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Thread: Timestep Power Supplies

  1. #1
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

    Posts: 110,012
    I'm AudioAl'sArbiterForPISHANTO.

    Question Timestep Power Supplies

    Before anyone starts, this isn't a dig at DC. Now and then Kevin B (from KAB USA) and I correspond via email, and quite out of the blue I received this message from him yesterday, in reference to the above:

    Quote Originally Posted by KAB USA
    Hi.

    I normally keep out of these things, but something came up that needs attention. I recently had a 'table brought to me that originally had a Timestep PS installed by Sound HiFi directly, according to the table's owner. What I found is important.

    The ground lug for the time step was attached to the Main motor PCB mounting screw in the far right side. This is completely wrong. It should be attached to the PCB mounting screw under the actual ground lug in the front left.

    By connecting it at any other screw, the current is now passing through the aluminium chassis, which is not only a poor conductor, it also creates all sorts of loop currents for the path is unpredictable.

    I am not sure how the actual instructions read when you purchase one of these power supplies, but they may be wrong as well. You might pass this on to anyone still using these power supplies just to be sure they have them connected in the best possible way.

    Kevin.

    KAB Electro Acoustics
    Preserving The Sounds
    Of A Lifetime
    www.kabusa.com
    Therefore, if anyone is using a Timestep PSU with their Techy, you may wish to check that it has been correctly installed, as Kevin has outlined above, and not as he originally found.

    Marco.
    Main System

    Turntable: Heavily-modified Technics SL-1210MK5G [Mike New bearing/ETP platter/Paul Hynes SR7 PSU & reg mods]. Funk Firm APM Achromat/Nagaoka GL-601 Crystal Record Weight/Isonoe feet & boots/Ortofon RS-212D/Denon DL-103GL in Denon PCL-300 headshell with Funk Firm Houdini/Kondo SL-115 pure-silver cartridge leads.

    Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp/Denon AU-310 SUT.

    Other Cartridges: Nippon Columbia (NOS 1987) Denon DL-103. USA-made Shure SC35C with NOS stylus. Goldring G820 with NOS stylus. Shure M55E with NOS stylus.

    CD Player: Audiocom-modified Sony X-777ES/DAS-R1 DAC.

    Tape Deck: Tandberg TCD 310, fully restored and recalibrated as new, by RDE, plus upgraded with heads from the TCD-420a. Also with matching TM4 Norway microphones.

    Preamps: Heavily-modified Croft Charisma-X. LDR Stereo Coffee. Power Amps: Tube Distinctions Copper Amp fitted with Tungsol KT-150s. Quad 306.

    Cables & Sundries: Mark Grant HDX1 interconnects and digital coaxial cable, plus Mark Grant 6mm UP-LCOFC Van Damme speaker cable. MCRU 'Ultimate' mains leads. Lehmann clone headphone amp with vintage Koss PRO-4AAA headphones.

    Tube Distinctions digital noise filter. VPI HW16.5 record cleaning machine.

    Speakers: Tannoy 15MGs in Lockwood cabinets with modified crossovers. 1967 Celestion Ditton 15.


    Protect your HUMAN RIGHTS and REFUSE ANY *MANDATORY* VACCINE FOR COVID-19!

    Also **SAY NO** to unjust 'vaccine passports' or certificates, which are totally incompatible with a FREE society!!!


  2. #2
    Join Date: Nov 2010

    Location: Yorkshire

    Posts: 9,325
    I'm Andrew.

