Lets take a trip down memory lane to back to 1976 - 1977 .
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- เผยแพร่เมื่อ 5 ก.ย. 2024
- The winter of 1976 is one of my fondest memory's of been a kid ,
I discovered Electronics Today International magazine, sadly now long gone here I re create the 1970 s with a vintage TV set and project from a magazine enjoy .
Michael Dranfield.17-12-2022.
![เปิดใจ พี่ญา คนรุม หลังทัวร์ลง หนักสุดในชีวิต!! l [Nickynachat]](http://i.ytimg.com/vi/2-OJZRtclro/mqdefault.jpg)
The end of this video is so genuinely touching. You recreated the whole project, and then recreated the whole cover photo. And Mrs Stanfield looked very focused in the game.
She's focused as she's absolutely useless at playing this ! Keeps moving her arms about instead of just turning the knob .
What an absolutely fantastic video. You're an example to us all Michael.
Great package of electronics, nostalgia, graphics and the recreation of the magazine cover! What a treat.
I really enjoyed your trip down memory lane and the front page reenactment - it turned out great . Takes me back to the days of religiously buying Practical Wireless, Electronics and Practical Television, most have my copies long gone now. 10 years older than you Michael, now retired but still like to keep my hand in and keep abreast of modern tech, I look forward to your videos, keep them coming ! Cheers .
You may have noticed I don't tend to get rid of things ! Planning more projects like this in the future time permitting but will have some more repair videos soon as there already on my camera, thanks for watching .
i remember building this exact same thing at school . happy times
The AY chip simplified the design , prior to this 50 of so logic chips were needed to make a tennis game , the 70 s certainly were happy times.
What a fantastic video Michael, I am 5 years older than yourself but watching this video reminded me of myself as I had that ETI book with many others like that. as a 12 year old I was always in a shop in Liverpool called Super Radio buying lots of components and valves to build stuff at home like amplifiers transmitters and a disco system using a push pull pair of 807 valves in the output stage, I did all our school end of term discos and any others I could do taking all the kit about with my Dad in his Mini. You have given me so much enthusiasm to re-visit it all again so I have found all my components that I had kept from those days and have been to Ikea to buy some drawer units and a large worktop so I have built new workshop in our spare room at home, so at this moment sitting on the bench is a signal generator, a variable power supply, spectrum analyser, frequency counter and an oscilloscope also lots of component storage drawers. You have with your videos and great enthusiasm sparked me off again ,Happy Christmas to you and all the family keep up the good work *****
Regards
Dave Fletcher.
Glad you liked it , I couldn't imagine a world without electronics and that's why I keep going after all these years , I has also sparked off many memories for me and I need to make some more stuff from magazines if only to keep childhood memories alive .
all that effort into correcting /decoupling issues - then fix the telly with a good old fashioned bit of impact maintenance - loved it
That's how a lot of TV sets were repaired back in the 60- s and 70 s !
This is brilliant, you built a very nice looking machine there and good quality too, thank you for sharing.
Many thanks for watching , have plans to make more stuff in the future .
This was one of the most enjoyable videos I have seen in a very long time. We thought back then this was fantastic, how things have changed. Merry Christmas to you and Mrs Dranfield. And love to see more videos like the in the new year.
I know how you feel , building this brought back so many memories of how happier I was when life was so much simpler, and the smell of the hot dust burning on the dropper of the 1400 is to die for .
Made me smile.
Great video thanks, I watch each and every one of your videos and especially enjoy the trips down memory lane. I started my TV apprenticeship at 16 (1973) so have a few years on your good self, left the trade at 21 (Argos had started selling a portable TV for arouind £59 and a VCR for £99 so the writing was on the wall) to work for ITV then at 25 started my own business repairing coin operated video games, strange how so many people I know got a good electronics grounding in the trade then moved to all different careers as repairing TVs etc became a dying art. Although now retired I still like to keep my hand in. Keep up the great work and a very merry Christmas.
