What an amazing video! 🛠 I'm truly impressed by the expertise and skill you showed in bringing the 1965 tube radio back to life. Devices from the 60s are real treasures, and it's fantastic to see how you breathe new life into them. Your explanations were clear and technically precise - even professionals can learn something here. Thank you for this inspiring insight, and I'm already looking forward to your next project! 😊🎶
Superb, Manuel. I'm jealous of that radio. Performing as beautifully as it looks now. The weather up here in Scotland has improved dramatically. Sunshine and 10C warmer. You must have re-aligned the jetstream at the same time as the Grundig!
Yes, it took some effort, but I sent the jet stream over to your end of the world 😊 Proof of that is that it got a little chilly here lately (16 degrees 😊)
HI Manuel. I live in the northwest of England and having checked just now can confirm BBC Radio 4 is still alive and well broadcasting on 198 khz. Gerry
@@electronicsoldandnew BBC R4 continues on LW for now Manuel and it is going to be a sad day when it ends. I have quite a collection of older MW/LW only radios and here in the UK R4 is now just about the only thing I can receive on them. Also Manuel I should also have added that I really enjoyed the series, and indeed I do all of your work. Thanks for sharing the expertise and experiences with us! Gerry
Hi Manuel. In my long past youth, I worked as a lineman and used lots of different knots on ropes including your slipknot. It never occurred to me to me to use it on the many, many dial cords I have restrug. Once you mentioned it, it was obvious to me. Wonderful idea. The way you worked the tuning capacitor was very ingenious, good job in bringing back this radio. I wish you would have shown us the redesigned dial pointer at the end. But I just know you got it right. In all a very good video series!
Manuel, it seems as though each Saturdays release brings more interesting details, I appreciate giving credit when you adopt someone’s else’s practice. Your pride in doing it correctly and not making do shows in all of your videos, this one to me illustrated by the end condenser mounting.
Thank you for your kind words, Mack. This particular subsection of the electronics hobby is particularly close as a community, and I think it only fair that one give credit where credit is due. It’s very difficult to invent anything new, so when you use someone else’s idea (even if they took it from some other person), I think it’s important to reference that.
Our entire community of hobbyists, electronics and radio engineers learn something from each other through various TH-cam channels. Best regards from Poland.
Thank you for the video and the slipping knot tip, great help. In the past I have used a tea light wick holder cut to shape instead of the brass rivet and has worked. A little short, but 2 could be used.
Stellar restoration again Manuel, I really enjoyed this one and I'll remember the adjustable knot bit (ok I added a bookmark :-) ). Thanks for taking the time to make this series and sharing it with us. Be well my friend
Lots of handy tips. Thank you Manuel. Like you I thought 198 kHz was shutting down. It will happen eventually but for now my understanding is that the Beeb is no longer offering any distinctive programming on that frequency - just the standard Radio 4 output.
Beautiful job Manuel. Love the slip knot idea, is that what they use for tent ropes? it looks like it. Good job on the new pointer. Don't worry about adjusting the 'trimmer' number three with a coil to do the high frequency trimming. It's so easy to make the simplest mistakes, just ask my wife 👍😄
😊 my wife says the same thing while looking strangely at me 😊 I think the knot is the one used on tents, and it would make sense. I could kick myself for not looking into this earlier. Oh well, live and learn.
Great dial string tips. Radio 4 still on, switch off likely due in June 25. Apparently the LW signal has an embedded function for controlling peak/off peak electric tariff rates in homes with old time clocks! This is what has probably saved it up to now.
Another great video and we learn a lot with each video. Question: When you made your coil antenna did you do any calculations to find the ideal impedance for that frequency range?
According to Wikipedia BBC radio 4 is still broadcasting on Long Wave. I couldn’t verify this and I only use DAB these days. It’s no longer broadcast on Medium Wave
👍 I checked again last night, and it is indeed radio four. I think they stopped for a while and then resumed. I only really need it to test the radios 😊
Hi Manual, awesome work again, and thanks for that knot trick, I'll need that soon. Do you have a link for that adjustable rectifier/resistors you showed at the end? I know you did a video about it but can't find it right now! Thanks!
Hi Manuel. Radio 4 LW is still on the air. It is expected to stop sometine later this year. The older electricity meters in England use a night and day rate which switched over on a LW signal transmitted from the BBC LW Transmitters. This is being turned off in December 2025. So I guess Radio 4 will go shortly before then. The Grundig looks great BTW.
