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Thread: Philips GP390 Ceramic cartridge NOS 1970s

  1. #21
    Join Date: Jan 2013

    Location: Bristol

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    I'm Justin.

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    Yeah Jerry and I are playing with our Apart amps now - in synch - but at different venues.

  2. #22
    Join Date: Oct 2011

    Location: Nothamptonshire

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    I'm Sharif.

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    Later today I'll try the unused GP390 I have in a Rega RB300 on a Thorens TD160 Super and I'll let you know how it sound.

    Then I'll try swapping them over between the Phonosophie and Thorens turntables, I should get some idea of the differences.

    Sharif.

  3. #23
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

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    I'm AudioAl'sArbiterForPISHANTO.

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    That'll be interesting, Sharif. Look forward to reading your observations

    Marco.
    http://www.thestainedglasscompany.com

    "A man is a success if he gets up in the morning and gets to bed at night, and in between he does what he wants to do" -- Milan Kundera.

  4. #24
    Join Date: Jan 2008

    Location: Forest of Dean, Glos & Cambrian mountains, Wales

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    I'm Jerry.

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    Right.
    Immediate excitement over new amp is now over. Back to the ceramic Philips 390.

    Increased VTF to 2,5g from 1.7g. Couldn't hear a difference.
    Added headshell mass: 2p + blu-tac. Couldn't hear a difference.

    ah well. No matter - will continue letting it run in.

    I'm using my only spare headshell - a tatty, scrawny aged thing. Where have my spares gone? Baffling. Maybe in my mid-Wales ranchette?
    Anyway, hopefully a decent one I ordered 2 days ago will turn up today.
    Getting a fair bit of hum. Not LOUD, but still noticeable. That's with both my Marantz and Audiolab 'stages.

    Also needle talk is very loud!! Well loud for needle talk, not loud loud, if you know what I mean!
    Can't hear it while music is playing at sensible level but very noticeable if the sound is off.

    The sound quality?
    It really is very good. Still a fair bit bright, but excellent detail and image focus. Loads of in-room you-are-there presence. Waaaay beyond its £37.50 price point. Definitely in the multi-£100 league.
    Loads more listening as well as running in to do. I've focused so far on classical choons - but a couple of Yello LPs will get an airing today.
    Jerry

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  5. #25
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

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    I'm AudioAl'sArbiterForPISHANTO.

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    Quote Originally Posted by jandl100 View Post
    Right.
    Immediate excitement over new amp is now over. Back to the ceramic Philips 390.

    Increased VTF to 2,5g from 1.7g. Couldn't hear a difference.
    Added headshell mass: 2p + blu-tac. Couldn't hear a difference.
    Oh well, worth a try!

    Still, that is *most* unusual... Can you think of any other cartridge you've used, which you've done that to, and there hasn't been a difference? I can't.

    A 'tracking force and mass-agnostic' cartridge? Weird, man... Anyway, it sounds good and is a Billy Bargain, so all is well

    Marco.
    http://www.thestainedglasscompany.com

    "A man is a success if he gets up in the morning and gets to bed at night, and in between he does what he wants to do" -- Milan Kundera.

  6. #26
    Join Date: Oct 2011

    Location: Nothamptonshire

    Posts: 146
    I'm Sharif.

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    I now remember how I settled on 2.1g it was to track a hot cut drum & bass record.

    Last night I tried tracking at different VTF from 1.7 - 2.5g and the sound did not change.

    There is a small tilt in the bass of about -1.5db @ 50Hz above 500Hz the GP390 has a flat response up to the tip resonance of 15.5kHz it then rises to about +1db to 20kHz.

    Jerry I could send you a passive adaptor to correct the -1.5db bass loss this will bring a more balance sound, this is what I use to correct the bass drop.

    It plugís in between your phonostage and your preamp as I donít think you will be able to compensate for it using a tone control.

    Sharif.

  7. #27
    Join Date: Jan 2008

    Location: Forest of Dean, Glos & Cambrian mountains, Wales

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    I'm Jerry.

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    Quote Originally Posted by Audioflyer View Post
    I now remember how I settled on 2.1g it was to track a hot cut drum & bass record.

    Last night I tried tracking at different VTF from 1.7 - 2.5g and the sound did not change.

    There is a small tilt in the bass of about -1.5db @ 50Hz above 500Hz the GP390 has a flat response up to the tip resonance of 15.5kHz it then rises to about +1db to 20kHz.

    Jerry I could send you a passive adaptor to correct the -1.5db bass loss this will bring a more balance sound, this is what I use to correct the bass drop.

    It plug’s in between your phonostage and your preamp as I don’t think you will be able to compensate for it using a tone control.

    Sharif.
    Ah - so I am not going deaf, Sharif, you agree that the sound really does not change with VTF! Phew.

    Thank you for the offer of the bass loss adaptor - I shall PM you my address!
    Jerry

    Spotify Premium streaming, Cambridge Audio 851D DAC/pre, Nobsound NS-02G amp, MBL116F
    or
    Spotify Premium streaming, Wadia 151 PowerDAC, MBL 116F.
    or
    Spotify Premium streaming, Cambridge Audio 851D DAC/pre, Pass Labs X150 power amp, MBL 116F.
    or
    >> Currently >>Spotify Premium streaming, Cambridge Audio 851D DAC/pre, LA Audio A-30 el84 integrated amp, MBL 116F.

  8. #28
    Join Date: Mar 2008

    Location: Dunfermline, Scotland, UK

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    I'm inthescottishmafia.

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    Sharif, what is this adaptor please, do you have a link?
    There are times when you canít do the sensible thing, when you canít act like a responsible adult at all; you just have to do whatever insane thing comes into your head. When bad people do it they end up murderers, when good people do it they end up heroes, and when the rest of us do it we end up looking like total idiots. But whenís that ever stopped us?

  9. #29
    Join Date: Jan 2013

    Location: Bristol

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    I'm Justin.

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    Quote Originally Posted by jandl100 View Post
    Ah - so I am not going deaf, Sharif, you agree that the sound really does not change with VTF! Phew.

    Thank you for the offer of the bass loss adaptor - I shall PM you my address!
    I'm with Marco - 2p piece some blu tak and no change in sound? Baffles me.

    That sort of thing will quite radically alter resonance. Strange indeed.
    Last edited by User211; 24-03-2016 at 18:31. Reason: Duff post WRT quotes/typos etc

  10. #30
    Join Date: Oct 2011

    Location: Nothamptonshire

    Posts: 146
    I'm Sharif.

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    Quote Originally Posted by Ali Tait View Post
    Sharif, what is this adaptor please, do you have a link?
    It's a home made adaptor the only penalty is a small insertion loss, I've attached the circuit here.



    Sharif.

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