Prices have always fallen on consumer electronics but I never thought it would get this bad, the last VHS players I saw sold at Argos were £39, I think they were selling them off cheap as no one wanted them anymore. Considering how much money I make on repairs these days I really should get another job but I just can't stop, it's a lifelong addiction.
Absolutely brilliant Michael. All the best!!
Many thanks for watching , hopefully more to come in the new year .
Certainly brings back happy memories, I got a bright orange Binatone for Christmas 1976, it was amazing back then to have one of the first video games, it got so much use that it burnt the screen on my 1960;s dual standard Ferguson personal TV!
I still have it, and it still works after 46 years, the only replacement parts were the pots in the paddles, it was later used as a pattern generator in my early TV repair days.
I have somewhere in the loft a orange Binatone that I got from Glossop tip some 15 years or so ago , all in its box and fully working , yet was thrown away , its not that visible of my Ferguson set but at some time the set has had a frame collapse and someone must have carried on just listening to the sound as it has a feint line burnt on the phosphor .
@@michaeldranfield7140 The worst I have ever seen was a Panasonic 10" mono security monitor, the static image was so burnt in to the phosphor that it was possible to see the image even with it powered off! Luckily I found a similar monitor in a skip & changed the CRT, now works perfectly, but it has a green screen!
I have come across many TV's with damaged phosphor, I repaired one of those huge 42" rear projection sets that had the channel logo burnt in the top corner, also had a few Plasma sets with the same problem.
Then there was the ion burn problem on early mono sets with a straight gun, such as the Bush TV 22, later sets had an angled gun with an ion trap magnet.
Man, what I'd give to be able to spend some time with you and your huge passion for all things electronics. You would have a really difficult job to try and find another Michael Dranfield out there, if any. Have a great Christmas to you and your family Michael, from all my family in Galway, West Ireland 🇮🇪🎄
I don't know, John Joe is my successor, he has the same passion for electronics but he doesn't do it for a living, he so much reminds me of myself it's unreal.
You are an inspiration I love your videos and Someone with so much passion for electronics at component level
Thankyou for that , back then everything was component level, no fun now repairing modern TV s all board replacement unless you are lucky enough to find a faulty component without a service manual .
Nice one. I have that chip somewhere. I bought it back in the '70s intending to make up a similar project. I did assemble the project on a prototyping board, played around with it for a while, got bored, and never completed it. I have many ETI books including that one, and Top Projects as well. Also 100s of the actual magazine. Many people don't realize that ETI began here in Australia as Electronics Today, but soon branched out to other countries, becoming Electronics Today International. I have some of the early issues, when it was Australian only. I've built many projects from the magazine and books, but have found that they usually require some modifications to get them to work satisfactorily. 😊
Interesting , I didn't know it started out as an Australian magazine , unfortunately due to not finding this till 1976 I missed out on the early years and don't have these magazines in my collection but I do keep seeing the odd ones on e bay and buying them up , I believe it was launched in the UK sometime 1972 ? Yes this project needed a couple of slight modifications to make it perfect and I even remember making some things out of ETI circuits that didn't work at all .
Ah, I remember doing hand drawn PCBs as a kid too. Our electronics teacher at school always told us to "colour in" any open spaces on the board to make super wide tracks or ground planes. I think they were more interested in reducing acid usage though. ;-)
Dalo pens we used in those days with blue ink , now its just an indelible marker from Rymans, however for large tracks and ground planes I still use today what I used 40 years ago , red nail varnish .
I was 5 in 1976 haha..I got a belt from the teacher on my first week and til they outlawed corporal punishment around 1982 here in New Zealand I received many others from teachers and principal, but...I turned out alright 😆..great video Michael
Needles to say I was always in trouble at school as they never taught me anything I wanted to know !
@@michaeldranfield7140 I second that! Some maths was handy at times, but not a lot else.
