Fjerde del af Michael Fremer´s besøg hos Rega

this is also going out right this is been now recently read that whoo what happens that the green is this your custom this is your cut this is your custom trash compactor on the green Oh Lady may be painted you I'm kidding I'm kidding so this is your building yes let's take a quick walk so this is the back of the building here it's the battery this is the fist of this this part poetess and this wasn't me when I came was this and this seemed like a big building maybe what a thorium sees over there so so like if you ever wanted to a big a big event you can't and what's in there just just storage sorta part of them about we're going to be moving out [Music] it's good it's what are these what it's Steve do over happens now is parts come in too cute it's tiny little pokey Department oh if they're short in production people sneak in and steal part you know before they're this is this is all you see at Riga is six that's all you see you don't know what it is you think it was this six company and what do they make what do they make over here at six this bit was my my design I sort of plagiarized houses in the forms of old building towers and so far it's very European for sure okay we should go in I'm freezing [Music] these are all people who don't play records they just hang their records on the wall you know as they say next time what you're missing there because it's later today Michael Jackson pressure so that all of you to say [Music] complex take the shapes little tiny pips different natural frequencies for each part Murphy tried to make it as rigid as the non-us compliant as people Network they're trying to make it as rigid as possible but without any high-frequency natural frequencies within the hood right very minor tiny little point is still done [Music] which we patented instead of using a bearing and a thread and our nut underneath we're able to machine the thread into the bearing oh-whee tolerance the hole in the plinth so that we then cut this as a screw the screws in and cuts its own thread out into the turntable but we wouldn't believe the sound quality difference at mate really every turntable at this level gets this contest every timetable that every little gets pain test given either this bit more exacting that's right this one is this building goes all the way through the floor down to ground okay the ground we've got a huge chunk of concrete that's good it's the opposite of what you need pretended we're trying to build the greatest mass always to do our testing pleadings we try and have the minimum middle mass so now because every POF you can sit on this yet intriguing the residual this is a test assignment you know it's in the right y'all pretend we're talking probably something you can see yeah okay sure yeah all right so now we're gonna get a demonstration of this new technology that you've developed that Ashton is develop is American to to quite American from pense territory to measure Wow and flutter is what we're gonna measure here mm-wha flutter speed every every facet of who cares they're cooking is that contentious for you yes there is the that same intolerant they are here so it shows you what they expect to get what they will demand to get from the player 1 player 2 and player 3 or v6 or v8 about b10 look at the variation in the arc b10 they will not allow too much variation it's really interesting to see the difference inspect electrons this is a new chart that you developed this being that what you haven't been able to really measure it to the same degree as you can that with this just oh right yeah actually yeah but this is being around how long we cut these what we you now yeah okay and so this is this is uh let's explain this again what's on here is a decoder disk is that Carter disked and this these are quality on the pounds each to this yeah America yeah don't get done in England really yeah it's shocking so we might boast about a British and what are these usually made for music artist it's these these for other technologies yeah yeah all kinds of different stuff the the the sensor that we're using is a relatively commodity level sensor it's used to me things like furs some applications what I think but what is it's tolerant of misalignment vibration and various things you get much more accurate sensors but they they require a height offset but not the tolerance that is just not really feasible price okay so now it's running and it's measuring definitely there's also normally done on plastic I really want to find this is what is a glass check out our test boxes and we can select all different products and then when seems like our clinicas hit go and we'll collect out of her about eight revolution that's here to every one of these turntables every turntable late but the ones into stock is really you know this thing with a live there all spend if every area every template lose testing and and so this is for the this is for the eight and ten this is purely for the area that every bucket and so I can see we've got this one's past since green ghost greens to get a red red screen and fails green screen passes so then you know which within the tolerance listed up there as you built it into the into the system yeah it's worth quite wonder 712 lat right so that's that's the production system that's what everything sisters watch right now obviously when we were doing the project at school we actually started out doing most of the processing in the computer because it's so much easier to see what's going on you do the embedded system you know every fact like here you really see it yeah but we've used a graphical programs online you know just because it's a really great way to quickly and easily generate a graphical user interface and can you do can you that you able to generate where right now for that test yeah yeah to the C by the way the way the way it's set up right now it's fully asynchronous so y'all forgive me for setting off make sure the USB communication - working and now we've got the readout as opposed to being on here where it just says pass or fail now we're seeing locked out so we'll collect so they run asynchronously running on basically the the Box the interface of the sensors always and it's rolled out out to the computer so you can just run it whatever you want but um yeah we'll sit and