the CB 1100 with yellow scale also has the (pseudo) "perforated" [so called] Grundig "Rally" carrying handle. At least that's what I have heard. Mine has also just been finished. It is the Verson with white scale here: th-cam.com/video/XFh3aIb408E/w-d-xo.html I had to adjust the AM-range a little bit because the reception at AM was weak. The remaining bands are all very good, especially the FM reception is really excellent. A nice portable unit from the 1970s radio era.
Hi HiFi Boy - I saw some of the ones with the perforated handle when I was looking for one I quite liked the look but the one I thought about buying had a damaged plastic window over the tuning scale so I bought this one instead. It's always possible that someone has replaced my handle sometime in the past.
Just watching your video - wow, yours is in great condition.
I'd spent many years just listening to DAB radios and I'd forgotten how much fun it is to manually search for a random channel. I like listening to strange stations on short wave at night. The FM reception on mine is fantastic too - shame they keep threatening to turn off all the FM transmitters in the UK because "everyone uses digital radios these days"!!!
Respect🎉
Cheers Іштван Додої, hope you liked the video.
Thank you for this valuable debug repair video. My dad bought one GRUNDIG Concert Boy 1100 in 1970s (cost was his entire one month of salary (2000NT or 50Dollars) working as a government employee) and it has been in Taiwan's high moisture environment. It has travelled from Taiwan to Jordan to Argentina and now back to TAiwan. I tried to turn it on and can hear the humming of the 4.5Ohm 3W speaker but none of the band worked. Opened it up and there are observable rusts on all the metal part especially the canister enclosing some electronics with a part label of 19427-002 (the rectangular canister tuner like part to the upper left of the speaker in your video right below the carbon rod thing for antenna pickup. Is there any chance to repair this even if I have to send it over to somewhere?
Hi twp tipoc, my general feeling would be, that your Dad's radio should be repairable, the tricky part might be finding the right person to repair it - an enthusiastic person who repairs old radios for a hobby is what you're looking for. You could try searching TH-cam for people who repair vintage radios in Taiwan (it doesn't need to be your specific model of radio because radios from different manufacturers tend to use more or less the same technology for a given period of manufacture). You might get lucky and find someone who'd be willing to take a look without having to export the radio to another country.
That's my initial thoughts anyway, let me know how you get on, it would be great if you could hear the radio working again.
Користуюся Грюндіком Мюзік Бойз 1100, як перенастрояти Фм діапозон
But how does the back come off? Please.
Hi Mervyn, I haven't got the radio with me this weekend, but from memory there are two screws somewhere towards the bottom of the case - I can't remember if they're inside the battery hatch or if they're just in recesses accessible from the outside. The top edge is a bit more fiddly, I seem to recall that there are pegs that latch into the top of the case and the pegs just release as you hinge the bottom edge away - this also releases the friction contact for the ariel which can be a bit tight and maybe even rusted. That friction contact also tends to make a poor contact once it's been taken apart so you might need to clean it up. It's been a while since I've looked inside the radio, I can always take a look after the weekend if needed.
Mine has a Bass level problem. When upping the Bass it distorts the bass. Sounds like a cone that is ripped or the coil in the speaker. Do you know where I may be able to get a speaker from? Apparently I read somewhere that the speaker was designed for that model radio. I have not taken it apart to check the speaker. The radio, otherwise, is all working perfectly. I never switch it off! I live in New Zealand. Thanks.
Hi Wilbert, I haven't found a good resource for vintage spares apart from the usual ebay - sometimes I end up getting another of the same item (usually a bit more battered) and using that one for spares. It would be worth taking the speaker out and examining it, because it might be as simple as the flexible edge of the speaker coming detached from the metal surround, and that can easily be glued back into position. I've also successfully re glued a loose centre dome that was rattling in a speaker. If the problem is deep down in the coil area, it might be a bit more tricky to do anything about. I have repaired a broken coil in one speaker in the past, it worked ok but not perfectly.
@@GrumpyTim Thanks so much. I will try that and let you know the results, so that it may help others, if other people experience the same problem.
I'd love to hear how you get on - definitely worth having a look first and then decide how to proceed.
@@GrumpyTim Tried a similar type of blaupunkt speaker as well as removing and checking the Grundig speaker but still is the same. No rips in the cone or rubbing on the coil. It must be in the electronics. The radio has lost no volume otherwise and works perfectly otherwise! Is there some sort of electronic component hat has failed in the bass level department?
Hi Wilbert, I'll try to get round to looking at my radio to see if I can come up with any more suggestions.
Hi, I have one Grundig C6000, I now see that metal part as a cover same, what inside radio stage? Because of this part is problematic.
Hi Nadir, as far as I'm aware the shielded metal section contains the FM (VHF) circuitry (or the FM module as some people refer to it). The FM section had previously been fixed on my radio so I didn't have to touch it. If I'm correct about it being the FM circuit, then the other channels should work ok. Hope this helps a tiny bit.
@@GrumpyTim Hi Tim, Yes I thought it was FM circuit too, thank you very much. My main problem is that there was a (cap)popping sound came.
@@heleniumsun Hi Nadir, does your radio work at all now? If there was a capacitor pop sound and the radio went completely dead, you might want to look at the power section or the amplification section. If the radio makes some noise, even if it's just crackling, you could potentially start checking individual components (assuming you're ok at soldering) - it's not the most scientific approach but replacing one component at a time can sometimes work, maybe starting with the electrolytic capacitors and then maybe the transistors.