I confess I got a bit misty-eyed at this, Michael. Thank you for sharing the work. Wonderful trip down memory lane. Don't forget the dry joint fix in the TV, now. :^)
I re built that set for a TH-cam video a few years ago and its preformed faultlessly all this time apart from the intercarrier buzz until I bring it home ! Typical
Great video which started my grey matter, I've still got that magazine, saw it in the summer when clearing out my garage....and yes found it :). I think I built the sound to light project in that edition. I also built a 'tele tennis' but cant remember which magazine it was from may be Everyday Electronics, ETI, PW etc. It a UHF module. Happy days. Keep up the excellent work. Thank you for the memory.
Tele Tennis featured in both Practical wireless and Television magazine in 1974 but both these articles were pre large scale integration and were built around something like 50 or so TTL chips over multiple circuit boards , the release of the AY chip made this project so simple and economically viable for mass production .
That, Michael has got to be one of your best videos. I remember building the 20W slave amplifier too, from scrap television parts mostly, around 1981. What are the chances of that happening? Our local TV repair shop often had several non-viable sets behind their premises for the taking. I even repaired a few to make some cash. The mains transformer was an old vertical output type from a valve set which, when regulated, did the job and worked well. I used an aluminium box and built the entire circuit on Veroboard. It actually sounded quite good. I also had fun with DX TV for a while - receiving French TV on the UK south coast and having to reverse the modulation detector diode... happy days!
The magazines of the day were very inspiring: ETI (as you showed and one of the better publications), Everyday Electronics, Practical Electronics and Elektor (Elektuur in the Netherlands). I am four years older and have been delightfully transported back in time thanks to you. Who said time travel wasn't possible? As you said you have the original articles of ETI, would you know please what the original recommended supply for the Slave Amp was? I seem to remember it was around 25-30V (single rail). It was building projects like those that inspired me to start a career in electronics. Great video! Steve in Dorset
It doesn't atcually say in the magazine what supply voltage to use and I used this on 12 volts at the time but I would think no more than 30 volts would be sensible.
@@michaeldranfield7140 Thanks for your reply. I remember the original article being a little more detailed, but for 20 watts into 4 ohms, 30V is about right considering the drop (loss) across the quasi-complimentary output pairs.
This is so good on many levels thankou. There is something comforting about covers on electronics magazines from these times. I remember an earlier one a drawing of a valve project on a table with a smoking soldering iron and a warm mug of ttea
I probley have the magazine your talking about , I think it was in 1950s practical wireless when the front cover of the magazine went to full colour rather than just been red and green .
@@michaeldranfield7140 That's the one it was my dads from the 50s the smaller format lovely warm colours hand painted or drawn I think, hope, still have it in the loft.
Love the build, Them AY-3 chips were a box of magic, the 80s would not be the same without the AY-3-8910.
Its funny how back in the 70 s such a simple thing could give so much pleasure .
Really fun video Michael, very nostalgic and interesting, love the way you knocked up the paddles out of surplus clutter 😂
got rooms full of clutter at work ! and quite a bit in the loft too .
Fantastic, brings back great memories of building electronic projects. I used to get most of mine from the Maplin magazine. I started of with simple things like a voice operated switch and eventually moved on to a NOAA weather satellite receiver, decoder & frame-store. The great thing with Maplin projects was you could get all the components from Maplin, very convenient for Maplin 😊.I’ve made many many PCBs over the years, started off drawing them like you and then moved onto printing them onto a special film using a Laser printer, the film was then ironed onto the copper clad board. Then once you removed the film you were left with the track layout, then you just washed the board in Ferric Chloride and you ended up with really professional looking boards. Of course now you can send off a design to China and get a multi layer board, not as much fun as making your own though. Thanks for the great videos, Happy Christmas to you both.
Yes, back in the early days I use to get a lot of components from Maplin s too , couldn't wait for the new yearly release of the Maplin catalogue at WH smith , happy days .
