Random prototype LED "thing" (surface mount)
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- Опубликовано: 14 фев 2019
- This is one of those spontaneous projects that just happened. I wanted to try a surface mount project with a new micro USB connector I'd ordered, and this illuminated coaster type thing is the result.
I chose to use 1206 surface mount components because they are a reasonable size to solder with an ordinary iron bit. It's actually quite straightforward to put together, although I did mess up a couple of solder joints slightly by not heating the component and pad simultaneously. But it was an easy fix to reflow them and a valuable lesson in proper surface mount soldering technique.
I like the way the light shines through from below, so I may consider getting some PCBs made with no solder resist and a black screen print for the logo. I've not decided the colours yet.
Here's a link to the connectors I bought from aliexpress.
www.aliexpress.com/item/100pc...
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
www.bigclive.com/coffee.htm
This also keeps the channel independent of RUclips's advertising algorithms allowing it to be a bit more dangerous and naughty. 
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I used to use 1206 parts too. But recently my doctor told me not to lift too heavy stuff. So I'm going with 0603 and 0402. :)
I used to hand solder SMDs a lot and became very good at it. Then I found solder paste and a hot air rework station and never looked back.
Watching the paste flow and seeing the meniscus pull the SMDs into position is fascinating.
It does look quite satisfying. Maybe one day I'll follow that route. I did reflow some of the resistors on the first prototype with my hot air pen to see them slide into position.
What you need is a temperature controlled hotplate. I made one from a £10 cooking hotplate, an £13 eBay temperature controller and a 4mm thick square of aluminium.
For smaller boards, and smaller chips, it works a treat. Just don't try doing a 144-pin QFP with it :-)
One day, I may even put up a video on doing it.
@@bigclivedotcom If you want to try reflow soldering, you don't need hot air station right now. If you have a board with one side populated and the other side completely flat, you may use electric iron. Fix the electric iron upside down (i.e. in vice), then lay the board at iron, turn it on and watch.
I am a rework technician and use rework machines. And watching the solder melt is satisfying every time... haha. Especially watching the BGA's reflow and sink lol
The closest I got to that was when I had to get a lot of heat into a large PCB with a lot of copper. It was shunting the heat away and nothing was melting. Eventually I put an iron in a vice and used the hot sole of the iron to heat it up. Worked fine but I'd be interested in making a proper one. Do a video and let us know.
If you want to find Clive in the airport in winter, watch out for the guy in shorts and t-shirt.
Yeah. He's the tall one. ;)
Incomplete description. He'll be the one fitting that description that's also disassembling something not meant to be taken apart, with his poundland screwdriver.
(how does his last so long btw? Mine started rusting after a few months :( )
@@simaorodrigues6285 rapid troubleshooting and repair skills is sometimes useful in
airport.
Once I had a few hours layother I spent about 5 min fixing a plug next to were I was sitting.
found out a few moments later I ended up with probably the only working plug in the terminal due to the shear amount of people homing in on that plug!
If you want to find him in general, just go to this address, it's highly likely you will find him there.
32 Strand Street, Douglas, Isle of Man IM1 2EN, Great Britain
@@JohnDoe-bd5sz It don't think, this information should be here.
You should try soldering the LEDs in upside down so they shine directly through the board...
Its got to be PINK solder resist!
Pink with *sparkles* would be excellent.
Can you make silk screen from glitter hot glue?
If Clive put the wrong grade of petrol into his car, would that make the engine pink?
Half Million CONGRATS B.C.
Should be a million!
@@comm744 fully agree!
@@comm744 It's better this way, since the community feels more connected. But I'm sure Clive wouldn't mind one of those Golden Play Buttons.
@@comm744 - Soon i suspect ;)
It was the introduction of symmetrical screen printed Clive that did it. Anyone else thinking we’ve found a new presenter?
The whole issue with those voting for Brexit and the issue with it's impending implementation is that people have been grossly miss informed about what it actually is. Probably the silliest aspect of it is that if the UK is in a position to leave and have that not have major implications it must have also been in a position to negotiate just about any terms it wants as being part of the EU. Issues like immigration which was Brexit voters primary reason will be barely affected by EU withdrawal. Issues like customs enforcement become more incumbent upon the UK while issues like the European single market which deserve legitimate scrutinize was always negotiable by the UK because their economy is enormous.
