Linn Forums

Current time: 2017-10-17, 19:43 Hello There, Guest! (LoginRegister)

Linn Forums / Linn Music Systems & Hi-fi Separates / Turntables & Record Players: Linn Sondek LP12 / 3rd Party Modifications and Parts v / Stamford DC Motor?

Post Reply 
Stamford DC Motor?
2016-03-16, 22:46
Post: #21
RE: Stamford DC Motor?
The Mober will be on demonstration at the Wigwam Pie Fi show in Melton this coming Sunday in Syndicate One.
I have had a customer in our music room this evening who after listening to our Mober powered VP12 has asked to part exchange his Lingo for a Mober ... and as a point Peter .. no it was not the disabled customer I called you about earlier .. the guy who purchased from you the Funk RB-300 with missing parts ... ??

LP-12 VP-12s/ SME 10 & 20/ Hanss T 30 / TD-150s / Ming Da 2006 / Vincent PH-700 / Ming Da MD7-SE / Vincent 995 Monos -T8 Pre / Quad 2805... & lots of vintage gear/ over 700 mint first pressings 5k+ Vinyl
Find all posts by this user
Quote this message in a reply
2016-03-17, 11:18
Post: #22
RE: Stamford DC Motor?
I must admit i was surprised at your initial opinion.. i assume you took accurate speed tests of accuracy on the turntables first ? as this would be the first test i would expect from any professional assessing a motor and power supply...
Remember this is the identical motor as used in the radical with a superior control unit and a better damped motor housing if so it would be nice to see your data.. i am sure this would be a simple task for you.. and then thinking about it i thought it might be pertinent to call Gordon and ask his opinion of the comparison as he has not had the chance to reply himself... Gordon told me on the phone that in his opinion the lingo powered Akito based LP-12 Sounded overblown by comparison to the VP-12 Ekos Mober turntable so its interesting 2 opinions best bet for all is have a listen yourself i think the mober is a very special product... i have now finished modifications and will be fitting mober units at our premises working from the inner of the outer plater this is easily achieved and again brings improvements feel free to drop into Melton Sunday and hear for yourself ... picture 1 marking plater segments to within 1 degree picture 2 sensor spun 180 and mounted on scotch pads i will be implementing a new mounting point into the Orpheus top plate as standard and the new Krown platter will be pre printed on the inner edge making it a simple diy job..
[Image: mod%201.jpg]


http://i1231.photobucket.com/albums/ee51...od%202.jpg

LP-12 VP-12s/ SME 10 & 20/ Hanss T 30 / TD-150s / Ming Da 2006 / Vincent PH-700 / Ming Da MD7-SE / Vincent 995 Monos -T8 Pre / Quad 2805... & lots of vintage gear/ over 700 mint first pressings 5k+ Vinyl
Find all posts by this user
Quote this message in a reply
2016-03-17, 11:27
Post: #23
RE: Stamford DC Motor?
[Image: mod%202.jpg]

LP-12 VP-12s/ SME 10 & 20/ Hanss T 30 / TD-150s / Ming Da 2006 / Vincent PH-700 / Ming Da MD7-SE / Vincent 995 Monos -T8 Pre / Quad 2805... & lots of vintage gear/ over 700 mint first pressings 5k+ Vinyl
Find all posts by this user
Quote this message in a reply
2016-03-18, 06:44
Post: #24
RE: Stamford DC Motor?
(2016-03-17 11:18)Debussy Wrote:  I must admit i was surprised at your initial opinion.. i assume you took accurate speed tests of accuracy on the turntables first ? as this would be the first test i would expect from any professional assessing a motor and power supply...
Remember this is the identical motor as used in the radical with a superior control unit and a better damped motor housing if so it would be nice to see your data.. i am sure this would be a simple task for you.. and then thinking about it i thought it might be pertinent to call Gordon and ask his opinion of the comparison as he has not had the chance to reply himself... Gordon told me on the phone that in his opinion the lingo powered Akito based LP-12 Sounded overblown by comparison to the VP-12 Ekos Mober turntable so its interesting 2 opinions best bet for all is have a listen yourself i think the mober is a very special product... i have now finished modifications and will be fitting mober units at our premises working from the inner of the outer plater this is easily achieved and again brings improvements feel free to drop into Melton Sunday and hear for yourself ... picture 1 marking plater segments to within 1 degree picture 2 sensor spun 180 and mounted on scotch pads i will be implementing a new mounting point into the Orpheus top plate as standard and the new Krown platter will be pre printed on the inner edge making it a simple diy job..

