Testing the Audio Stage on this 1956 Braun TS2 Tube Radio, and Timing the Bluetooth Removal! - pt2
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- Опубліковано 14 жов 2024
- In this second episode of the Braun TS2 tube radio restoration series, I dive into the audio stage, performing a detailed frequency response test to see how the bass and treble controls affect the sound. Interestingly, these tone controls behave quite differently from what I’m used to-definitely intriguing!
But that’s not all! I also add Bluetooth to the radio for a modern twist and then, for a fun experiment, I remove it while timing the process. It turns out you can eliminate all traces of Bluetooth in less than five minutes, making this mod fully reversible-much faster than expected!
Enjoy the video, and stay tuned for the next step in this restoration journey!
🎥 Back to basics Series
Many tasks in this video are covered briefly, without deep explanations of the theory-especially for those new to tube radio restoration. For a more detailed understanding, I’ve created a tutorial series called “Back to Basics,” which goes into the concepts in depth. I recommend watching those videos to better follow the steps I don’t fully explain here. The playlist is:
• Back to Basics
🎥 Other videos mentioned in this video:
■ Tone Shaping in Tube Radios - • What do those Tone Pre...
■ Switch BT with Magic Eye signal - • Solving Bluetooth Nois...
■ SMD Board to Add BT to use Radio - • SMD Board to Add Bluet...
🙏 Want to support the channel? ●●●●●●
/ mcaldeira
paypal.me/maca...
#VintageRadioRestoration #BraunDesign #TubeRadioRepair
●●●● HUNDREDS OF OTHER VIDEOS TO CHOOSE FROM ●●●●
✿ DIY TEST GEAR: The title says it all:
• Zener Diode Tester - P...
✿ RESTORATION BUILDING BLOCKS: A series of videos showing detailed steps used the restoration process of tube equipment:
• How to safely check th...
✿ HowTo's: Various videos on some simple techniques and projects:
• Extend tube radio FM b...
✿ DIY CAPACITOR LEAKAGE TESTER PROJECT: One of the most viewed projects on my channel, with full design description and build instructions.
• Capacitor leakage test...
✿ DIY TUBE TESTER PROJECT: Complete design description and build instructions for this really handy device.
• DIY Tube Tester. Worki...
●●●● Plus full Playlists on some other completed restoration projects on this Channel ●●●●
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I feel that what you are doing here with restoration is much deeper and more important than the arguments you make here. What you are restoring represents the complex engineering skills it takes to make something as astonishing as a radio affordable , so that anyone can actually own a device that enhances his or her fundamentally human need to communicate at a level far deeper than ever before . This is life changing, and ultimately could change the course of our evolutionary history. So for me, changing a few caps , or adding blue tooth does not in anyway detract from the this fundamental reason (preserving the engineering knowledge and resourcefulness required) restoring these things is worthwhile .
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I totally agree with your comment, "my radio, my rules". You do great work of a very high standard, and I expect most detractors could not equal your standard. So keep up the good work!
Thanks
Braun use to think outside the box with things. These radios are fantastic and I love seeing them restored and saved.
On the guy who is complaining about Bluetooth, that person may need to get a real life. Sorry, but this is YOUR restoration, you do it your way. If you want to restuff capacitors, repaint the chasis, reprint labels add bluetooth, you can do so. Dave Tipton did a Goblin recently, and he redid a lot of things. It wasn't my ideal restore because it looked like a modern replica in the end, but it was the way he wanted to do it. I still enjoyed his video and would never disrespect him for it. People get too prescious on these things. There are so many ways a restore can be done with things that are not reversible, I have no idea why someone got stuck on your fully reversible bluetooth mod.
Thanks for the heads-up on the title error. Corrected now.
I think the problem is that many people have lost the ability to disagree civilly. It’s all polarised now - no in-between or simply accepting another point of view.
Hi Manuel. Ignore the extremists. I am absolutely on your side. Vintage radios are part of our cultural history. There is no better way to keep it than making it useful nowadays. I am making plans to install WiFi streaming devices into my vintage radios (a Marantz and a Saba from the 70s and a Telefunken tube stereo from when we were born) to create a multiroom environment without external devices to keep the appearance clean. I want tu use these radios, I am not a collector of shelf queens or a museum. I am not ashamed to do it, it's a legitimate way to preserve cultural history.
I agree 👍
Especially radios that lack FM, as there is very little (at least in my area) on the AM / Broadcast band these days. Restoring a radio without FM would leave me with something virtually unusable if I didn't add a fully reversible bluetooth mod or similar.
So how would your radios not be useful tuning into regular radio stations? Are you in a country that has done away with traditional radio modulation? Here in the states, we still have plenty of traditional FM and AM modulated stations, as we see no point in DAB and other inferior digital systems. Digital radio is not an end all, be all solution to anything at all. It's modern but that's all it is. Might save a little bandwidth and allow them to cram in more stations but how many stations do people really need? We got it right here across the pond, we don't just jump into things.
@@markr.1984 We still have plenty of choice on FM. AM is just very limited which is why I specifically said radios without FM :) Plenty of vintage radios here were not FM as FM started a lot later where I am. We do have DAB+, but again, these old tube radios don't get DAB+ without modifications.