It was a silly thing to have a "leave or remain" vote, since that "leave" option was a bag full of cats no one was certain about anyway. It was brilliantly done by Brexiteers and pretty much fumbled by every Remainer politician (i.e. most in power) and msot of the media. Setting aside the obvious xenophobic reasons many people voted to leave, some wanted a Norwegian/Swiss style deal when voting leave (without having to pay as much as those countries), some wanted out of the EU in all ways and take power into their own hands again (those who think that Britain is still an empire), some voted leave just to slap the ruling politicians, without believing that "leave" would actually get the majority. So of those 52%, I'm sure you get 10 different answers about what "leave" meant to them. But instead of acknowledging the flawed premise of the vote (and the illegal (?) tampering by outside groups), UK politicians and Mrs. May in particular are going full steam ahead, trying to slam their head through a wall. I'm wondering what will "remain" of the UK in 5 or 10 years time, with the friction between the members already evident years ago now becoming more pronounced (Scotland and Northern Ireland in particular).
@@Gigator "It was brilliantly done by Brexiteers and pretty much fumbled by every Remainer politician (i.e. most in power)" This is an excellent point and a reminder that the new wave of populism around the world typically is a factor of the hubris of those currently in power. Further populism needs a focus and an educated base.
Leavers will oppose May even if that conflicts with their prior stated goals. Ultimately Leavers evaluate "something" changing in politics as better than nothing at all.
Congratulations on half a billion subscribers, Clive ;)
A "billion"? I know the UK uses the short scale, I didn't expect it to be THAT short, hahaha!
Thanks. Half a billion would make the comments section unmanageable. At 500K it's still got a personal touch.
I'm not sure we use the short scale here in the UK - the Americans certainly do. Anyhoo, Hi Mr Ilett, fancy meeting you here :)
@@lloydgarland4667 If you aren't regularly using the terms milliard, billiard, and trilliard, and if every step from million to billion to trillion and so on only adds three zeros instead of six, then congratulations, you're using the short scale.
500,000 (500k) is half a MILLION not half a BILLION! The world is full of morons!
Long time lurker here, congratulations on 500k Clive!! Thoroughly deserved!! Thank you for keeping us edutained and inspired 👍🏻
Fabulous that you have popularised making & learning about the tech of our age in some such an eccentric & loveable way. Thanks for sharing!
Love these videos when Clive is just building stuff. Nice and relaxing
Congrats from your friends, my family and me, from across the pond on the 500k!
I love Clive's prototype boards. They remind me of the boards you might find in a 1970s Neve console.
I love watching your videos while Soldering!!!
"the carpet is full of surface mount components" - suddenly 'Honey i shrunk the kids' popped into my head, what a remake based on Clive's carpet would tell lol,,,
And so Clive's carpet became self aware, started it's own channel and called itself...SKYNET... Then a terminator travels back in time to kill Clive and stop the rise of the carpets, only to be foiled by a dry solder joint rendering him useless... Clive then uses the terminator as a coffee table with warm white up lighters, and lives happily ever after...
Have you read Terry Pratchett's 'carpet people'. .?
Clive, I look forward to every one of your videos. You have a really varied content, yet all is very interesting. I enjoy watching you build cheap kids, and new designs of your own. The best part is your commentary and your stories told during those kit assemblies. We all learn from your experiences.
Congratulations Big Clive! Well done for the passing the 1/2 Million mark - you worked for it; you made it; YOU DESERVE IT.
Thank you for all you do.
The day I run out of 60/40 solder, and can no longer get it, is the day my soldering iron will become forever cold. Great channel Big Clive.
Your projects are awesome for their simplicity and audacity. Two thumbs up.
I warm the PCB, then spread flux over the surface of the PCB, then a hot air gun and fin solder runs along the tracks like they are running after coil bars, lol. A quick wipe and Viola! You are ready to lay down components. Been doing this for the past forty years and never a fail.
Awesome video, love these longer ones while you tell stories very entertaining and educational. Thanks for posting .
Hi Clive you really deserve this milestone having made so many interesting videos for us to see.
48 components fitted in one video, no whinging and not a bit of Bluetac in sight, a pleasure to watch.
Congrats Clive. You deserve it. Many more to come!