BBC Radio4 Longwave also does the Radio Teleswitching ( RTS) signal for off-peak electrcity meters in some areas, using the same transmitter. I believe the current schedlued shutoff date for Radio 4 198KHz is 30th June 2025 to allow for all the old RTS meters to be changed over to a new type. BBC Radio 4 Longwave no longer has separate programming over the MW / FM Radio 4 is my understanding. Also, I believe the extension on the broadcast on longwave is dependent on the transmitter actually holding out that long as my understanding is that uses specific, very rare and expensive valves/tubes which are virtually unobtanium now.
@@electronicsoldandnew Im Portuguese too Born in Acores, and living in the United States. :) I started working on Electronics in 1986, and Still at it. Great VIdeos you have. Keep Up the Great Work :)
Hey Manuel, that’s exactly what I did with the clutch mechanism using the sandpaper method and it worked perfectly in my Grundig 4192. The only decision I had to make is which surface of the clutch got which side of of the sandpaper.
You can, if you want to be absolutely precise, but in this type of circuit it really doesn’t matter. Just know that your readings will be a little higher than those listed.
From Wikipedia: "In March 2024, they announced that Radio 4 would turn off its medium wave frequencies and end its separate schedule for LW by April 15th. BBC Radio 4 shut down its long wave transmitters on, or shortly after, this date. 30 June 2025 will see the cessation of the usage of Radio 4's long wave frequencies for the radio teleswitching service. "
Octopus Energy in the UK has confirmed they are rolling out replacement smart meters in the UK to customers still on Radio Teleswitching Meters. The RTS meters use signals broadcast from BBC Radio4 198KHz transmitter to switch off peak electricty. So, Radio 4 will be there until 30 June 2025, providing the current set of tubes/valves in the transmitter actually hold out, as another reason for shutting down the 198KHz transmitter was due to very rare, expensive and virtually unobtanium tubes/valves used in it. Radio 4 longwave no longer contains independent programming and is now a simulcast of standard Radio 4 programming
Radio 4 is still going out on 198 kHz, but it is no longer being announced on BBC as a frequency for radio 4. The transmitter (I think) is run by a 3rd party operator rather than the BBC themselves, and transmission will cease when the transmitter can no longer be maintained. They stopped 'split programming' a few months ago, so what goes out on 198 is just the same as BBC Radio 4 on FM and DAB, and Internet.
It is still run by the BBC. The programming was changed in preparation for the shutdown of the transmitter. The only reason it is still operating is due the RTS (Radio teleswitiching) meters used in some areas that need to be replaced before it can fully shutdown. Unfortunately, even if we wanted 198KHz to continue, the existing transmitter is not capable of continuing much longer. Parts have become unobtainable for it.
The famous Droitwich longwave transmitter of BBC R4 will be switched off for good sometime this spring. It should have happened a good while ago but the transmitter was also used to broadcast an inaudible phase-modulated digital signal for controlling electricity meters and the meter company paid for the transmitter operation (including the BBC's audio) for the time it took them to replace the remaining meters depending on the longwave signal. This has now been achieved and so the end of 198 kHz is nigh. Sad but true.
@@electronicsoldandnew It will be a shame to lose 198KHz, but it was deemed that Longwave is now obsolete technology. The current 198KHz R4 transmitter can't continue to be maintained as the valve/tube set used in its output stage is rare, expensive and virtually unobtanium now.
@@EsotericArctos The transmitter of Radio Luxemburg's French service (234 kHz, Transradio Sendersysteme Berlin, 2 x 750 kW) was a mere 10 years old when they switched it off. I'm sure the Beeb could have had it for little money.
@@fotoralf I am wondering if there is a reason for sticking to the valve transmitters as someone from the maintenance company for the sites said they had a shutdown RTE transmittter, but for some reason they had stuck to the older valve transmitters for actual transmission. Might be something to do with Radio 4 198KHz also having history being used as a time and frequency standard. The frequency is extremely stable. I guess either way, there will be commercial reasons for persisting with the shutdown. Just like Australia persisted with the shutdown of Shortwave transmissions, despite a considerable backlash on it.