This video really touched to me. I remember my young age, when I built this game as well. Thank you and Merry Christmas.
Certainly brings back memories of happier times as a kid , no bills , no worries , days seemed far longer .
What a great video,real good watch. Merry Christmas to you and your family.
Many thanks for watching .
I remember having a console that had this game on...when i got fed up of playing it i built a infrared remote paddle for it and the family enjoyed not having to sit on floor to play..Merry xmas..Phil..
Oh my goodness, those were the days. Can you imagine what we would have thought way back then if we were handed a fully activated iPhone 14? Awesome video
Its amazing how happy we were back then with such simple things
Love it - I made one of these in the 1980's, it had an Astec modulator. Hours of fun. It was in the same style of case. Not as good as your graphics MD
I didn't do the graphics, I'm not computer technical, I got a friend of mine to design it, the then printed it out on a laser printer and laminated it, all I did was cut it to size and glue it on.
Fascinating build. Great fun to watch.
Took a while but worth it I think , many thanks for watching .
Fantastic project Mr Michael...!!! 👏👏👏👏
Many thanks for that , and for watching .
18:20 If you and your wife swapped places, then it was identical like on the front page of that magazine 🙂
Nice project and with quality builded.
Yes , I realised when it was too late we were in the wrong positions in the video .
@@michaeldranfield7140 , still a great video and original concept for recreating something from memory lane. Grtz
Another extremely interesting video - thank you for sharing it with us.
Even dating from 1976 the workings of the game itself looks so simple in terms of its circuitry.
The retro game you made is excellent - you should start making them commercially as there is a big market for that type of game today....
Merry Christmas to you and Mrs Dranfield.
It is very simple due to the use of a large scale integrated chip , LSI , there were a few other designs published further back to 1974 but this was before the event of LSI and consisted of something like 50 TTL chips and masses of electronics which would be a very time consuming build . To make something like this commercially would require a new chip as the orig ones are now getting hard to come by .
@@michaeldranfield7140 I guess about 1978, (I'd be 14) I somehow got to some electronics show & came back with 2 scrap "Pong" PCBs. One was about 40, 4000 series ICs. The other 40 7400 series ICs. I made an RF modulator & got the net & players on screen but didn't ever get the ball working!
Happy days!
@@alanm8932 your probley same age as me then , there was a design published in practical wireless about 1977 ish and it had hundereds of TTL chips just to play one game , this would have given you a great insight into how the ball is generated and moved across the screen , very happy days indeed .
@@michaeldranfield7140 I only bought Practical Wireless a few times, so missed that project. The RF modulator I made, might perhaps have been from that project, which sounds like it would have been split over several months. I think it used an RF transistor in a 4-pin TO18 package. I don't think it had any coil, just an "L" shaped track on the PCB.
I did try to reverse engineer the pong circuit but as it used standard logic ICs, different logic parts of each IC were likely to be performing entirely unrelated functions. If I'd had a few sheets of A2 paper to do a few iterations of the circuit, I might have got there!
Heh...we're the same age. But the Spirit of Radio Electronics took me as her own in 1985...I bought someone's project a couple of years ago, a 1952 PW Mini-Four. It's mostly restored.
nice work mate
Many thanks for that
Hi Michael I built one of these tv tennis games from a circuit in practical wireless (I think). Still got the photod. Absolutely full of "descrete" ics
Yes I have dug the mag out the loft , PW 1974 Tele Tennis , and packed with TTL chips , must have been a nightmare to build a discrete chip version and if it didn't work first time , doesn't bare thinking about !
Awesome little project Michael, i remember taking one of the commercial manufactured games of the same kind apart and using it to flash lights and make the beeping sounds in a primary school project back in the 70's ✌👍
Thankyou for that , for me my memory of primary school was the Rolf Harris xylophone , oh and the set of D s !