Tip from mikeselectricstuff:
Put the components on a sheet of paper and tap the paper once you've used all the rightside up parts and the upside down ones will flip over
I'll give that a go.
@@bigclivedotcom Here's that video in question: v=pdGSFc7VjBE
@@Okurka. I don't trust YT's overly sensitive censorship bots.
@@Anvilshock They don't censor links to themselves. Using those links gives them one more go at providing you with an ad.
@Undefined Lastname For really tiny parts (0201) I use CA glue to attach a small screwdriver blade as a handle. Soldering makes the glue brittle, I just break away the blade after soldering.
Stopped ten minutes in to go order some ceramic tweezers. Didn’t know these existed. Thanks, Clive! 👍
I love this man. Been watching him since
I love this design Big Clive !
I popped into our local Poundland as a result of your 'recommendation' of their powerbank. It's excellent to run my H1 as it stays alive even with a minimal current draw.
I use to love making PCB's when I was a technician in a school. I used to make up the design in a program by Adobe. I then printed it on a postscript laser printer to a clear film. Then exposing the boards to a bright light on presensitised PCB board. Then a quick wash and an etch.
I still come back to your site Clive.
To me it's fascination and meditation in one.
Congrats on the milestone! Also, love these videos where you do kits and projects.
Well done, Clive! You hit the half-million mark!
I always thoroughly enjoy your videos and commentary. You’re funny and educational, and I really like the, “let’s be smart about it, but let’s bang a good thing together and refine it rather than eternally-plan a great thing.”
I would encourage anyone who has been reluctant to work with surface mount to give it a try. With just a small amount of practice, it's not hard at all. It's actually easier than through-hole in some ways. I have shaky hands and lousy eyesight, but if I keep my hands on the table and use a magnifier, I can deal with components down to 0603 and ICs with 0.4mm pin pitch. I won't say _anyone_ can do it, but if I can, your odds are pretty good.
Congrats, Clive, on taking the surface mount plunge, and on the 500K subs!
Congratulations Clive, 500,000... wow, well done. Keep doin what you're doin
congrats! 500k is awesome! more random stuff please, this is great! =)
i'd buy this as a kit, but then i'd have to buy a soldering iron too. to be honest i mostly watch these just to listen to clive's soothing voice (and to have my opinions about the proper temperature of rooms reaffirmed).
501K reasons why this is such an entertaining channel, Clive. Very well done!
I've been buying from Bright Components, originally from their Ebay shop then directly, since my interest in Electronics. Their range of components is quite small but their prices are excellent and they have a very low despatch charge that is the same regardless of the size of your order. They also give out 10% discount codes to repeat buyers.
Congratulations on 500K!
Congratulations on the Subs Clive. I enjoy all your videos, keep up the good work.
Congratulations on reaching .5 million, Clive!! As for the buttered toast thing- I finally realized that when I drop the toast and it lands butter side down that I was buttering the wrong side of the toast!
Well done, Clive. GMTA. I worked out exactly the same soldering technique around 15 years ago. Welcome to the SMD club! Even more years ago, I worked for a company that bought one of the very first "pick & place" machines. Unfortunately, it was the PCB that moved - not the component placement arm. Consequently, it quickly got named "The Gritter" as it threw parts everywhere!
Back around 1980 or so, my buddy and I both built what we called an "ATMCTU". Anything The Mind Can Think Up. Basically a randomly-arranged array of different-coloured LEDs, each driven by a gate-based flasher circuit, with slightly different values, producing a kind of random flasher effect. We had originally seen something like that at a modern art gallery, but based on Neon flashers. I don't know where mine went. It was built on perf-board, hand-wired, etc, etc.
Watching Big Clive work on a project is a lot like watching Bob Ross paint. Very calm and zen-like. I quite enjoy it.
I KNEW he reminded me of someone!!! LOL
Congrats on 500K, cool light :)
Love your vids! Congrats on 500K!
I hope your channel hits 1 million before the end of the year!
All your content is great.
EVERYONE loves BC p'cause... the way he talks... Oh so soothing ❤️
Good to see you joining the SMT team, Clive. I jumped in last year and found that using solder paste and hot-air reflow made it a cinch. You don't even need one of those templates for something like you are doing. Surface tension pulls everything into place.
With the solder-resist, you could leave areas for the light to come through and use whatever colour you like.