collect some data the process we got a new version list that runs in real time you can see you know your needles moving around and it's good fun but it's not quite so what we're seeing on the screen there is not what's being collected now that's a that was the previous previous yeah yeah okay there's there's a there's a run now you should explain the the resolution here so people don't think these are enormous precipitous drops and yeah yep right now this one's set off skellige something Roy wants to change I think yeah we can zoom out a bit my brain is too simple to understand you need to that looks better it looks better that's important so I'm gonna sound better - yeah but no this just gives us pretty much anything everything you want you've got here so explain what we're seeing now to people so the top graph is just your the raw speed data come from the sensor there's a bit of averaging to get rid of the noise that you pick up that is most raw speed basically and if you look at this scale it's it's between 33 point well it's not going three three point five and thirty three point three I mean it's really right very close it's dropping down it's a 33 point just below 33.3 it's and it's not going much about thirty three point four and change so it's okay that's the top one the middle one is then we've got unweighted and weighted wild flutter I'm sad that does the calculation literally just as a percent deviation from ideal speed it's it's it's a bit more complicated that it's it's deviation from the averaged speed so if you trim table if your drift is up but safe they're three point five it will calculate that around thirty three point five okay or whatever the turntables right now so this is showing approximately 0.15 would you say it's the maximum plus or minus 0.2 in a couple of weeks but and then what's the bottom one showing that's just an FFT you usually need to run the longer you get better resolution yeah but that's to look at the actual frequency of the speed variations and I can tell us things about whether it's a poly or some platter what what's causing the aberrations learn okay that's great that's really useful and will be more I think when we learn more about the equipment you know to little bit I think but this is where they test our three 3s and our piece sixes and here's p3 k fe 3 c fe threes so we today we're getting towards the end of the day to do things we're starting what can I show you alright so in other words things are built and during the day and then lately afternoon impact yeah we'll do a schedule for the day and we're getting now p.m. and are the same people who do the building do the packing or is it not necessarily sometimes sometimes you know when I get a card table into recently all kinds of parts missing that complain never has never happened I've never gotten one of your turntables review show a few Barrington epubs yeah annoying gun over there bye oh you just like to know music these are clean take anyone or yeah yeah III would pick a good one that may three there and then obviously report their eighties there as well so those variations just cleared us yes a p2 or not where you want to put the bag on the oil infused well these are ultrasonically cleaned and sealed so you know they can be left out in production so that's the sale I'm taking out now I just I just want you to feel this is pre-lubricated no lubrication if they don't get eliminated they do they do this is diseases dry yeah they'd lubricate at the touch that [Music] yes that's pretty good and what would that what do you think that would cost what is the price is right I have no idea I don't make anything one of these if we we put the drawing out of this bearing with the tolerance to just any manufacturer most would say it's impossible to make it to do it at that time because our tolerance on that boys 8 microns and that's the cheap one yeah and the people that do it or could do it would probably say 10 pounds 20 pounds we get these for something like 1 pound 21:34 bearing how do you do that by working with the supplier by using the process using CNC machinery now in the old days we used to use special cooling which were handset wood cracking little grub screws to the right so all this new technology that we have in general manufacturing doesn't mean they have yes if you take advantage of it another so that that's yeah that's it that's a p3 p6 Darrin ptoo no different the same tolerance or same terminal this is the same cup just a smaller that's an RP one I'll be preparing cut the cost by having slightly less browsing by material it gives a slight it's not so much the brass but the fixing into the turntable is a little less structurally rigid give you a greater fix America sure that increases the mass that you don't want to do too much on that to be relatively low but stable with temperature the show okay neide research helped on copy through Caesar braces that we use between the bearing and the arm yep it's different materials on different turns over using ceramic braces on the noid no it's not it does that existed physically to look at yeah I've got one at home and there's I think there's a nearly 100 you can see the brace yeah I don't think I noticed it and wasn't looking up there wasn't paying attention once you get not might get drunk I don't see what's going on p9 you're saying you're gonna have a look at the test room lots of little small mini ferno's from the preamplifiers that's a headphone amplifiers now this room is often used so how long is this whole system been in place with this encoder system not that one now are you my buddy something between one two that's not a long time considering you've been in business for how many years now 40 yeah just a big big improvement and be able to measure what your performances yeah yeah it's helped production and these come at the right time because the production come up in yeah I mean would you wouldn't have made this investment to make this but maybe you would have had business been flat no you couldn't know I wouldn't you wouldn't we're talking about one person for a year and the cost of all this stuff being made out in America and yes that's the one that's why I'm so you think I'm very excited yeah about the growth of the company it's given us profit which we can buy all of this stuff with invests we can we can get a