    Default

    I remember fitting my old timestep PSU in exactly the same way. It's amazing how far my deck has come on from then!
    SS
    CD Teac VRDS25X(Audiotuned) DECK 1210 Mat Crystal Audio Mods MN Base/Bearing/Platter+Ebony armboard Feet Isonoe PSU Paul Hynes SR7EHD-27XL/DCSXL Ag DC lead/3 Stage Regs/Recap PCB+No Pitch/Strobe/Light ARM SME V(Kondo Ag Rewire&Tags) MC Cadenza Black FGS CABLES Arm Yannis SPD-4 IC Yannis 222 Litz+Ag bullets Power WAR PRE ATC SCA2 SPEAKERS ATC 50ASL STANDS Atacama PHONO Sugden Masterclass PA4 SUT Ortofon ST80SE POWER PSAudio P10

    VALVE
    PRE
    Croft Epoch(Modded) AMP Sondex S100 (Modded) SPEAKERS Tannoy 15"MG+RFC Warwick cabs+ Ref XO + Batpure supertweeters DECK Garrard 301 Mat Teunto Bearings 401(Bastin) Plinth Bamboo Arms 3009/3012 PSU Eagle+Tachometer MC Ag Meister II/FGS + Ortofon SPU MONO CABLES Arm Yannis 420.5 Litz+ SpeakerPC Tripple C+WBT-0681 Ag IC Oyaide FTVS-510 AgWBT 0110Ag Phonostages Paradise(4 Box Mega-Modded) / Croft Musicmaker



  3. #3
    Join Date: May 2008

    Location: A Strangely Isolated Place in Suffolk with Far Away Trains Passing By...

    Posts: 14,535
    I'm David.

    Default

    Wasn't this 'discussed' a long time ago? I'm sure I've seen it before a year or three ago.....
    Tear down these walls; Cut the ties that held me
    Crying out at the top of my voice; Tell me now if you can hear me

  4. #4
    Join Date: Nov 2010

    Location: Yorkshire

    Posts: 9,325
    I'm Andrew.

    Default

    three years ago, bloody hell.
    SS
    CD Teac VRDS25X(Audiotuned) DECK 1210 Mat Crystal Audio Mods MN Base/Bearing/Platter+Ebony armboard Feet Isonoe PSU Paul Hynes SR7EHD-27XL/DCSXL Ag DC lead/3 Stage Regs/Recap PCB+No Pitch/Strobe/Light ARM SME V(Kondo Ag Rewire&Tags) MC Cadenza Black FGS CABLES Arm Yannis SPD-4 IC Yannis 222 Litz+Ag bullets Power WAR PRE ATC SCA2 SPEAKERS ATC 50ASL STANDS Atacama PHONO Sugden Masterclass PA4 SUT Ortofon ST80SE POWER PSAudio P10

    VALVE
    PRE
    Croft Epoch(Modded) AMP Sondex S100 (Modded) SPEAKERS Tannoy 15"MG+RFC Warwick cabs+ Ref XO + Batpure supertweeters DECK Garrard 301 Mat Teunto Bearings 401(Bastin) Plinth Bamboo Arms 3009/3012 PSU Eagle+Tachometer MC Ag Meister II/FGS + Ortofon SPU MONO CABLES Arm Yannis 420.5 Litz+ SpeakerPC Tripple C+WBT-0681 Ag IC Oyaide FTVS-510 AgWBT 0110Ag Phonostages Paradise(4 Box Mega-Modded) / Croft Musicmaker



  5. #5
    Join Date: May 2009

    Location: gone away

    Posts: 4,870
    I'm joe.

    Default

    Thankfully I bought a proper turntable in the first place so needn't worry about whether the right lug is attached to the shin-bone, or whatever.

  6. #6
    Join Date: May 2009

    Location: gone away

    Posts: 4,870
    I'm joe.

    Default

    Quote Originally Posted by DSJR View Post
    Wasn't this 'discussed' a long time ago? I'm sure I've seen it before a year or three ago.....
    Technics PSU threads are like the repeats on Dave, they play the same episodes hundreds of times over.

    'Timestep ... Dubstep ... Mike New ... Paul Hynes .... Dave Cawley ... night and day differences ... pissed all over the stock item ... schematics ... right lug, left lug, shake it all about'

  7. #7
    Join Date: Feb 2008

    Location: Down South

    Posts: 2,413
    I'm Neal.

    Default

    Yeah and at the stupendously high power draw of the 1210 those unpredictable loop currents are really going to cause an issue in such a thin aluminium 1210 chassis
    Listening in a Foo free Zone...

