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Thread: Cheap upgrade for michell gyro

  1. #351
    Join Date: May 2016

    Location: wales

    Posts: 423
    I'm peter.

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    i recently had a question on static ,which i asked Jonathan Nye about he suggested to use a continuity tester and check the earths,,, make sure all the earths were in contact with the Chassis , the arm board /arm and bearing spindle,, i had removed the paint under the chassis where the screw comes through ,, this gave a better earth contact ,,,because the paint was acting like an insulator,, then checked the Arm board earth to the spindle,,, with a ceramic bearing fitted ,, to make sure the earth loop was completed ,,,it was,, so no problems with the earths to the phono stage and out down to the Russ Andrews Rf block and out to the earth in the house,, i then checked the TransRotor sweep arm that has an earth ,i was in for a surprise,, although the body was earthed the arm it self was not ,, i think this was due to the clear coat that was on the sweep arm, or the hole it sat in having some thing left in the hole after production,, i had to drill the hole deeper ,, Tap the hole under the top of the balance part of the arm , this now is earthed,, so no problems with static ,, even with the ceramic bearing ,,
    pete

  2. #352
    Join Date: Aug 2009

    Location: Staffordshire, England

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    I'm Martin.

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    I'm sure posterity will be fascinated.
    Martin



    Current Lash Up:

    Technics SLP1200 CD Player * Nelson Pass DCB1 Pre amp / Krell KSA50S Power amp * JM Lab Electra 926 loudspeakers *


    'You fool! To think that your ape-brain could contain the full knowledge of the Krell!'

  3. #353
    Join Date: Feb 2013

    Location: W Lothian

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    I'm Grant.

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    Quote Originally Posted by The Chronicals View Post
    Out of curiosity, why is that? Theres been some quite imo libellous statements made by Peter about Solidairs products on this thread, so surely that would mean open free discussion and if wanted, a public defence by Solidair?
    you also require to have your name posted in the box provided..
    Regards,
    Grant .... ؠ

    I've said it before and I'll say it again: democracy simply-doesn't-work
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  4. #354
    Join Date: May 2016

    Location: wales

    Posts: 423
    I'm peter.

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    after looking at the base of the spring holder i need help with a small but significant cheap upgrade,, i need to know the inner size of that ,, where the suspension adjuster goes through,, the one i have is 17.96 ,, to 17,97 ,, in diameter ,,
    the base of the spring holder hole only ,,


    The design uses the existing Michell Suspension pylons with a quick but cheap way to help stop wow,

    pete
    Last edited by gwernaffield; 09-05-2019 at 14:41.

  5. #355
    Join Date: May 2016

    Location: wales

    Posts: 423
    I'm peter.

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    and you will only need 2 cost with post off eBay will be about 25 ,., so you could say these are pete's suspension supports to go with the rest of the cheap upgrades,, they will be made to order and shipped when ready ,, no o-rings attached just the small delrin bush ,, which any one can make,,
    pete
    Last edited by gwernaffield; 09-05-2019 at 15:28.

  6. #356
    Join Date: May 2016

    Location: wales

    Posts: 423
    I'm peter.

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    The threads on a Michell deck are as follows,, the m6 for the stub adjuster , the half inch bsf for the feet ,, the bug bear is the adjuster is a M10 but which one??? there are 3 ,, M10 x1 M10 x 1,25 M10x.5 ,lucky i phoned Michell to find out M10 x 1
    The threads on the bearing , to stop you damaging the thread on the top spindle it is a 3/8 BSF,,you would need 2 half nuts to remove the spindle,, please do not use a pair of mole grips,, The top thread on the Orb is a multi start thread M6 ,, ( this may be incorrect as it is very hard to check with out the correct tools) ,
    the thread that holds the arm board is M5 ,,
    there is one more on the old suspension it is 3/8 bscy,,
    how the castle nut came about ,, on here ,,, no were else,, or the base,, they were done after trying to avoid the hooks,, holes, etc ,, i was asked could i not make the pylons( a design principle word ) accepted for use by every one, in the world,,
    after several hours i sat down with a friend and we went through how to avoid the holes,, etc and the suggestion of the slots were born after some large ciders and dodging my mates tractor ,,

    the problem was the cost ,, how to do the slots,, i asked several companies, to do them but the price scared the skin off my wallet,, so i bought a bench drill and a cheap compound Chinese table,, now how would you do the slots that you needed .buy an expensive dividing head ,, or do a quick and cost effective way of doing the slots, which i did ,, using a tooling Pin the blank was loaded and a printed version was used as the template ,,