guy like ashen and we can say you don't have to make anything productive you know we can reach your skills we can do so yes yeah yes that researcher it brings you to the point where you can only test these things you know think about that or no I know that working that was which was maybe sorry you need unique yeah okay you can use whatever word you like and I don't have to relieve rubbings are only Wi-Fi fanatic the only one seems yeah I'm surprised actually in this place that's okay people don't want to do what they do outside of work if they do it work I don't know Michael anybody pay their stereo great good thank you Android doing it which makes it worthwhile don't know yes I enjoy it this is our test room we test all the circuit boards before they go in the in the cases you could check from miss components jaw joints etc so that every single board is pre tested before it goes upstairs this is an area board at the moment now the boards are stuffed elsewhere yeah yeah we supply kits up to the companies actually populate the boards with the surface mount as soon as so you supply them with the parts you know that's it yes not that's the unique bit yeah yeah we use in a specification if I make the boards they supply the bits they assembly they test it they give it to you you put it in your product and then you test the photo and then if it's all too you have to undo it or doesn't make any sense we supply them with a kit of parts like a Heathkit like a Dyna kit all of these components we buy when she's making kits like this that you can people could buy their own surface machinery and you say he's out but the container of the moment Oh moving stuff around so what yeah this is an area board I'm just sitting up in testing that's just all the regulating voltages and there's this pieces what is this piece this is the moving magnet moving called photo preamp the Aria and what goes in here eventually there's a breakout that's part of the transfer molding I see laughs this is for further down the line and the the J FET transistors we grade we test them for X amount of seconds Mellon to the current flow and then we populate the board with the midpoint oh one milliamps difference between the transistor sort of nicely matched because they're mounted in parallel so if she's not an entire shop but uncommon uncommon level of quality for a low monthly price east yeah yeah which is not yeah one takes a bit more test in this one because he's got a servo and it to adjust the voltages to come safe temperature and everything so when you're testing you have to let it stabilize and settle down right and tweak tweak tweak so it takes a bit longer it's no object MoMA has a transformer input Oh is that under in production of easy being option for which model is a huge the aisles but we've recently discovered what transformers do it used to be a black you know we know they improve the sound quality we didn't know why yeah and most people I don't like to say it's hysteresis in it you know creates pro whatever we did with cartridges and microphones with a transformer in line and the sound quality improves dramatically yeah I don't know why we agree with this is where I mentioned John Cole with Harry he's never met him but he's investigated his philosophies something clicked and John Cole knows why here and now Terry does and modern Fe tease of which we're starting to put them in yeah double ones yeah and these are the single ones here it's quite simple my take on it is that an input stage is also able to make a small output voltage okay if the transistors are not matched there's a mismatch between them there's a small very low current flow moving magnet cartridge you've got very high resistance at you see relevantly put 15 ohms across it and you've got a small current loss however well you match it ya know with an Fe T you've got a very very high output impedance which is what the transformer is John Cole discovered this in the seventies yeah and you can tell the world why would I mean I don't know because I don't I don't know him that and after he's made successful moving coil inputs probably more than anyone he's also mental the world he I know Julian name you've got all of his information from John yeah free of charge and you know in a friendly right offering now check this area and when we're now looking at that and he's going to remake the iOS without Transformers using these modern matched pair what you think will be better Oh what we we've done it on the Aria we're using the matched pairs and the differences is huge so we're getting quite excited about the conflict as soon as you put fully complementary the matching becomes fifth one ten times as important 224 it's what makes a complementary circuit not work and what makes it contentious right it's like madness yeah but you can't match it either right exactly but when they're right now they are they're matched pair in in the silicon chip they're matched and you get a call uh some work to version no this is just a one he just done it as a running change but we had to listen to it only only a couple of months ago whoa Wow I mean Terry does these things he always gets it approved you know he always says why he team of people have this and sometimes it's great it's no different there's a big difference then how does somebody know with their work when they buy one whether they're getting it up one with big difference in sound or that or the old one new are they up because the old ones are being sold so anybody use when you don't know what you're getting oh no but we haven't even announced it oh well it just did yeah we just did that but there's no this is a normal evolutionary chain so you wouldn't call it a mark to version or not much as a lot girl but what we're getting really excited about is a cost no object oh no preamp the fun using this contest for fighting I can sell it well sell it but it won't it you know will so 58 year or some chemical yield retail for four or five thousand yeah there's a big market for that relatively you if you give it as good as you think it's gonna be in this funny how much the most it's possible really yeah and another that's money no object right Ross southernfry including the case work and everything actually go to the dedication which is a major part of the cops I know okay well thanks don't electrocute yourself