RTÉ Radio One has ceased All Broadcasts on LW 252. Our Ex-Pats are not happy with this Decision. They were told "Use the Internet". Most Manufacturers of Radio Receivers no longer offer an LW Feature on their Radio Receivers because "No one broadcasts on this Band anymore." and Broadcasters don't want to transmit Signals that nobody can actually receive.
I believe that the knot that you used on the dial string is known as a "taught line hitch", which is known to most former Boy Scouts and other campers. th-cam.com/video/GTi6j7d16Xc/w-d-xo.html
Hey David, but no, after setting the language it is always hoping for the right language, most downloads go straight into the trash (badly) ;-) Can only watch the videos online :-/ Worse with german videos that are dubt to english including the video titles. This is really annoying
What an amazing video! 🛠 I'm truly impressed by the expertise and skill you showed in bringing the 1965 tube radio back to life. Devices from the 60s are real treasures, and it's fantastic to see how you breathe new life into them. Your explanations were clear and technically precise - even professionals can learn something here. Thank you for this inspiring insight, and I'm already looking forward to your next project! 😊🎶
👍
Great galloping Gandalf, what a gorgeous Grundig! I also love getting a basket case going again. Well done sir!
Thanks Derek.
Superb, Manuel. I'm jealous of that radio. Performing as beautifully as it looks now.
The weather up here in Scotland has improved dramatically. Sunshine and 10C warmer. You must have re-aligned the jetstream at the same time as the Grundig!
Yes, it took some effort, but I sent the jet stream over to your end of the world 😊 Proof of that is that it got a little chilly here lately (16 degrees 😊)
HI Manuel. I live in the northwest of England and having checked just now can confirm BBC Radio 4 is still alive and well broadcasting on 198 khz. Gerry
Yes, that is great news. It adds one more station for when I test my longwave reception.
@@electronicsoldandnew BBC R4 continues on LW for now Manuel and it is going to be a sad day when it ends. I have quite a collection of older MW/LW only radios and here in the UK R4 is now just about the only thing I can receive on them. Also Manuel I should also have added that I really enjoyed the series, and indeed I do all of your work. Thanks for sharing the expertise and experiences with us! Gerry
My pleasure
Hi Manuel. In my long past youth, I worked as a lineman and used lots of different knots on ropes including your slipknot. It never occurred to me to me to use it on the many, many dial cords I have restrug. Once you mentioned it, it was obvious to me. Wonderful idea. The way you worked the tuning capacitor was very ingenious, good job in bringing back this radio. I wish you would have shown us the redesigned dial pointer at the end. But I just know you got it right. In all a very good video series!
👍 thanks
Again, I've got to say I love that Cabinet! 👌 Excellent work on that dial pointer!
Thanks
Manuel, it seems as though each Saturdays release brings more interesting details, I appreciate giving credit when you adopt someone’s else’s practice. Your pride in doing it correctly and not making do shows in all of your videos, this one to me illustrated by the end condenser mounting.
Thank you for your kind words, Mack. This particular subsection of the electronics hobby is particularly close as a community, and I think it only fair that one give credit where credit is due. It’s very difficult to invent anything new, so when you use someone else’s idea (even if they took it from some other person), I think it’s important to reference that.
Our entire community of hobbyists, electronics and radio engineers learn something from each other through various TH-cam channels. Best regards from Poland.
I agree completely. Thank you.
Superb job!!! Well done!! Excellent tips and thank you for sharing that knot. Man, that will save me a lot of time and cursing!!!
Yes, less cursing … we may make it into heaven yet 😊
Great restoration again, Manuel.
Thanks a lot for sharing that knot. I hadn't seen it either and it will definitely come in handy in the future.
👍
Thank you for the video and the slipping knot tip, great help. In the past I have used a tea light wick holder cut to shape instead of the brass rivet and has worked. A little short, but 2 could be used.
👍
Excellent restoration and video series.
Thanks
Very nice Radio. 👍👍👍
👍
Stellar restoration again Manuel, I really enjoyed this one and I'll remember the adjustable knot bit (ok I added a bookmark :-) ). Thanks for taking the time to make this series and sharing it with us. Be well my friend
👍
BBC R4 on 198 still transmitting for the present time.
👍
Hi, good work as usual. Yes BBC Radio 4 is still broadcasting, I’ve just checked it on my Hacker portable MW/LW radio. I’m based in the UK in Suffolk.