    Only a Sith deals in absolutes.

  8. #8
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

    Posts: 110,012
    I'm AudioAl'sArbiterForPISHANTO.

    Default

    Quote Originally Posted by DSJR View Post
    Wasn't this 'discussed' a long time ago? I'm sure I've seen it before a year or three ago.....
    No idea, Dave. I'm just passing on some info, should it be of use to anyone. Like Andy, I've moved on since 'the dark old days', and now use a far superior PSU, designed by someone who actually knows what he's doing

    Marco.
    Main System

    Turntable: Heavily-modified Technics SL-1210MK5G [Mike New bearing/ETP platter/Paul Hynes SR7 PSU & reg mods]. Funk Firm APM Achromat/Nagaoka GL-601 Crystal Record Weight/Isonoe feet & boots/Ortofon RS-212D/Denon DL-103GL in Denon PCL-300 headshell with Funk Firm Houdini/Kondo SL-115 pure-silver cartridge leads.

    Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp/Denon AU-310 SUT.

    Other Cartridges: Nippon Columbia (NOS 1987) Denon DL-103. USA-made Shure SC35C with NOS stylus. Goldring G820 with NOS stylus. Shure M55E with NOS stylus.

    CD Player: Audiocom-modified Sony X-777ES/DAS-R1 DAC.

    Tape Deck: Tandberg TCD 310, fully restored and recalibrated as new, by RDE, plus upgraded with heads from the TCD-420a. Also with matching TM4 Norway microphones.

    Preamps: Heavily-modified Croft Charisma-X. LDR Stereo Coffee. Power Amps: Tube Distinctions Copper Amp fitted with Tungsol KT-150s. Quad 306.

    Cables & Sundries: Mark Grant HDX1 interconnects and digital coaxial cable, plus Mark Grant 6mm UP-LCOFC Van Damme speaker cable. MCRU 'Ultimate' mains leads. Lehmann clone headphone amp with vintage Koss PRO-4AAA headphones.

    Tube Distinctions digital noise filter. VPI HW16.5 record cleaning machine.

    Speakers: Tannoy 15MGs in Lockwood cabinets with modified crossovers. 1967 Celestion Ditton 15.


    Protect your HUMAN RIGHTS and REFUSE ANY *MANDATORY* VACCINE FOR COVID-19!

    Also **SAY NO** to unjust 'vaccine passports' or certificates, which are totally incompatible with a FREE society!!!


  9. #9
    Join Date: Sep 2009

    Location: Essex, UK

    Posts: 3,445
    I'm Andy.

    Default

    Quote Originally Posted by Joe View Post
    Technics PSU threads are like the repeats on Dave, they play the same episodes hundreds of times over.

    'Timestep ... Dubstep ... Mike New ... Paul Hynes .... Dave Cawley ... night and day differences ... pissed all over the stock item ... schematics ... right lug, left lug, shake it all about'
    System; Michell Gyrodec SE/ Orbe Clamp/ Gert Pedersen armboard mod/ HR PSU/ SME V / J7 Tonearm cable/Ortofon Cadenza Black// Jez Arkless Turbo nutter B------ /Trichord Dino+

    Amplification and loudspeaker set up is at the moment being split into two groups, comprising the following;


    1. Same sources as above; SONY TAF-770ES/SONY CDP761E/Cable Talk 3.1 loudspeakercable/ Harbeth Compact7ES2/ Stands

    2. Virtue Audio Sensation M451battery PSU, ClarityCaps upgrade/ Sensation M901/Russian PIO caps with Teflon bypass caps upgrade/ JT Dynamic PSU with various tweaks/ Connex Audio 5N Litz loudspeaker cable, Impulse H6 Loudspeakers.




















    Me so horny- Impulse H6 Horny

  10. #10
    Join Date: May 2010

    Location: Weymouth

    Posts: 3,463
    I'm John.

    Default

    What's a PROPER turntable then?

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