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Capacitor I.D. from the 1970's

Dancegirl84

Dec 15, 2012
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Hi,

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

cap1ad.jpg


MP Capacitor
M15AML605U
6 uF
150WV A.C.

01 theta symbol

I am trying to find a suitable replacement :(
 

shrtrnd

Jan 15, 2010
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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.
 

Dancegirl84

Dec 15, 2012
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Dec 15, 2012
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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.


Any idea where from?
 

Raven Luni

Oct 15, 2011
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The MP could stand for metalised polypropylene. I've never seen one in a metal can though.
 

(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
Moderator
Jan 21, 2010
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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)
 

Dancegirl84

Dec 15, 2012
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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.
 

Raven Luni

Oct 15, 2011
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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).
 

Dancegirl84

Dec 15, 2012
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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?
 

davenn

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

Dave
 

tedstruk

Jan 7, 2012
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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>
 
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