Hello Michael from Melbourne Australia are used to work for NEC in the 80s did you know Rank Arena was in actual fact and NEC TV I remember those 70s ETI circuit books I had as a 1617-year-old kid noticed the Australian price on regards Mike PS keep up the good videos
What a brilliant recreation. Thanks for the video and I hope you and your family have a lovely Christmas!
Thank you for that , I am sure this will be the start of more to come .
I remember that PE mag!! I had it with all my others in binders, but I had to get rid of them all after I left home :( . I never built the game though. Now I collect car, computer and astronomy magazines!
get rid ? , I just bought a bigger place to keep everything in !
I had a working Thorn 1400 dual standard "buzz box" given to me when I was an apprentice at D|E|R in 1983. I kept it for quite a few years. I can't remember what happened to it. Wish I'd kept it. I think it had a wooden cabinet and looked quite nice. The pong machine you built was quite nifty. I liked the fact that you built the regulated power supply from the ETI magazine too. Happy Christmas to you and yours. 🌲🌲🌲
Yes , the buzz box , over the years Thorn came up with many modifications to cure the inter-carrier buzz but I cant remember if any of these ever worked or not , its a long time ago now .
@@michaeldranfield7140 I remember talking to the tv engineer who gave me the set said there were several mods they had tried but none seem to totally resolve the issue.
Absolutely wonderful stuff Michael, your attention to detail is brilliant. Great video. A very merry Christmas to you and yours.
Many thanks for that John Joe, I am sure this will be the first of many more projects, my new year's resolution to make more stuff!
I presume you already had the chip? I remember wanting one of these in about 1976. They were very expensive. I finally got one in 1978 in America, we were on a big road trip and i remember connecting to every motel we went to. It did still work on out TV back in New Zealand despite the different number of lines.
Yes I have 3 chips new old stock , you have to be careful buying these on the internet though as been an American invention there is a NTSC version , cant remember off the top of my head , I think it has the same number but with a letter at the end .
This is awesome.
WOW! You just caused my brain to race back into my memory of childhood at or around "18:26" and further. I played this at my grandparents house.
Back in the 70 s this was the most amazing thing ever seen a bit like the invention of the calculator and digital watch , hard to believe how happy we were those days with just simple things , I showed it to my son and he's never seen a black and white TV before , I'm so glad I grew up in the 70 s to see these things .
That was fascinating to watch and with experience you even improved the original design. I think I have that very magazine in my collection too. I used to make my own pcbs the same way. The days when you could post ferric chloride ! Merry Christmas !
I remember very well the first time I got an etching kit , I think it was from Grenweld and the ferric chloride came as pellets in a plastic bag and you had to add them to water very slowly
@@michaeldranfield7140 I remember Grenweld, J Bull, Bi Pre Pak and others too. Still have a few amp modules in a unit I built when I was about 15. I had the Dalo etch pens and the ferric came as crystals in a double sealed bag through the normal post. Later on I used transfers and then made up artworks on sheets with a light box. Happy days !
This must be the project you mentioned a few weeks ago. Great recreation of the front cover, Michael. Interestingly a few mods were needed to get it stable.
It is indeed, took a while to finish though as I have so much other stuff going on and not enough hours in a day , think I started in about February !
Great video Michael, I have ETI circuit 2 in my hand right now. £1.50 March 78. I built a lot from it too and brought it to Australia when we moved from uk 32 yrs ago. It has mostly transistors and moving on to 741s and 555 projects. They came out with a 3 or 4 later but never used it as much as 2. Would be interesting to see how many viewers remember these excellent magazines .
yep , got the ETI no2 also with the light blue front , I have the others too that you mention but I think they were called ETI top projects ? and were just re prints from the magazine itself , I must have a look in the loft and dig them out .
