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Capacitor I.D. from the 1970's

Discussion in 'Datasheets, Manuals and Component Identification' started by Dancegirl84, Dec 15, 2012.

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  1. Dancegirl84

    Dancegirl84

    4
    0
    Dec 15, 2012
    Hi,

    Can anyone i.d. this capacitor from a 1970's turntable:

    [​IMG]

    MP Capacitor
    M15AML605U
    6 uF
    150WV A.C.

    01 theta symbol

    I am trying to find a suitable replacement :(
     
  2. shrtrnd

    shrtrnd

    3,823
    519
    Jan 15, 2010
    I don't know the manufacturer off the top of my head, they're probably not in business
    anymore. But what you have is a 6 microfarad, 150VAC electrolytic can with what are
    probably radial leads. It won't be hard to find an equivalent.
     
  3. Dancegirl84

    Dancegirl84

    4
    0
    Dec 15, 2012

    Any idea where from?
     
  4. davenn

    davenn Moderator

    13,865
    1,956
    Sep 5, 2009
    any electronics parts supplier

    digikey, mouser, element14, RS components, maybe even Rat Shack if they still have components

    Dave
     
  5. Raven Luni

    Raven Luni

    798
    8
    Oct 15, 2011
    The MP could stand for metalised polypropylene. I've never seen one in a metal can though.
     
  6. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,497
    2,839
    Jan 21, 2010
    The replacement part is likely to be far smaller, possibly brightly coloured, and overall totally dissimilar in appearance.

    If you want to retain a "vintage" appearance, take the old device and remove the innards, and place the new capacitor inside the old housing.

    (Another question is "why do you think it has failed", but I'll presume that you are certain of it)
     
  7. Dancegirl84

    Dancegirl84

    4
    0
    Dec 15, 2012
    Thank you for the replies, the capacitor hasn't stopped working but after almost 40 years I thought it might be prudent to replace all the components involved with feeding the motor; a small PCB with one resitor, one fuse and one capacitor plus this can capacitor directly inline to the motor.

    Fuse = 500mA

    Resistor = brown colour, 1 = yellow, 2 = purple, 3 = gold and 4 = silver

    PCB Cap = 0,047uF 250v MP

    and this large can capacitor.

    The motor is 4 pole synchronous.
     
  8. Raven Luni

    Raven Luni

    798
    8
    Oct 15, 2011
    The resistor is 4.7 ohms with a +/-10% tolerance. Given the low value and the fact that the voltage across it is unknown, make sure to choose a replacement rated for at least a few watts A standard 1/4W resistor will likely give you rice crispies (snap crackle and pop).
     
  9. Dancegirl84

    Dancegirl84

    4
    0
    Dec 15, 2012
    I have searched all of the electronic component suppliers mentioned and none of them have a 6uF 150vAC capacitor of any kind :confused:. Am I reading the letters correctly on the side of this capacitor?
     
  10. davenn

    davenn Moderator

    13,865
    1,956
    Sep 5, 2009
    a 4.7 uF will be close enough, those styles of caps generally have broad tolerance ranges

    Dave
     
  11. davidcr85

    davidcr85

    3
    0
    Dec 30, 2012
    MP= Motor Power capacitor.

    This site can help you find a solution

    http://www.antiqueradios.com/forums/viewtopic.php?f=19&t=198223
     
  12. tedstruk

    tedstruk

    475
    7
    Jan 7, 2012
    this must be motor start capacitor. motor start caps that are 110v, are often rated at 150v. I would assume the 6microfarad mark to be just that 110v 6uf cap for motor start. <deleted bad info>
     
    Last edited by a moderator: Jan 4, 2013
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