If you have ebay or similar, search for something like "LCR-T4 Transistor Diode Tester" - these things are cheap and really good for testing individual components once you've carefully unsoldered them from the board.
sir, I have a radio "" grundig concert boy 1100 "" for a few days the song becomes interrompus for a few seconds then it returns to normal and now it only works for a few seconds and stops and remains only a small noise .. I don't know please help me. what is the source of the problem ??? I love this radio
Hi Karim, it's kind of difficult to diagnose problems with a radio when it's not sitting in front of me but I can at least make a few suggestions. I don't know how much knowledge you have so I might just be telling you stuff that you already know.
Does the fault happen if you change to another band with the selector switches - a dirty band selector switch could cause the radio to play up like that. If you have dirty band selector switches, a lot of people use DeoxIT or a similar switch cleaner.
Assuming the fault happens on all bands, the same fault could happen if the volume slider is dirty, but I would expect it to make at least some difference if you moved the volume slider.
Are you running on battery power or mains? You could try swapping to batteries if you're using the radio on mains power in case there is an issue with the mains transformer / rectifier or anything else in that area. Likewise, if you're running on batteries, have you checked that they're not flat?
After that, and assuming none of the bands are working, you might need to look at the amplification circuit - a failing transistor, capacitor or resistor could well be your problem - it depends on how used to working on electronics you are - I don't use the most scientific methods for tracking down faults like this - if I can roughly work out what area the fault is in, I'll usually unsolder components (one at a time) that I suspect might be the problem, then test them on a component tester and refit them if they test ok or replace them if they are faulty.
Obviously, before you open the radio, UNPLUG it from the mains power.
If you're not confident on working on electronics, then maybe don't start taking things apart because you might make the radio worse.
Sorry I couldn't be much more specific.
@@GrumpyTim thank you. I will follow your advice and I will inform you of the results. Merci
Excellent, hope you make some progress - if nothing else, you might be able to determine what isn't wrong, and from that, get closer to finding out where the problem is.
hallo, ik heb een grundig satalite 2000 moet repareerd worden in stad groningen Waar?
Hallo Harry, bedankt voor het bericht. Als Google Translate correct werkt, heb je een mooie Grundig Satellit 2000 die gerepareerd moet worden. Vroegen jullie wat tips die je kunnen helpen om zelf de radio te repareren of vroeg je of ik radio reparateurs ken in / of nabij Groningen?
Ik ben gevestigd in het VK en ken geen enkele andere radiohersteller dan degene die ik op TH-cam heb gezien.
Afhankelijk van wat er mis is, kan ik u misschien adviseren of op zijn minst enkele suggesties doen over uw radio.
Ik hoop dat dit een beetje helpt.
Proost
Tim
Anyone know how to replace the nylon cog in the tuner gears?
Hi Andrew, just had a quick look at my radio - I appear to have a steel gear driving a larger brass gear. From the look of it, the steel gear is machined as part of the drive shaft. On the other end of the drive shaft is the plastic pully with the tuner cord wrapped round it - that pully has a split collar on the outer side which has a chamfer on the end - the chamfer is used to slide a circular spring clip up and onto the flat surface of the collar, which in turn makes it grip the steel drive shaft. Of course, they could have modified the design over the years, and yours could be different.
Don't know if that helps at all.
@@GrumpyTim Many thanks for that response my friend, I have relegated that radio to the parts bin for now. Have a nice evening..
What screws to open it tu
Hi Maurits, there are just a couple of screws on the bottom of the case - with the machine sitting face downwards, once these two screws are out, the rear panel lifts up from the bottom, and once you've got a little bit of an opening, the clips at the top should disengage along with the rather dodgy aerial connection, which is just a friction fit onto the circuit board.
@@GrumpyTim Ok i open it yesterday not any problem ,and cleaning it a littel .Itt sound like a great Concert on FM clear audio .But but when i go to MW ,or KW1 or KW2 i can hear some FM splatter from a local station 1 km away .Maybe you now the problem iam not an engineer thx for post the video and comments CU 73, de ON3MK Maurits
Hi Maurits, my radio repair skills are relatively limited and I use a fairly dumb method of fault finding, but strangely enough, that usually gets me to a successful outcome pretty quickly. I'll usually open the radio (or any other piece of similar equipment) and look for the blooming obvious (like the broken tracks and solder joints on my radio in the video), and often, that can sort the issue. After that I'll work through the section where I suspect the problem is, and often I'll remove and test components like capacitors or transistors, replacing any that are faulty with a compatible part. In some cases, the project will be on the workbench for a long period of time and I'll just put it to one side until I have another bright idea.
It's likely that the FM side of your radio is fine and there's an issue with the AM section - it could be a faulty part, or simply that the radio needs to be realigned - I say simply, but I've never had to realign a radio, I guess that's something I'll find out how to do when I need to do it, but here's a video from Mr Carlson's Lab about radio alignment which might at least give you an understanding of the basic concept. th-cam.com/video/WvkAznAG-7k/w-d-xo.html
@@GrumpyTim When I slide in the rod antenna it's gone and the radio is very fragill inside I'll leave it as it is the FM sounds great that's the most important thing to me too .Anyway many thanks for your reply and posting your videos .Looking forward to further, take care and keep the radios alive 73, Maurits