That was an excellent video. Very much enjoyed it. I have been building circuits from magazines since the early 1980's off and on. With the archives now available at the World Radio History website, I have enough projects to last me the rest of my life. Plan on building an electronic Tic Tac Toe over the Christmas Holiday. Just received the final parts for the project in the mail this morning. That circuit was in the November/December 1978 issue of Elementary Electronics. Plan on building the capacitor tester in the same issue named "Count Capacita" next month some time.
Not heard of Elementary Electronics so I'm guessing you are in a different county , The world radio history site is very interesting but not half as good as having the magazine in your hand !
I think this has set me on a journey to make more projects , its just a pity there isn't more hours in a day .
@@michaeldranfield7140 Agreed. Much nicer to have the physical magazine. I have stacks of Radio Electronics magazines and also Popular Electronics. I am in the U.S., so those were the popular magazines over here. Also have a few physical copies of Electronics World and Everyday Practical Electronics. A newsstand about 70 miles north of me used to carry them for a while in the late 1990's to early 2000's. I would always pick up a copy of each if I were up in that area. Always felt that the electronics magazines from the UK were very interesting and in many ways superior to the magazines from the U.S.
Elementary Electronics was also published in the U.S., but I didn't "discover" that magazine until the World Radio History site came along. They last published in 1981. I didn't start subscribing to electronics magazines until about 1983 when I was about 15 years old, so I missed out during the original run.
that same chip was used in alot of pong /tennis machines in the day ,and were probably sold by the bucket load a ay-3-8500,had some other functions which i cant remember right now
but still really simple and interesting
One of the other two functions was a light gun and target moving across the screen on this one but that was to appear in a later magazine as a add on upgrade , its on the switch as R1 and R2 , rifle but needs the extra circuitry where there is a blank space on the PCB .
@@michaeldranfield7140 thats what it was,interesting project thought about it myself oddly enough
Actually this video is much more interesting than it appeared by its present title. I think you should rename it like, for example: "Building one of the first gaming consoles from scratch from a 1976 project" to achive more views.
Another really interesting video Michael. Your vids are relaxing to watch, and a nice change from the usual information overload. I like the way you also greet your female viewers. Your loft is tidier than mine! I had a bench up there, but the loft is too hot in summer, too cold in winter. There are long forgotten projects under the tangled mound on my bench. So I envy your relative lack of clutter. I have never thrown anything away hobby-wise, so I still have that eti circuits book, and all the ETI magazines, Elektors, PW from 1963 onwards, PE, PTV, WW and so on. I wonder if you remember the Ambit catalogue of the mid 70's which had a lot of useful information in it?
Anyway sorry for the waffle. I wish you and Mrs Dranfield a very happy Christmas, and I look forward to seeing more videos in future.
I remember Ambit yery well all though I never bought anything from them, they specialised in RF components and tuning capacitors, coils.
I made a similar one that was published in TV magazine. I remember I had so much trouble
getting a steady picture, I didn't make the pcb though as you could order all the parts as a kit. great vid!
I am not familiar with the television magazine one , I must look it up , a couple also appeared in practical wireless , 1974 -1975 ish , one which only played tennis had no LSI chip , it was all built around 50 or so TTL chips and was housed in a massive case.
@@michaeldranfield7140 Yes, I still have it in my loft, now i’m going to have to get it down and see if it works, wonder if it’s the same chip?
@@michaeldranfield7140 It was TV football late 1974 in TV mag. If I recall on plain veroboard....and a lot of boards whereas the same year the PW TV tennis game was on multi PCB's also with descrete logic IC's. Come 1977 EE had the 'Stuntplay' motorcycle game with the AY-3-8765 I think.
Richard
@@ukfmcbradioservicingTango21 Absolutely correct Richard, I have just dug it out in the loft its July 1974 and as you say mall TTL and it only plays one game , Tennis , just noticed as well on page 253, there is an advert for Practical television and it says TV football game coming soon , so I must have a look at that too as it says for a colour TV , I vaguely remember now a motorbike game in Everyday electronics .