Looks great. The technology is amazing that you can do this sort of thing at home.Thought you were going to build the ultimate COB light for my pepper plants. ThankQ. TkEZ
I'm not sure about on the Isle of Man but certainly in mainland UK 60/40 leaded solder is still widely available to the Hobbyist. The Range stock it (2x17g tubes for £1.49 or 1x100g reel for £8.99).
With regard to solder mask, consider leaving a gap around each LED and then any colour will shine through - see Brian Lough's PCB3 video as an example of this technique in action.
All the suppliers with exception of Rapid are selling. Just checked with JPR Electronics, Farnell, RS Components and there are still selling it as is CPC.
Shame because Rapid was probably one of the best value for money out there.
Congrats on hitting 500K!
Project rambles like this are great, by the way.
You can always cut out squares in the solder mask layer under the LEDs to let the light shine through, or even put holes there and mount the LEDs upside down (or use specifically designed downward lighting SMD LEDs)
i have learn so much under this man video, so far my knowledge has increase by 40% , thank you again big clive
Great video for SMD!
Congtrats on 500k BC, been waiting for you to do SMD for ages
Great video Clive
I have some ceramic tipped tweezers a lot like those. They're awesome.
Congrats on 500k subs, by the way!
Great videos Clive. Keep up the good work, mate.
The pick up and drop technique is industry standard, well done.
Congratulations Clive on the half mil,
Awsome channel,
What fun, nice job mate!
Clive there’s a reason you see me looking through a scope in my picture. Even those little things are so nice to solder under it.
Congrats on half a mill Clive! And I was surprised and delighted when you mentioned Eric O of SMA! Fancy my favourite electronics channel also being a fan of my favourite automotive channel 😀
It's really not up to Chinese sellers to give HMRC (or any other country's customs) "their cut of VAT". In fact, Chinese sellers _can't_ charge British / EU VAT to begin with. It's up to customs to intercept the packages, determine the applicable taxes (generally based on declared value - but they can open them), and charge those to the buyer. Even if the declared value is fake, they'll go after the buyer, not the seller (because they can make the buyer pay a fine; they have no jurisdiction over someone in China).
I think HMRC are trying to get the VAT added at source.
Unless the seller is in the UK, they can't. That's what customs is for - to apply local taxes to stuff coming from abroad (whose seller is not subject to the UK's tax legislation).
Yes, they can definitely get eBay / PayPal to do it, assuming eBay is registered in the UK (and since they have a .co.uk site, they probably are). But that wouldn't lead to "targetting" individual sellers. Sellers outside the EU have neither the responsibility nor the right to charge EU taxes.
False customs declarations are from the seller, not the buyer.
Lost count of the amount of jiffy bags I got from China that were marked as 'gifts'.
Also, a lot of these suppliers have warehouses in the UK and they're not charging VAT. A legit UK supplier hasn't got a chance in hell of competing with them.
In UK consumer sales tax (VAT) is invoiced at source, so down to tax dodgers like amizone who register outside of UK to avoid many tax issues, along with Non Dom registered multi millionaires. All a bit of a mess.
Very cool LED thing and congratulations on half a bazillion subscribers Clive! Well done and weller done!
I always learn something watching Clive . What more could you want .
Coincidentally, I just did my own first time SMD project after 45 years of thru-hole component building. Built an active antenna for my shortwave receivers. I found it a bloody challenge for someone whose eyes now require a magnifier just to focus on the tiny components. Pings went everywhere. 0805 seems to be my limit. You may have fat fingers but I envy your ability to grab components and solder in one hand and apply a hot iron with the other with no clamping device in between. Mine tend to cramp in such positions. Finger dexterity is one of those things we take for granted, until we lose it to the medicines of life and the ravages of time.
Really came out nice! I want to do one now.
Congrats on half a million!
Grats on 501K!
I'm trying to imagine this coaster with rainbow LED's. That must look really trippy in the dark!
Congratulations BigClive! I known you at around 120k subs. You well deserve your half a million!
Congratulations Mr Clive, you've earned every single sub you have.
We don't care how long your videos go on for. Keep up the good work.
I work monday-thursday, 10 hour days. It's really nice getting a consistent 3 day weekend, and we also get a good number of paid vacations as well. I work in a factory, where we make handmade snowboards. It's super awesome.
Nice to see the 500k..........
