Trying to FIX: 2x Blaupunkt DAB Radios - No Audio

[@daveharkin4731]

I'm like you Vince, I absolutely love fixing and diagnosing electronics. It's a good buzz when you get something to work. Remember next time when there is no audio, always go for the audio output stage (amplifier circuitry)it's usually in two sections, preamplifier and the main output amplifier, but in your case, it's an all in one package (integrated circuit)and that makes them run hotter so they're more prone to failure, you could put a little heatsink on them and that would make them last longer. Glad to hear you've got an oscilloscope now you can learn all about signal tracing, and that's great fun.

[@Mymatevince]

Thanks Dave, I ordered up a pack of 30 heat sinks for a few £ and some thermal adhesive. I will stick one on in the revisit video. Thanks for the idea :-)

[@rogermoody2660]

Carlson can sort this out!

[@Retro_andy_1977]

Nothing wrong with being careful Vince.when I used to do videos I used to be the same.but I had very few subscribers and you have a lot more at stake.the videos are still great whatever music you get to play 👍

[@CodyBarnette]

Would LOVE to see a revisit! Keep up the awesome work Vince!

[@scottashcroft7001]

The 8002B appears to be a clone of the National Semiconductor (now TI) LM4871. If you look at the original data sheet you'll see that the SOIC packaged varsion was only rated for driving 1.5W into 8 ohm loads. There is a special version in a WSON package which can do 2.5W into 4 ohms. I expect the 8002Bs are just being killed by overloading and replacing them might get things working again but only temporarily. Replacing the speaker with an 8 ohm one might help.

[@Mymatevince]

Thanks for the info and advice Scott :-)

[@technixbul]

No, here both channels are in bridge mode for internal speaker BTL = 2.65W@4 ohms and stereo for headphones, but not both in the same time

[@jetsonian]

To add to this, TI states that for a 3W 4Ohm load, you should be using an LM4871LD, which they don't seem to make in an SOIC-8 package like the 8002b. They do make it in a 4x4 8-WSON package, with the same pinout, but I don't think that will fit where you need it. Datasheet: www.ti.com/lit/ds/symlink/lm4871.pdf

[@Scotty_in_Ohio]

my OCD tells me I need a follow up video. I think as you do that the reason why the serial numbers are gone is they've went through a recycle center where they promised to destroy the items and responsibly dispose of the parts - that could have been done but the 3rd buyer offered them up for sale on auction. Should be on the up and up provided that the last to buy them doesn't place them in the landfill. Great video (as always)!

[@joshpopkie3524]

Hey Vince, I would love to see a revisit video. The parts I've ordered from China in the past were a mixed bag of relabelled transistors that were somewhat compatible. All the best in the New Year!

[@simonebille1168]

Love your videos, story tells that the tiny chip usually blow up when people send the sound in distorsion (loud volume and crackling from the speaker), may be useful add a little heatsink on the top of them

[@joshm264]

Amtech is the real brand, and is what most professionals use. Haven't heard of Vaseline as flux, but you should be able to smell the difference between the two. Interesting fault find as always!

[@xenisstylianou5843]

Hi Vince . First time commecting on any You Tube Video. Your enthusiasm reminds me of myself , starting off in the electronics repair trade many years ago. Regarding flux , yes stay away from EBAY , as it's a bit of a lottery . I normally buy from Amtech direct in the states . Only way to be sure it's not a fake product . Cannot find any reputable agents in the UK .

[@AcornElectron]

Nice relaxing way to spend a Thursday evening. Keep up the good work fella!

[@MrMaxeemum]

I suspect you know more than you let on, don't get me wrong I love your videos, especially your diagnostic reasoning. What ever keep it up, I like.

[@spooktasticaparanormal]

What a fantastic fix Vince. And thank you for recycling which helps save the environment. I restore vintage multitrack recorders to keep the analogue vibe alive. Kind regards. Paul.

[@zerocool278]

Happy new year Vince, Hope 2020 is a great year for you all and may all your shorts be quick to find.

[@digitalspaceman]

Thanks , I learned really a lot from your video and sort out my radio , now I know how to fix it . Subscribed 😊

[@Fifury161]

36:25 - there's that enthusiasm! Love it, keep them coming!