@@michaeldranfield7140 I found one Television magazine, the part 2 was in August 1977 so I guess the first part was in July which I don’t seem to have anymore. The title of the article was “TV games in colour” I initially forgot it was in colour but now remember it had a blue background and the pucks and ball were yellow.
Wow takes me back Michael very impressive. I had this game on early Apple computer software rather than hardware Wondered how you etch the çct board. Thank you
How many more AY-38500's have do you have? Those are a very rare chip these days. GREAT time warp video thanks Michael. I've got that magazine, and others from my youth.
Cheers
Pete' New Zealand.
Bought them on the internet a while back but you have to be careful as there is a NTSC version with same number but I think a letter at the end or some very slight difference .
I had 3 in total , you can still find them on the internet but make sure you dont buy the NTSC version .
Took so little to entertain children in the 70’s …🇬🇧👍🏻
This was the stuff of dreams back then. We borrowed a Binatone one off a friend of my Dad. I can remember him being really strict on how long we could play, and making sure the brightness and contrast of the rented TV was turned down (I think the rental contract had a strict policy on the use of these due to possible screen burn)
So true , these were far happier days than today .
Definitely built one of those but my memory is failing (probably magnetic core) so can't remember what became of it. Retro games still being played by many. "I don't have an oscilloscope in the loft", life's a bitch, ho, ho.
Great project, thanks for the interesting video and Merry Christmas! Michael, could you tell please, how did you do those writings on the heatsink of that 20W amplifier? I've also seen writings made by same technology on many of component storage cells along the walls of your workshop.
It was made on a Dynamo Lable printer and I might be wrong but I belive they still make these mechanical printers today.
An *NTE107* is a replacement for the *2N3663* .
I needed a transistor for an amplifier a while back and someone suggested a NTE replacement but when I looked into it NTE seem to be an American company and it wasn't available here in the UK .
@@michaeldranfield7140 -Maybe on Ebay?
@@tubeDude48 yes thy were on e bay at about £6 plus post which I thought was well to expensive but the substitute I uses worked well right up to 890 Mhz .
@@michaeldranfield7140 - Sounds good!
@@michaeldranfield7140 - BTW, the 2SC2570 also crosses over to the NTE107, so good choice!
Hi Michael, I would be interested in knowing how you made a copy of the games PCB. It looks like you transferred it from the magazine article - perhaps using a photocopier? Because there is a strip line on the board, I assume keeping dimensions are important. On the question of striplines, I never understood them, so if you want to do a TH-cam video on them - that would be great. Finally, where did you get the chip from; can you still get them today? Thanks again for a great video.
Absolutely correct , I got a friend to copy me the image on a laser printer to photographic paper, on the subject of strip line transmission lines I am sorry I cant help , its not something I have ever got involved with but as I understand it its only a matter of measuring the strip line to match the frequency you need .
you need to look on the inter net for the chip as these are long obsolete ,but you have to get the exact one as there is a NTSC version too .
How much expensive was at the time to build this console? Because I seem to remember that the first gaming consoles of this type were quite expensive to buy.
Back in the 70 s everything was expensive to buy but to give you a general idea this would have not been cheap to make either, the cover price of the practical electronics magazine was 40p and Maplin electronics had the chip on special offer to PE readers for £8.99 so the chip alone was a massive outlay .
I enjoyed this video and have been looking for a game like this to incorporate into a CRT display I have, I did a search for the IC and found a few available (I could use the 625 or 525 version) but I'm wary of fake or faulty components, do you know of a reliable source ?
I got the chip on e bay from someone who had a load of old stock components , all I can say is look at the sellers other items , if there running a business the components could well be fake or used items made to look like new , its not difficult to spot someone just clearing out a load of old stuff from a deceased relative to some selling parts for a living .
I have to ask, where did you obtain the GI AY-3-8500 pong chip from?
Internet search but there is also a NTSC version .