The main thing that was being highlighted was that it is okay to modifiy these radios to accept a bluetooth module, or even a DAB module, and it can be done in a way that is fully reversible. None of these radios are more than electrical restoration and a case cleanup really. Once you strip a finish and refinish it, it is no longer original, often will be a different colour, so we are not doing that classic restoration to absolutely original condition. We make these radios safe to use, while keeping some of the character associated with older technology like tubes. Unless you want a shelf queen, you have to do things to make them useful in the modern world. A radio that is 80 years old was not designed for the way Radio is now. Back in the day, AM was primary broadcast band, a lot of radiostations did not broadcast 24/7 and they had a lot of live programming. People would gather around the radio at the time their favourite station would start broadcasting, and listen to whatever their favourite shows were. Radio these days is a lot different.
@@markr.1984If only that was the case in other nations. Here where I live in the UK I can only receive 2 radio stations on A.M. I have a mini retransmitter which I can plug a phone into to retransmit anything I want on a frequency I choose on AM. At least that way I can tune my old AM sets into something I want to listen to and the radio isn't just being used as a tube amp. But I still think bluetooth modules are fine to fit as a reversible alternative when there are few AM stations around. TBH I think it's a great thing to add as an additional feature.
Manuel, i agree with your point of view 100%. I restore radios to be used, not just to look good on a shelf. I'm not nearly as meticulous as you are, but what I do suits me. Keep doing what you are doing, I always look forward to viewing your videos
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I totally agree with you about adding blue tooth to radios makes a lot of sense and its always reversible if someone wants to remove it. The good reason to add it In my opinion there is very few stations on medium wave these days and not much else on other bands now. Most people do not have physical media these days or tape players record players Etc to connect so it makes a lot of sense in this digital media age.
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Hi Manuel, I 100% agree with you about adding BT to these older tube radios. When I started restoring, functionalising radios in the way you do there were plenty of radio stations available across the various wavelengths. In recent years Longwave has almost shut down, MW channels are also vanishing and FM is being replaced with DAB. That radio spectrum is a valuable commodity and the authorities wish to get more bucks for the Tx licences by cramming the space with digital muxes.
These older radios that we here all love, will go silent without either BT, which any family member can access with their phone or by using personal low power loop aerial transmitter units that can be fed from a DAB channel. Those restoring old CRT Tvs have to add a modulater to the TV fed from a video and audio source or they simply don't work. I believe that any restoration hobby should result in an item once more having a useful life.
I agree fully 👍
We don't have DAB here in the states or in Canada because we see no point in replacing FM with inferior sound quality digital modes . Also, in most places the bands are not that crowded, so why?
@@markr.1984 You are right about the poor quality of DAB. The UK started with a very low bitrate and that has delayed the switchover because people are not happy to buy (BAD) radios. Even Europe with a higher bitrate are seeing a low uptake. Yes the bands are not too crowded but they want the radio spectrum for mobile phone use 3G, 4G, 5G..... umpteenth G. Gen Z are not happy just making calls and texts they want web access to everything on their mobiles.
7:30 I believe the term is "loudness contour". It is designed to be the inverse function of the Fletcher / Munson curve analysis done in 1933. Great analysis! Keep up the good work Manuel. 73
👍 thanks
Agree 100%. If this was not restored to 'usefulness' it would be unused and thrown away. By the way, I'm a 60 (plus) man and I find it cool too (ha ha). At the end of the day, as you say, your radio, your decision. Your channel too. I've stopped engaging with commenters who say my little 8x6 workshop is just a plaything. Sticks and stones mate. All the best.
Thanks. Just had a look at your workshop video. Very impressive 👍
@@electronicsoldandnew Wow, thanks mate. I think I need to get out more (ha ha). All the best.
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Love the Rant ! Love your work ! Love Bluetooth !
Keep it up Manuel !😂
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Good video. Life is too short trying to please everyone. Do what you enjoy and live life fully, without regrets.
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I honestly do believe that if bluetooth was available at the time, all the major brands would have added it to their top of the line radios. Like fm when it was first available and quadrophonic audio.
If you look at the back of any modern receiver amplifier you can see the proof of this audio evolution with inputs vary from din sockets true tulip to digital in, hdmi and build in WiFi and bluetooth
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Totally agree with you. The beautiful radios you restore should be used and adding Bluetooth gives the radio added functionality.
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Just block the naysayers. It is your channel and you do what you like.
I’ve never blocked anyone (except advertising bots), and have only deleted a couple of comments that used language that I considered inappropriate. But you’re right: my channel and I will continue to have fun with it 😊
Greetings from the UK Manuel. I "restore" if that's the right word 70s & 80s audio kit, mostly radios, cassette decks (portable and hifi) and boomboxes. It is good to see the same attitude as I have to restoration. A piece of kit is only original once. Once you replace anything, then it isn't any more. I accept that. I want to be able to use my kit on a daily basis, if that means it is not "original" then so be it. The whole point of any kit is to be able to use it as the manufacturer intended, if you can't and it becomes a shelf queen, then I really do fail to see the point.