[@lazzarusbr]

I ENJOY TOO! AND WE NOT NEED SHORT VÍDEOS WE NEED INFORMATION! AND YOU NOT HIDE ANY, THIS IS SO NICE ON YOUR VIDEOS, YOU SHOWS ALL no shame in failures, as all failures is a valuable lessons, you change from a nintendo swhitch killer to a nintendo swhich fixer! ( you have learned from your own mistakes

[@TheLOD2010]

The little Winbond Chip is in a cercuit like this most times a EEPROM for Firmware and the big Chip is kind of a micro which loads this firmware.

[@coondogtheman]

That green board with the chips is likely the DAB decoding board to process the DAB signals and send the audio to the amp. I wonder if it's possible to grab the DAB audio stream off one of these radios and put it to a file.

[@adamdavies163]

I notice quite a few people suggesting a higher impedance speaker. Yes this will load the amplifier less but it will also be quieter. If you wanted to experiment with increasing impedance why not stick a low value approx 2 - 4 ohm 1 watt resistor in series with the existing speaker? Personally I think just turn the volume down and don't run the thing at MAX.

[@MarkPentler]

Omg I THINK I almost bid on these and had the same idea and it was all down to your videos. Bollocks.

[@ovalwingnut]

You are a useful human and a credit to mankind in general. Cheers!

[@darkangelva3449]

excellent tutorial, you explain the processes very well

[@catslefteyecraftscat6048]

LOVE YOUR VIDEOS WITH THE FACE FORWARDING PARTS

[@gertdekock2216]

Happy new year and almost 500k subs well done.

[@rylen4]

Hello, i saw you video on the switch and i was wondering, i have an old ds lite that i tried to turn on recently. It turned on and i set it up. It asked me to restart and that was the last time it turned on. It looks like its charging and turning on but nothing on the screen. Any suggestions?

[@adrianpearce5214]

Great job vince love your videos keep up the great work your doing

[@markpotter6186]

It's the impedance of the speaker that determines the load on the amplifier, not its capacity. I.e. 4-ohm speaker determines the load, a 4-watt speaker determines the amount of power it'll take before it either flies apart, or the voice coil gets dangerously hot (it's usually the voice coil thing). The two specs are linked as far as an amplifier is concerned, but that relationship is beyond the scope of this paragraph. The chip is probably overheating.

[@mahlapropyzm9180]

I use Mechanic UV-80 flus. It is pretty good but mine came in like a shoe polish tin, not a syringe. Apply with a cocktail stick. Alternatively make your own high concentration rosin/IPA solution like Sorin from Electronics Repair School. Apparently adding a small percentage of glycerine makes it more gelatinous, but I haven't tried that.

[@danielcollin4012]

I would like to see the revisit as well. Always nice to see something fully fixed up :)

[@carolvile5584]

Mine is from Sainsbury's too. The one that isn't turning on now, it's a lovely looking thing.

[@jocockcroft1928]

Have a look at Farnells website for the flux or go direct to Amtech and order, then you know it's genuine. Great video as usual Vince 👍😁

[@GadgetUK164]

Fantastic job =D Always interesting to watch you find the cause of a failure! I suspect (as you thought) that the speaker is ultimately why this is probably a common failure point on these. It might be OK if the volume is low for the most part - but how many people crank the volume up to max for their fav song - it might not be able to sustain max volume for long periods of time. You could test how hot the IC gets when on full volume for a few mins in the next video maybe?

[@Mymatevince]

Good idea Chris. I will definitely revisit this. I can use that temp probe on the multi meter to show it possibly heating up. I also ordered some cheapo heat sinks and thermal adhesive for a few £. I will stick one on to see if it makes it last longer :-)

[@shaunstewart4064]

Take a look on Amazon. There are listings for that particular flux. Love the videos.

[@nikkic36]

Love your enthusiasm vince

[@gatty76]

Love these videos, as another has said companies buy a licence to put the brand name on their product now. As for the pronunciation I understood it was blau as in plough.

[@cedley1969]

As a German speaker can confirm blau does rhyme with plough.

[@patrickmorrissey2271]

Nice job! Yeah, you're not being paranoid about KZbin.... You can't be paranoid enough, where they are concerned.... And as one of my Attorneys told me many years ago, "A little paranoia is NOT a bad thing...."

[@alanmurphy4402]

Would like to see the revisit vid,I have just today replaced the whole circuit board for exactly the same problem as yours,and it was my fault as I used a universal charger and forgot to check the output voltage so it blew the board at 12v,should have been 6v,stupid me!! Love your videos btw.