Good to know. I always find it amazing that I pick it up so clearly here on the island of Madeira.
Lots of handy tips. Thank you Manuel. Like you I thought 198 kHz was shutting down. It will happen eventually but for now my understanding is that the Beeb is no longer offering any distinctive programming on that frequency - just the standard Radio 4 output.
👍
Beautiful job Manuel. Love the slip knot idea, is that what they use for tent ropes? it looks like it. Good job on the new pointer. Don't worry about adjusting the 'trimmer' number three with a coil to do the high frequency trimming. It's so easy to make the simplest mistakes, just ask my wife 👍😄
😊 my wife says the same thing while looking strangely at me 😊
I think the knot is the one used on tents, and it would make sense. I could kick myself for not looking into this earlier. Oh well, live and learn.
Yes, when downloading audio in portuguese or spanish, I don't now
It’s funny … had a good laugh the first time I heard myself in Brazilian Portuguese, especially as I detected all the errors 😊
Great dial string tips. Radio 4 still on, switch off likely due in June 25. Apparently the LW signal has an embedded function for controlling peak/off peak electric tariff rates in homes with old time clocks! This is what has probably saved it up to now.
👍
Another great video and we learn a lot with each video. Question: When you made your coil antenna did you do any calculations to find the ideal impedance for that frequency range?
No, I just wrapped two turns in the former and tested it. It worked well so I left it like that.
I live just north of London and like you I thought BBC Radio 4 was shutting down, but it is still going strong.
👍
According to Wikipedia BBC radio 4 is still broadcasting on Long Wave. I couldn’t verify this and I only use DAB these days. It’s no longer broadcast on Medium Wave
👍 I checked again last night, and it is indeed radio four. I think they stopped for a while and then resumed. I only really need it to test the radios 😊
@ any years ago now it used to e The Light Programme, Radio 2.
Hi Manual, awesome work again, and thanks for that knot trick, I'll need that soon. Do you have a link for that adjustable rectifier/resistors you showed at the end? I know you did a video about it but can't find it right now! Thanks!
There’s a link to it in the first video of this series (in the description)
@@electronicsoldandnew OK I'll look that up, thank you. I looked everywhere but there! haha! Thx
Hi Manuel. Radio 4 LW is still on the air. It is expected to stop sometine later this year. The older electricity meters in England use a night and day rate which switched over on a LW signal transmitted from the BBC LW Transmitters. This is being turned off in December 2025. So I guess Radio 4 will go shortly before then. The Grundig looks great BTW.
Understood. Pity.
BBC Radio4 Longwave also does the Radio Teleswitching ( RTS) signal for off-peak electrcity meters in some areas, using the same transmitter. I believe the current schedlued shutoff date for Radio 4 198KHz is 30th June 2025 to allow for all the old RTS meters to be changed over to a new type. BBC Radio 4 Longwave no longer has separate programming over the MW / FM Radio 4 is my understanding. Also, I believe the extension on the broadcast on longwave is dependent on the transmitter actually holding out that long as my understanding is that uses specific, very rare and expensive valves/tubes which are virtually unobtanium now.
👍 what a pity. Another one bites the dust
where i can find these ceramic Screw drivers für adjusting the coils?
I found them on eBay. Not sure where exactly. Search for ceramic screwdriver set
Nice Video. You sound like a Portuguese Accent :)
I am Portuguese 😊 living on the island of Madeira. Grew up in RSA.
@@electronicsoldandnew Im Portuguese too Born in Acores, and living in the United States. :) I started working on Electronics in 1986, and Still at it. Great VIdeos you have. Keep Up the Great Work :)
Thanks. 🇵🇹
Hey Manuel, that’s exactly what I did with the clutch mechanism using the sandpaper method and it worked perfectly in my Grundig 4192. The only decision I had to make is which surface of the clutch got which side of of the sandpaper.
I followed Derek‘s advice regarding the side to use, and it worked perfectly first time, so I left it as is.
Do you need to take in to account the ohms/volt of original voltmeter? Just out of interest.
You can, if you want to be absolutely precise, but in this type of circuit it really doesn’t matter. Just know that your readings will be a little higher than those listed.
From Wikipedia:
"In March 2024, they announced that Radio 4 would turn off its medium wave frequencies and end its separate schedule for LW by April 15th.