Congrats on the 500,000 subs! Your channel is very enlightening and entertaining. I have spent many hours watching..
I've been working with 0201 sized bits. Not fun! Good tweezers are a major plus. I'll be looking into those ceramic beasties.. And I wish I could use lead solder, but not for product. My own messing, yes! We have various products, some using 70's tech, some using DSPs, ST and PIC micros and so on. So quite a variety. Thru-hole parts thru to teensy SMDs. I have Clive-style paws and am 60+. But manage... Sure is nice tho, using parts that don't all disappear if you sneeze. Thanks for a fun ramble and a useful lead. Keep on Clivin'! Enjoy, Stu
Good GOD! I shall never moan about 0402 ever again. (I will though)
01005s are great so have a little fun with that🙄😉 we use tweezers with 0.10mm tips
You can still get leaded in the UK depending on whos still stocking/sitting on it😉
@@edgeeffect And, as one of the other comments mentioned, there's smaller out there. Just hoping that the engineers don't decide that smaller is even better. As it is, I had 3 caps to replace, so I cut off a tape of 10. First 2 pinged off into space. Ended up with 4 left. May never find the others... Always grab several spares..:)
@@TinkerbatTech a magnet cam help you recover a lot of them (my workbench is edged in magnetic tape so if something does ping they usually catch it...including screws) but yeah I've been working on mobile phones & the likes for a good few years 7+ so i find it just as easy to do 01005 as doing a 5050 package its just down to the tools and equipment & PRACTICE really
Your videos are always interesting Clive, 500K, good on ya... :)
Congrats on half a Mil, big guy.
Now... On to the project.
Congrats on the 500k
The two dead LED's are because you soldered the resistors on backwards... ;)
And upside down...
...making leptons walk long way around ;)
@Martin Pickard You have the best comment on this whole page!
Altogether now: "how did the electron get on the bus?"
@@MarkTillotson don't talk about quantum mechanics on here haha.
Love the logo Big Clive looks awesome on the circuit board
@@johncoops6897 I agree you make a great point
Congrats on the subs!
Your having to much fun, I love it 👍🏻
Congratulations on half a million.
Welcome to the half million club! Congrats!
I think your paw tester worked out wonderfully! Congratulations on all those subscribers and keep up the great work!
Congrats on 500k Subs!
You should consider adding a rechargeable cell and a switch, for a truly awesome led coaster :D
I like surface mount components. No tedious drilling. I even use them on strip board. I tend to use smaller resistors like 0805s, I find them easier to handle, even with my old hands.
What about building it with a super capacitor and inductive charging so you can encase it resin and it will be a water tight coaster for drinks. And I mention a super cap so the lithium battery wouldn't have to be used and sealed in.
Yes! and with a thermistor that only lets the leds light when its hot enough from a brew! hmm and red leds when its hot and blue when it cools down! :)
@Dave Micolichek Awesome! Send us one if you make a few! :)
Chinese have intercepted this conversation and probably available at bang good.
@Dave Micolichek doesn't have to be in a coaster. Indicator should be embedded in glass itself, and should send information that glass is in need of refill wirelessly. Akmmm... The fact that something can be done, doesn't necessarily imply that it should be done. Because one day you may find out that there's a machine which drinks your beer for you...
@Dave Micolichek well, who said that glass has to be made out of glass? Actually, I meant a joke at first, but suddenly there is interesting vision in my mind of a working, flashing, and colours changing circuit embedded in transparent pmma or polycarbonate glass. Could be interesting to watch inner workings of cleverly designed circuit. I can imagine number of ways it could be realised. Including extreme version with invisible tracks. With those super tiny LED's it could be made to be a display screen. It could show different things depending on the level of fluid. Range of possibilities. From simple to hi-tech. By the way, I just imagined how it could be made out of real glass to give proper tactile impression. Ok. Stop the frenzy. Cheers!