[@theovanrooijen2405]

Louis Rossmann sales the flux. Real deal. Great KZbin guy. Just like you. Btw he is just like you a self made/ learned repairs man.

[@technixbul]

You can't find the GND on speaker/headphones because it is bridge mode output power amp (BTL) for each channel and it was shown on the datasheet => BTL@4 Ohms - 2.65W for speaker. The speaker is perfect for this amp, just cheap Chinese stuff failed for no reason. Never hasitate to do a revisit untill its fixed, many people (mostly newcomers) with limited knowledge look for a specific details about some process and for them this is a descent knowledge base. This is more like psychological state rather than knowledge thirst or maybe both, just like relieving good feelings from fixing something. It make you some kind ... honest and trustworthy to the audience. Winbound is famous with their memory chips, in this case it is flash EEPROM memory for BIOS and firmware of the DAB

[@Asriazh]

Watts on a speaker are passive. It means that you can put up to 3W into the speakers and they're supposed to be able to handle that. Happy new year! ^o^/

[@KorAllRBare]

***ADDENDUM*** An 8 ohm speaker should ensure the Audio chip wont fry, mind you you will lose some volume or loudness.. you could also insert a 1 or 2 ohm resistor in series feeding the audio to the speaket through it if you dont have an 8 ohm speaker..

[@nathanmead140]

Or change the speaker to the right one + put copper heatsinks and thermal paste on the chips.

[@hadibq]

Vince, I've had this IC going faulty on one of those cheap red FM little radios with usb and sdcard mp3 player and it went silent once. I started poking and shorting to the positive randomly some of its leads and noticed the pin 6 to + used to revive it. not sure why it worked but it did.

[@andersmmvfc.8376]

Is changing the speaker not the wrong way of looking at it? Changing to a more resistant chip would be better or do you need to change more components for that?

[@PlanetRuncorn]

Top Tip, to fix the Aerial , find a screw/bolt that fits , either using a hacksaw put a small groove across the top where the screw fits in , or drill a small hole, flux everything up and insert the screw and then solder it in making sure the solder runs through the hole or groove and sticks to the bolt on the inside .. it will never come out and make a really good repair

[@Catstorm99]

The rating of the speaker 3 Watts and 4 Ohms. The speaker would not overload the amp as it is presenting itself to the amplifier as a 4 Ohms Load, it can just take more power without burning out its own speaker coil. Maybe what happened is someone used the headphone jack with shorted out headphones which destroyed the amp. You would think some better protection circuit would be used but I guess they are built to a price.

[@guillermojavieririgoin3001]

The 3W label on the speaker indicates the maximum power supported by it.

[@MirceaD28]

The audio connector is also a switch. Besides having the pins for the Jack there is also a switch that commutes from speaker (amplified) to headphones (not amplified) that is why you have so many pins. If the switch inside is in neutral position, both headphone or speaker will work. That is one possible fault.

[@DAVIDGREGORYKERR]

That large chip is a DSP processor that down-converts and demodulates DAB and FM, Could you throw together an output amplifier to replace that 8002 on a piece of Veroboard using a NE555 timer chip as a Class D amplifier.

[@wasserman63]

Hi vince i just looked at the data sheet i was rigth it says 3.3 watt under continous load

[@davefoskett2418]

Hi Vince, have watched a few of your videos and i like the content. I recently purchased a faulty Bush DAB BD1709 radio from eBay for about £7 with the sole objective of fixing it. It was listed as having no power. I have already figured out that one of the capacitors had blown inside and left a lot of the fluffy insulation inside. I have cleaned that mess up then to discover that a very very tiny smd chip (i think it had 5 pins but not sure, and its probably about 2mm square) im assuming was connected next to that capacitor, had blown also. But because the tiny chip is so small and burnt I am unable to read the code on it. At an educated guess what would you think the chip would be? I am unable to find any schematics for it and I think it was an Argos product. Thanks in advance for any small advice.

[@aztockdog]

Def revisit! Great videos- I got hooked since the DIY bar top arcade! Nice job and HNY2020

[@Tangobaldy]

49.29 so agree. I have to be so careful filming in public. Always some music in background. Live streamers are now mirror image video to blank out company names too. Then you see channels on KZbin making heaps cash from talking and showing other channels of TV shows. It's bad that genuine KZbinrs get spanked. My audio gets me demonetised because it sounds like gunshots. Yep it's auto flagged.