There seems to be a very similar attitude with the cassette deck restoration guys, there mostly seems to be no problem with replacing capacitors in the audio and dolby circuits for film caps to improve the frequency responses. Had these capacitor technologies been available 40 or 50 years ago, I think the high end manufactures would have used them, that's what engineering is about.
To have a practical and useable piece of kit on the daily is what I want to have, just like yourself.
Interesting to see your insights and techniques on valve kit, as I'm mostly solid state.
👍 I do solid state too, but tubes fascinate me. Probably because I missed them when I started varsity in the 80s.
Very interesting 💯
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It is your radio. Do with it as you please. I get very tired of the purist critics and those whose way is the only way.
Having said that - it is just my opinion and it invites no argument. I am 80 years old and have been fixing radios for more than 65 of those years. So there.
Yours is one of the few YT channels I enjoy following. I am picky.
👍 I’m a firm proponent of the “agree to disagree” moto, so I have no issues with divergent opinions, and will respect then as long as they respect mine 😊
Awaiting your next (anti-sacrilege) project, bluetooth to am / fm modulator, ho, ho.
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Personally I think most of us are just enjoying and sharing our hobby with like-minded people. If you want to restore, repair or fit blue tooth it's your call. I have to admit though that when I visit these trendy stalls where people upcycle things, I do twitch when I see a lamp sticking out of the top of what would have been a good restore or repair project.
Yes, I personally don’t find that too appealing 😊
FFS. It's your radio, you can do what you like with it! If you don't want bluetooth don't install it. If you do, do so. If you want to take it to the extreme then maybe you should not use it at all because the broadcast you are receiving is very likley not being sent on 1956 broadcast technology and so would be a sin to even allow to come anywhere near the radio! Anyway, great video. Loved the sweep experiment. Fascinating as always!
I didn’t think about the blasphemy of receiving modern transmissions🤔 it’s a very good point😀
it would be good to see the THD as you get close to the clipping. It's quite hard to see where the distortion starts to rise just by looking at a sinewave.
I really need to get a thd meter 😊
Your channel, your way! 👍 I'm a permanent viewer for as long as these old bones last! 🦴
I wouldn't add Bluetooth myself, but I respect your decision. 😀
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There's a lot of places now where you're lucky to pick up any AM stations . So if its going to just sit on a shelf whats the point restoring them .Maybe just clean the case. I've been doing what you've done here for ages ,only mine have FM radio .Usb and Bluetooth . I've also done the mod on some classic cars that only had an AM radio .So with this option you keep originality but can listen to something other than horse racing or the ABC. Adding the mod adds value to the radio and makes it useful . I hardly listen to FM radio and I'm not a fan of Bluetooth but I like the Usb side for playing the music I want to play . The other option is to use an AM transmitter and have the FM , Usb and Bluetooth unit plugged into that . Then you can have all your AM radios working at the same time .
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You can please some of the people all of the time, and all of the people some of the time, but you can't please all of the people all of the time. Manuel, It's your hobby do it your way.
👍 A very pertinent quote 😊 I wonder if Mr. Lincoln had a UA-cam channel 😊
I like your rules
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Thanks
Thank you
Manuel, Your'e most welcome an absolutely fantastic channel so interesting and you're are a great presenter, i've learn't so much in a short space of time. My bluetooth boards have arrived and it won't be long before my first radio, a modest GEC 5243 gets one. I'm totally 100% with you on the bluetooth debate and when I install it, it will be in a manner that it can be removed leaving no trace!
@richardkingsley-smith6202: 👍 Good luck with the GEC.
Let’s not be so self-centered regarding BT. Let’s think about the radio! My 1950’s restorations all smile when they realize that Louis Armstrong, Ella Fitzgerald, Frank Sinatra and Nat King Cole are once again coming out of their 65 yo speakers! They love BT!
Perfect sound for these radios. Who cares is they come via a smartphone 😊
I think I prefer your "My radio, my choice". It 35 mins shorter 🙂
If the purists don't like it, then they can by these radios and exercise their choice.
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I notice here that this person who describes the installation of Bluetooth as sacrilege is probably pretty much alone with his opinion.
Well, he will probably have to get used to your actions and behavior ;-)
Or stop watching these videos 😀 Actually I can understand the argument… I don’t agree with it, but can respect that point of view. I think everyone has the right to their opinion, and have had some interesting discussions on the subject, but I draw the line when disrespect steps in.
If he wants to add BT to these radios, big hairy deal, I don't have an opinion on that. But I'd never do it. I don't even use Bluetooth with modern devices much, so why would I want to pump BT into an old radio? I only use BT to get sound from my phone to my wireless ear buds. Other than that...Meh!! If I had newer desktop and laptop PCs I'd probably use BT for those but they're all too old in my house, they don't have BT. So I have to use wired headsets. Not much of a bother either, to be honest.
There is no point on trying to explain such things, those arent some kids... If they cant figure it out then your are just talking to a wall. I would ad a remote controled led strip and move on with it.
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