    Follow the template and use a end mill to do the slots all were done like this until i could not longer do them ,, the rest have been done by the engineering company and audio company that i trust to do a very good job,,

    The pete's performance pylon kit was born, with bearings off eBay ( 4,50 each ) sorbothane used on some parts that is expensive ,, the bearing bush that is about 2 ,,
    all made the kit ,, which is only available through Truepointaudio,, or Truepoint precision engineers,, the design has again changed today with the addition of a flange off one of the members who i asked to look at this , with clear eyes and head, to be able to produce the kit with a std size, after the last set went to the UAE ,, the smallest ever ,, there was a concern that the base would pull threw the hole if they get smaller ,,,Michell has the wright to change there design on the deck and have done,,

    i have had to do the same to the bases,, due to Michell design changes,,
    There is another design being used by 2 members and my self ,, on test ,, for the future ,, the super base and nut are not quite there ,, and will not be sold for months to come,,

    in the meantime there is a STD version no measurement needed will give about 85% of the custom ones, price is set by true point on them ,, The std kit costing 130 plus post ,, which will NOT have the bearings ,, extra o-rings,,etc ,, a quality product , the main difference will be the fit will be a little bit looser than the custom ones which will have all the parts needed ,, that all the reviews have been raving about ,,and will not reduce the wow as much ,,
    i don't own the name it was given to them by the users,, i did not set the price it is Truepoint and he is happy at the margin ,, being machine shop and retailer ,, with help from the forum users this product has changed for the better, i thank the, first testers of the red o-rings,, and testers of the first slotted version , alot of other helpers all have benefited on the price and the hope they continue to help ,, with ways to improve them ,,

    i thank the designer and RR engineer for the latest fag packet drawing ,that is being built ,, as the std version,, the help all from AOS forum users,, ,, and even when it was not thought of as help From THE Chornicles who asked if i had the IP ,, well at the time i did not but after him having a go i paid the 60 and got the certificate so no one can copy the slots,, or the design unless they have helped on this forum so i thank him for that ,,,, Ynxx helped in one way ,, asking about the nut which forced me to look at redesigning the nut ,, once that was done , it was full steam a head,, so i thank him for that ,,

    the above small spring stop you can get made,, on eBay should be no more than the 25 ,, the diameter should be machined to the same hole diameter it goes into the hole being 10mm , the flange 2 mm thick , the length of the inner bush needs to cover 2 coils in the spring ,,
    this forces the spring to be straight up and not lean to one side,, the only draw back is you have to move the motor ,,
    atb pete
    Pete’s Lattice Truss Suspension upgrade for a JA Mitchell turntable.( mikes new name for these,,) but mine is pete's performance pylons, which use a lattice truss design system
    Last edited by gwernaffield; 11-05-2019 at 11:18.

  7. #357
    Join Date: May 2016

    Location: wales

    Posts: 423
    I'm peter.

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    Michell power supply internal pictures one NC never connected and one the standard with all the smoothing capacitors ,, please don't ask me how they work i do not know,, these are off my Orca Nc,, and the Delphini dual mono 4box,, phono stage,, they were sold as the large power supplies, with the michell /trichord kit ,, Trichord Research who i am grateful too for upgrading the 2 power supplies to NC for use on the Phono stage ,,

  8. #358
    Join Date: May 2016

    Location: wales

    Posts: 423
    I'm peter.

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    orca pre amp internals ,
    Last edited by gwernaffield; 09-05-2019 at 19:14.

  9. #359
    Join Date: May 2016

    Location: wales

    Posts: 423
    I'm peter.

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    delphini phono pre amp ,, internal dual mono 4 box

  10. #360
    Join Date: May 2016

    Location: wales

    Posts: 423
    I'm peter.

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    spoken to jonathan nye they went back to the steel ball,, as it is their design and can do what they want,, i respect that ,, every part of the deck is there design ,, each part is assembled with care and then shipped , the support has been great ,, the help has been the same,, i hope it will continue,,

    The use of the J A Michell name and their names for the decks are prohibited,, they own the Names For their decks,, it must be made clear that the Pete's Performance Pylons are made BY Truepoint Engineering and audio as an after market upgrade intended for use on J A MICHELL Suspended Turntables,, J A MICHELL DO NOT MAKE THEM have had no input to complete the design just to confirm the thread was a M10 x1

    atb
    pete
    Last edited by gwernaffield; 11-05-2019 at 11:33.

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