[@Spoodernwar]

Can you tell me how to fix my switch? My joycons are broken and when i use them then whenever i play a game or anything my right joycon goes to the bottom left and my left goes straight forward (im not saying it is pushed in that direction).

[@andrewhill4226]

Great video. If I were you, I would have checked for maybe a 5watts chip upgrade with the same pinouts ? Maybe the volume just overloads the chip if it's 3 watts maximum. Might be a little dearer, but the fault might be a long term fix ?

[@0xbenedikt]

The chip is a Kino 4 from Frontier Silicon - a british company. I have quite a bit of background with these. The Winbond chip holds the firmware. Frontier Silicon is /the/ vendor for DAB+ radio chipsets, some of them running Linux. They don't sell radios themselves. The firmware quality is argueably very poor, so are the translations. Most radios with DAB+ and internet radios are just using their hardware design and firmware and put their own label on. So you have a hard time finding a radio that is not using the Frontier Silicon chipset. The Sony radios, as well as the Grundig ones do AFAIK not use Frontier Silicon IP.

[@nimerjosetorresquevedo3153]

Happy new year vince, good job

[@89ludeawakening1]

The people that say you're paranoid about getting copyright claimed obviously don't have a channel with monetized videos. You can replace the 8002B amp chip with the LM4871 and it shouldn't have that issue again. But the 8002A and 8002B chips are still normally pretty reliable. Sainsbury's Supermarkets might have gotten a bad batch of the chips.

[@speedwaynutt]

Gotta love Vince. His fix it videos are so satisfying to watch. Really hope this video don't get copyright struck for the linkin park (rip chester) in the end at 45:34 glad to hear it though such a great song.

[@laurigardner6227]

Hi Vince. I would love to see a revisit.

[@jum2537]

Can you please Tell me which Song this is in the First seconds of your Video? Thank you 😃

[@codebeat4192]

Blaupunkt, yeah right haha. Have two Tesco DAB radios (no DAB, only FM worked), look very similar inside. Also these models are slightly different inside. I think they use what is available and cheap. Very hackable devices especially the screen and the buttons. Put a raspberry Pi in it because I was unable to fix it. The 'bluetooth thing' is the processor + DAB/FM integrated solution and to get a datasheet of the thing you need a license. That was the reason my repair halted.

[@iian0]

Really enjoyed this one.. Another great fix. Thanks for the video...

[@superspedboy0076]

well done as always man. I wanted to let you know ive started buy faulty items and im going to repair them myself just like you! thank you! any pointers?

[@jasejj]

BTW Vince you can get 20 of the ICs for 47p delivered on AliExpress. I wonder if running two in parallel would result in a more reliable radio?

[@etiennevanharen3893]

Lovely fix on these, had a great laugh when you wiggled the antenna while I was watching at the loose areal wire. Good stuff.

[@waderyun.war00034]

If the speaker was 6 or 8 ohms it would stress the amplifier less. The wattage doesn't matter as much as the impedance.

[@adamdavies163]

If the unit has been run at full volume and signal has been clipping (distorted) for any length of time, that is what will kill the chip. This could be more likely (believe it not) if the batteries are getting low as the amplifier will clip at a lower level.

[@k3nny848]

Hi Vince, regarding your request about tack Flux, RS components are a supplier to the electronics industry in the UK, and they have Chipquick no clean tack flux available in large 30cc syringes, might be worth a look. I work in electronics manufacturing myself and our company uses this supplier for many items 👍

[@Mymatevince]

Thanks Kenny, that is the exact one that I ordered up :-)

[@KentuckyRanger]

Speaker impedance is the only thing that matters. A speaker that's rated for 3 watts, means that's how much power the speaker coil itself can safely take. A 3 Watt speaker draws no less or more power from an amplifier than a 2 Watt, nor one rated for 50 Watts. I'd say the 3 Ohm impedance is what's killing this little amplifier chip. A 6~8 Ohm speaker would make this work a lot better, and more reliably. It's funny how speaker power ratings work. I remember Altec Lansing speakers used to be rated at 50 Watts, but could handle well into the hundreds of Watts. In fact, I used to have a pair of Voice Of The Theater speakers hooked up to a 1,000 Watt amplifier, LOL!