BBC Radio 4 shut down its long wave transmitters on, or shortly after, this date. 30 June 2025 will see the cessation of the usage of Radio 4's long wave frequencies for the radio teleswitching service. "
Octopus Energy in the UK has confirmed they are rolling out replacement smart meters in the UK to customers still on Radio Teleswitching Meters. The RTS meters use signals broadcast from BBC Radio4 198KHz transmitter to switch off peak electricty.
So, Radio 4 will be there until 30 June 2025, providing the current set of tubes/valves in the transmitter actually hold out, as another reason for shutting down the 198KHz transmitter was due to very rare, expensive and virtually unobtanium tubes/valves used in it.
Radio 4 longwave no longer contains independent programming and is now a simulcast of standard Radio 4 programming
👍
Radio 4 is still going out on 198 kHz, but it is no longer being announced on BBC as a frequency for radio 4. The transmitter (I think) is run by a 3rd party operator rather than the BBC themselves, and transmission will cease when the transmitter can no longer be maintained. They stopped 'split programming' a few months ago, so what goes out on 198 is just the same as BBC Radio 4 on FM and DAB, and Internet.
I see. Well, I hope it lasts for a long time yet.
It is still run by the BBC. The programming was changed in preparation for the shutdown of the transmitter. The only reason it is still operating is due the RTS (Radio teleswitiching) meters used in some areas that need to be replaced before it can fully shutdown.
Unfortunately, even if we wanted 198KHz to continue, the existing transmitter is not capable of continuing much longer. Parts have become unobtainable for it.
The famous Droitwich longwave transmitter of BBC R4 will be switched off for good sometime this spring. It should have happened a good while ago but the transmitter was also used to broadcast an inaudible phase-modulated digital signal for controlling electricity meters and the meter company paid for the transmitter operation (including the BBC's audio) for the time it took them to replace the remaining meters depending on the longwave signal. This has now been achieved and so the end of 198 kHz is nigh. Sad but true.
Such a pity
@@electronicsoldandnew It will be a shame to lose 198KHz, but it was deemed that Longwave is now obsolete technology. The current 198KHz R4 transmitter can't continue to be maintained as the valve/tube set used in its output stage is rare, expensive and virtually unobtanium now.
Makes sense, I guess
@@EsotericArctos The transmitter of Radio Luxemburg's French service (234 kHz, Transradio Sendersysteme Berlin, 2 x 750 kW) was a mere 10 years old when they switched it off. I'm sure the Beeb could have had it for little money.
@@fotoralf I am wondering if there is a reason for sticking to the valve transmitters as someone from the maintenance company for the sites said they had a shutdown RTE transmittter, but for some reason they had stuck to the older valve transmitters for actual transmission. Might be something to do with Radio 4 198KHz also having history being used as a time and frequency standard. The frequency is extremely stable.
I guess either way, there will be commercial reasons for persisting with the shutdown. Just like Australia persisted with the shutdown of Shortwave transmissions, despite a considerable backlash on it.
RTÉ Radio One has ceased All Broadcasts on LW 252. Our Ex-Pats are not happy with this Decision.
They were told "Use the Internet".
Most Manufacturers of Radio Receivers no longer offer an LW Feature on their Radio Receivers because "No one broadcasts on this Band anymore." and Broadcasters don't want to transmit Signals that nobody can actually receive.
I can understand it. It’s a shame, but I do understand it.
I believe that the knot that you used on the dial string is known as a "taught line hitch", which is known to most former Boy Scouts and other campers. th-cam.com/video/GTi6j7d16Xc/w-d-xo.html
I’m now sorry I wasn’t a Boy Scout 😊 it could have helped me in my restorations
audio in portuguese
That function is completely created by TH-cam, and it takes a while to become active in all languages.
@@electronicsoldandnew Yes, but you can't shut it off, and because that I hate it, i want the original voice. 😎
I believe you can get the original voice. I had this on a few of my other videos and reverted to the original, and it seemed to work quite well.
@@birdy356 Click or tap the Settings gear on the video. Click Audio Track and select English.
Hey David, but no, after setting the language it is always hoping for the right language, most downloads go straight into the trash (badly) ;-) Can only watch the videos online :-/
Worse with german videos that are dubt to english including the video titles. This is really annoying