I thought I'd never do SMD, but learned about it a year or two ago. One big lesson: get a stereo microscope, with good working distance. It's "only" 10X, but I can do 0402's with the small angled (0.2mm iirc) or straight standard Hakko tip (not their micro line). They're fiddly though. 0603 and others no problem. If I'm doing more than a couple, I've found solder paste and hot air (and sharp tweezers) best and got pretty fast with them. We moved last summer and I haven't built my lab yet, so I might be out of practice. One of my little projects was doing a hand laid out (no PCB, just protoboard) LED palmtree with 0805's - about 87 of them. The proto board had parallel rows that you can slice up to make your circuit, but for the LEDs, I figured I could do them all in parallel, powered by 3 NiMh AA's and a single resistor. I set it so it wasn't too bright, which worked out to less than 1 ma per "true" green LED. This combination kept the LEDs in the "knee"; barely on, but perfect for our room lighting. Lasted for about 8 days 24/7. No case, just used geeko tape for battery case and a couple of stand-offs point out the back bottom to make a stand. My wife loved it (she's a geek too, so didn't mind the open construction one bit). Loves "true" green LEDs too. I ramble too much! Most importunately, congrats on 500K as of this evening (from central California)!!
"Our biggest export these days is fraud". Upvoted.
Even though I disagree with you about Europe. Projections say it'll cost us far more money to leave than to remain. That, to me, doesn't sound like a helpful move.
I've seen one of the darker sides. Bulk immigration-agency workers being exploited for minimum wage and the British workers they replaced losing their homes. There's a huge difference between visiting the UK to work temporarily and living in bulk shared accomodation, and actually living here and having to pay a mortgage and the upkeep of a family. A lot of skilled British workers have been pushed out of their trades. It's strange. The media never mentions that.
@@bigclivedotcom It seems that big money are using this tactic to devalue the workers so they can enhance the profit margins and return us to the days of ruling class over serf class.
@@bigclivedotcom Social dumping is definitely a huge issue that has to be tackled in the EU long term. It is infuriating to see this kind of exploitation of workers anywhere :(
Keeping companies accountable for their labor practices is absolutely required going forward. Putting pressure on companies with shit practices is also something the consumer can affect a bit. I sure as hell would not do business with a company that ran these kinds of bulk-accomodation systems. They can sod riiiight off.
bigclivedotcom
If you consider that the same small group own the media and the companies that deal in desperate foreign - and domestic - workers, it isn’t surprising that it isn’t reported. The UK is as corrupt as any ‘banana republic’, in reality.
@@bigclivedotcom Wait until conservatives, freed from EU "socialism" strip all worker protections, NHS and all other benefits and see the same skilled British workers working the same jobs for half the previous pay and be happy about being able to work at all.
Pre-EU Britain is basically pre-WW2 Brittain - much smaller, much less wealthy with no extensive supply chain manufacturing facilities spanning the single market that will now be snipped by borders. Businesses are already deciding - can we make this thing *just* in UK or *just* in EU (without UK) and later case is true more often than not, and for that case it is cheaper and more predictable long term to just move a factory or two out of UK and make the product entirely within EU single market and never have to deal with borders, tariffs and delays. Multiple such moves have already happened and many more will follow.
Congratulations Clive on half a million viewers. That officially makes you as popular as the UK following of Aussie soap, Neighbours. Rippah!
Ohh my.. that would make a beautiful wall mounted light switch. Very 😎 cool
I recently assembled Dekada substitution resistor, i bought it straight from the author via his eBay account, he's somewhere in Slovenia. It's all made of 1206 resistors packed tightly together, and it is somewhat on the finicky side. Took me an hour. It wasn't unpleasant, but made me wish i'd used the paste and heat method. I have everything i need for it but couldn't be arsed for some reason, decided to just hand solder it. I'm kind of used to doing SMD repairs but don't usually assemble SMD kits.
It's fairly obvious that had you made your light as a through-hole design, it would only take you minutes to assemble it rather than half an hour. Then again paste and heat should take mere minutes too.
One more thing i used to do is that you can cover a PCB in fitting solder paste (lifetime supply about 7€ at a home improvement/hardware store), heat it all up - stove top, heat gun, doesn't matter, and it crackles and pops and tins your whole board, protecting the copper traces and giving you a surface that's even and easy to solder to.
501K Bravo!!!
Many moons ago, in the early 90's i worked for a large Japanese firm, they had a machine that used to place every surface mount component is one go, it was something to see, but a bloody nightmare if it drifted minutely over a run...which did happen quite often sadly
Nice! I always assumed you had to fart about with solder paste and heat guns for surface mount - feeling much more confident after watching this, might even have a go at replacing the ASIC in my black +2 (Spectrum)