[@Mymatevince]

Thanks for the explanation Kentucky :-)

[@KentuckyRanger]

@Joe T Awesome points! Many factors went in to these chips failing. It could also come down to just a bad batch of chips. The speaker impedance matches what the chip is rated for, so I'd lean towards the chips being defective. What would be interesting to see is long term testing with new chips, to see if a new replacement chip would permanently solve the problem.

[@stefanmarinescu5086]

Awesome! Watched part 1 as well. Happy New year!

[@nicklea1988]

What rework station do you use?

[@MizuhoChan]

Happy new year Vince!

[@robtitheridge9708]

i think the reason for the chip faiing so often is that people use them at full volume a lot of the time and there is no heat sink.. also if the out put of an amp is say 3 watts the speaker should be rated higher to stop distortion. a great video and like you said a real fault finding and fix

[@Jeff121456]

A bridge-tied load (BTL), also known as bridged transformerless and bridged mono, is an output configuration for audio amplifiers , a form of impedance bridging used mainly in professional audio & car applications.

[@AnonymousRepair]

Hi , I was just reading the data sheet of that Power amplifier ic , It stats that @5V in to 4 ohm speaker it should be 2.65W which if fine, The speaker is rated for 3W which means it can handle maximum of 3W , always better to under drive the speaker max Watts. I am just wondering if they are using 5V to the IC or 6V If they used 6V to power the ic this will over dive the speaker and cause the chip to get hot and die prematurely. great video :)

[@Mymatevince]

Thanks Anonymous, I didn't measure any voltage going into this chip but once the replacement arrives I will do a revisit. I will feel (or test) the chip to see if it gets hot on full volume and stick a heatsink on it. If I remember I will try and measure the input voltage :-)

[@AnonymousRepair]

Looking foward to the revisit :)

[@josephnealeUKscratchcards]

Awesome video as always 👍🏻❤️

[@tomaszski9818]

Yes I would like to see a short revisit video. What about that Playstation with broken WiFi card ? Is this one coming soon?

[@ryansteve8739]

Will you be continuing the Sony discman series?

[@andersmmvfc.8376]

Ofc. I wanna see if China chips works and if there is a function in the top bit of the radio Antenna. Nice and entertaining as usal! Thank you.

[@leebryant2095]

Great video can’t wait to see what all you fix this year . Your videos are great .

[@ford1546]

in the UK. I have heard that some channels are broadcast in mono! is it true? dab doesn't have to be bad but channels are so very compressed to get as many channels as possible. In Norway we have dab- +

[@rossthompson1635]

Yes, it is true that some UK DAB channels are mono, such as BBC 5 Live. We do have some DAB+ but not on the BBC multiplex, mostly stations are still in MPEG L2. I think this is because the UK started pushing DAB quite early and so there are still many old DAB radios that don't decode DAB+.

[@ford1546]

In Norway we had DAB but then we suddenly switched to DAB +. DAB + can be compressed more without more sound loss due to another codec. But instead of giving Norway better sound, they pressed even more channels into the same DAB + network. we consumers had to buy new radio while the channels only needed software updating. Norway took existing audio signal to run in through the DAB + transmitter. So the audio signal quality from the radio stations is not upgraded.

[@rossthompson1635]

@@ford1546 Thank you, yes, DAB+ channels can broadcast in what seem to be astonishingly low bit rates for stereo music, such as 32kbps. There will always be a temptation to cram more channels in at lower rates sadly. Am I correct in thinking that FM broadcasting has been switched off in Norway? We still have it here in the UK, it was supposed to be turned off in 2018 but that was postponed with no new date set.

[@ford1546]

@@rossthompson1635 FM network is not completely turned off in Norway. It will take several years before it happens if it happens. Whether FM comes back or not has not been clarified in Norway. Synnevåg is the radio producer and journalist who has long been involved as a critic of Dab. Through a separate podcast, "Who turned off the light on FM?", And newspaper posts, Synnevåg has been heavily involved in turning off the FM network, which Norway was the only country to date in 2017. The DAB case has become a nightmare for the national channels Denmark, which in 2017 looked to follow Norway and wanted to switch off its FM network, changed its mind last year. They will now continue FM. Sweden, which also considered FM extinguishing, has decided to continue FM until at least 2047. In addition, a large number of countries, including the United Kingdom, Spain and Latvia, have in recent years decided not to copy Norway by switching off the FM network.