Ooooo!! Get the Popcorn out for this one!!!TongueTongue

Tase.

Linn stuff.....Klimax Radikal, Urika, Ekos SE, Kandid, Uphorik, 2 Keel's,2 LP12's......and a Partridge (somewhere) in a Pear tree!!
Find all posts by this user
Quote this message in a reply
2016-03-18, 22:36
Post: #25
RE: Stamford DC Motor?
(2016-03-17 11:27)Debussy Wrote:  [Image: mod%202.jpg]

Mark,
It looks really good with the stainless steel bolts, but IMO one degree deviation is too much. I think to have one marker per revolution like Radikal is by far the best, so deviation caused by the position of marker is zero.

Matt

LP12 / Exposure / JBL3677
Find all posts by this user
Quote this message in a reply
2016-03-18, 23:07
Post: #26
RE: Stamford DC Motor?
I'm going to moving the reader to the inside of the main platter today and I will let you all know how well it works.

Robert
LP12 /Sole Sub-Chassis VIII+In Soles/Mober DC&PSU /Roksan Nima&sKale/ZYX R50 Bloom3/Whest PS30R
Find all posts by this user
Quote this message in a reply
2016-03-18, 23:35
Post: #27
RE: Stamford DC Motor?
(2016-03-18 22:36)matthias Wrote:  Mark,
It looks really good with the stainless steel bolts, but IMO one degree deviation is too much. I think to have one marker per revolution like Radikal is by far the best, so deviation caused by the position of marker is zero.

Matt

+1
Methinks Linn would have probably looked at all the options when designing the Radikal and concluded a single marker read every revolution to be the best "real world' option.

Tase.

Linn stuff.....Klimax Radikal, Urika, Ekos SE, Kandid, Uphorik, 2 Keel's,2 LP12's......and a Partridge (somewhere) in a Pear tree!!
Find all posts by this user
Quote this message in a reply
2016-03-19, 04:14
Post: #28
RE: Stamford DC Motor?
Well it is moved and it works it comes up to speed a little faster now.The speed runs prefect 33 1/3.4 marks for keeping the speed right works very well I feel better than only one would.


Attached File(s) Thumbnail(s)
   

Robert
LP12 /Sole Sub-Chassis VIII+In Soles/Mober DC&PSU /Roksan Nima&sKale/ZYX R50 Bloom3/Whest PS30R
Find all posts by this user
Quote this message in a reply
2016-03-19, 07:32
Post: #29
RE: Stamford DC Motor?
(2016-03-19 04:14)rkay5 Wrote:  Well it is moved and it works it comes up to speed a little faster now.The speed runs prefect 33 1/3.4 marks for keeping the speed right works very well I feel better than only one would.

Robert,
four marks work if e.g. laser engraved into the platter with absolute precision. In the case of the slightest deviation between the four marks you get much better results with one mark. I am sure that Linn tested more than one mark per revolution in the development of the Radikal like Tasebass mentioned and abandoned this. I would suggest to compare four versus one before launching the Mober.

Matt

LP12 / Exposure / JBL3677
Find all posts by this user
Quote this message in a reply
2016-03-19, 13:04
Post: #30
RE: Stamford DC Motor?
i would like to see a dr feickert reall time speed test of the radical to see how it compares in real time with stylus drag as the measurements i have published the + - 0.5 - 0.6hz it the best i have ever seen on any turntable remember i marked this up as a prototype i simply found placing tape on the inner where the belt runs unacceptable, the platers i produce will be printed by a specialist company and they will be totally accurate as the marks will be cnc' into the inner edge of the platter i am already taking about re writing the eprom so it reads 8 or 16 what maters to me is how it measures nothing more nothing less.. exciting times ok packed and off the the show.. have a good weekend all....

LP-12 VP-12s/ SME 10 & 20/ Hanss T 30 / TD-150s / Ming Da 2006 / Vincent PH-700 / Ming Da MD7-SE / Vincent 995 Monos -T8 Pre / Quad 2805... & lots of vintage gear/ over 700 mint first pressings 5k+ Vinyl
Find all posts by this user
Quote this message in a reply
Post Reply 


Forum Jump:


User(s) browsing this thread: 1 Guest(s)