[@rossthompson1635]

@@ford1546 That is very interesting, thank you. I had not realised that FM was proving difficult to switch off in so many other places - not just in the UK.

[@adrianwilliams717]

They went bust in 2016. Their stuff was made in Germany till 2009. Then after they were bought out in 2009 from Bosch, all their stuff was made in China!!

[@MyRegardsToTheDodo]

Malaysia, actually. They had joint ventures in China and India, which still exist.

[@pauldavies6037]

@@MyRegardsToTheDodo Made in China on the back what a shame Another good company gone other companies just using their name but very poor quality

[@MyRegardsToTheDodo]

@@pauldavies6037 That's what happens when companies don't go with the time and get obsolete. Made in China isn't neccessarily a sign of bad quality though (I'd be more worried if it was Made in USA). Also Blaupunkt never was a high-end brand, or atleast hasn't been since the 1980s.

[@coooxd]

Your channel grew so much that you should consider doing sponsored videos/ making sponsor deals with different brands. It'd probably make you more money than the ad revenue. I could easily imagine something like a sponsored deal with iFixit or something like that.

[@CLC-1000]

Great part 2. Watched the first one and loved it straight away.

[@Mymatevince]

Thanks :-)

[@CLC-1000]

@@Mymatevince Anytime Vince.

[@R-E-D-A-C-T-E-D.]

I think vince should do an repair video with his son. like so vince can see

[@kriswillems5661]

You're getting pretty good at this. Do people buy these things second hand, or are you doing it for the video? These Blaupunkt DAB radios are just Chinese low quality/ low spec things - nothing like Blaupunkt once made.

[@SionynJones]

Yeah, its just a re-badge. The DAB module is pretty high quality but the audio amplifier speaker and power supply are typical of cheep rubbish from china.

[@Mymatevince]

Just purely for the video. It is starting to all build up now so I might off load it all at a car boot sale or something :-)

[@louie888888888]

Hi Just to say thank you for this content 5 stars .

[@johntingle303]

I’m not sure where you can get original amtech flux but I’m sure I heard sorin from electronics repair school once said that he had some original ran out and bought some cheap from eBay and he thought it was better to use!

[@jamesdougan8789]

louis rossmann sells that flux but he is in new york usa i think its about $20 usa if you dont want to buy in the usa andrew paul dose sell parts and flux as well he could have it i know he uses it ......... great video old mate vince cheers james D

[@Gassit]

I just checked and Louis lists it for $15.49. Anyone that's watched his KZbin channel knows he's trustworthy. KZbin kzbin.info/door/l2mFZoRqjw_ELax4Yisf6w Store store.rossmanngroup.com/soldering-diy/helpful-tools-extras/flux-soldering-tools.html Worth checking, can't be that much to post a tube of flux from the US.

[@cazerplaytv9224]

Please do a revisit video Vince when you get the new chips

[@PontiacMan20]

I’d love to see the revisit!

[@JimFortune]

You showed in one video that you were playing "Fur Elise" (Sorry, I don't have the right diacriticals) I was hoping you'd do that with each of the audio clips you play!

[@flappitty]

HI My Mate VINCE, just wanted to point out that the link to your eBay shop both on your about page here and on your website isn't working.

[@martinh4982]

I'd like to see a revisit video... and if you have some spares of the new chips, it would be interesting to see if you can cause the fault to occur. My guess is that whoever owned the two radios plugged something a bit beefier than a pair of headphones in that blew the chip.

[@gb7767]

I was thinking the same, the headphone jack is green and looks to be a similar size to the DC power jack. Your average punter is likely to jam the power supply into the visible connector on the back. That would definitely let the smoke pixies escape. Occam's razor, the simplest explanation is that people have done something dumb.

[@milsge]

hey i think the swap at around 12min dont work maybe by the fackt tat they have different software on the microcontroller for the different models

[@mypersonalbiblestudies]

Yay!!!! You bought an o'scope!

[@joshm264]

What time?

[@mypersonalbiblestudies]

@@joshm264 around 4:42 mark he mentioned buying a handheld scope.

[@clivehenry5750]

The rosin by sorin ..”the flux you’ve been looking for”

[@Jack-nb1zx]

The revisit would be great!

[@michaelturner4457]

The Frontier Silicon chip module is the DAB receiver.

[@CPUTests]

Winbond serial eprom for the DAB decoder chip thats the square FS larger one