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sitran12
Member
Last Activity: 08-05-2009, 04:29 AM
Joined: 05-29-2009
Location: Tel Aviv, Israel (GMT+2)
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  • sitran12
    replied to Need help! Identify an AC capacitor
    in General Capacitor Questions & Issues
    Re: Need help! Identify an AC capacitor

    >> I said that back in Post 2...

    Yeah, I liked the way you put it..

    It is a carbon-disc speed-control. But I don't really care for line noise (unless it can be hazardous) because now we only use the machine once every 2 months or so..

    I just got a gift from my aunt - another Brother machine . It's almost identical in model and age but the condition is much better, so I'm moving to the new machine and if anything funny happens - then its a whole new ride with you guys
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  • sitran12
    replied to Need help! Identify an AC capacitor
    in General Capacitor Questions & Issues
    Re: Need help! Identify an AC capacitor

    2 months later I wanted to share the final results - after speaking with our local Brother's lab technician I followed the technician's advice and removed the cap entirely. He says the cap is an old noise suppression part that is no longer needed.

    This solved the problem and the machine works perfectly.

    I know that from a safety point of view it might have been better to put on a Y capacitor, but I prefer to replace the entire foot pedal for 20$-30$ if any problem re-occurs.

    thanks everyone for...
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  • sitran12
    replied to Need help! Identify an AC capacitor
    in General Capacitor Questions & Issues
    Re: Need help! Identify an AC capacitor

    Thanks Toast, I'll stick to the safe side and follow your advice.

    I'll post the results once it's done (unless I get myself fried )
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  • sitran12
    replied to Need help! Identify an AC capacitor
    in General Capacitor Questions & Issues
    Re: Need help! Identify an AC capacitor

    No offense guys, but I'm still confused: 2 senior members tell me that I need either X or Y.
    also, this guy identified exactly the kind of pedal and circuit I had (right down to the carbon discs) but I didn't understand too much of his recommendation:
    [url]http://forum.allaboutcircuits.com/showpost.php?p=146859&postcount=28[/url]

    Q1: what about the metal bracket, isn't it used for grounding of some sort?

    Q2: can I damage anything if I use an X2 cap and add 2 Y caps just to be safe?
    ...
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    Last edited by sitran12; 05-31-2009, 09:55 AM.

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  • sitran12
    replied to Need help! Identify an AC capacitor
    in General Capacitor Questions & Issues
    Re: Need help! Identify an AC capacitor

    Thanks! you made my day!
    So that single capacitor served as 2 Y-style capacitors?

    Just for my education - I think I saw some combined XY caps with 3 leads. would they fit too?

    btw, would you mind if I share your response and schematic with the guys at [url]http://forum.allaboutcircuits.com/showthread.php?p=146838[/url] ?Re: Need help! Identify an AC capaci...my education -
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    Last edited by sitran12; 05-30-2009, 12:16 PM.

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  • sitran12
    replied to Need help! Identify an AC capacitor
    in General Capacitor Questions & Issues
    Re: Need help! Identify an AC capacitor

    Thanks Toast. You helped me a lot (I'm quite educated on safety caps by now ).

    anyway, I added the pics above. I think it's (b). You can see the capacitor connected in parallel to the line.
    The current flows from the brown to the blue (through the 'rheostat-like' pedal) and then into the motor and back to the blue of the mains (so the blue in the pedal is actually the line and not the neutral, I believe).
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  • sitran12
    replied to Need help! Identify an AC capacitor
    in General Capacitor Questions & Issues
    Re: Need help! Identify an AC capacitor (better pics)

    better pics:

    pedal:


    capacitor (with right cap popped out):
    you can see the grounding too...
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  • sitran12
    replied to Need help! Identify an AC capacitor
    in General Capacitor Questions & Issues
    Re: Need help! Identify an AC capacitor

    thanks,

    I posted a rough schematic of the layout:


    There's also a picture of the pedal:
    (you can also see on the right some of the film that went out of the cap)

    [url]http://img30.*************/img30/8871/280520091062.jpg[/url]

    The metal case was also grounded, so I'm not sure if this is an X or Y cap..

    will appreciate the help Re: Need help! Identify an AC capaci...of the layout:
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  • sitran12
    replied to Need help! Identify an AC capacitor
    in General Capacitor Questions & Issues
    Re: Need help! Identify an AC capacitor

    Btw, Toasty, I did some reading and I think I understand what you meant - this is a safety capacitor, right?

    I'm cross-posting this also on [url]http://forum.allaboutcircuits.com/showpost.php?p=146760&postcount=13[/url],

    happy dayRe: Need help! Identify an AC capaci...ount=13[/url],
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  • sitran12
    replied to Need help! Identify an AC capacitor
    in General Capacitor Questions & Issues
    Re: Need help! Identify an AC capacitor

    I appreciate it, but I don't suspect you ship overseas

    anyway, it's a very old Brother Mademoiselle, it looks like this:


    There isn't any model # on the machine or pedal, but from the manual I found on the net it is most likely a 606. But can be any of the models 461 761 606 607.

    Any help or advice will be greatly appreciated!
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  • sitran12
    replied to Need help! Identify an AC capacitor
    in General Capacitor Questions & Issues
    Re: Need help! Identify an AC capacitor

    Thanks, I was shooting in all directions

    I figured that the circuit board capacitor was too good to be true
    I don't think I have a chance at the repair shops around here - they'll rip me off or tell me to replace the entire pedal.

    Do I really need this exact kind (with insulated wire leads)? any special reason besides the current?

    I'm trying to avoid spending big $$$'s

    thanks,
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  • sitran12
    replied to Need help! Identify an AC capacitor
    in General Capacitor Questions & Issues
    Re: Need help! Identify an AC capacitor

    yes, I meant the speed control (foot control).
    The mains is connected to the motor which is connected to the foot control..

    The cap is inside the foot control (image of the control open and upside-down):
    (you can also see on the right some of the film that went out of the cap



    I also get a strange behavior: when I [B]don't press the pedal[/B] for a minute or so, the entire electricity in my house gets shortened!

    btw, I read somewhere that you can throw off this cap,...
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    Last edited by sitran12; 05-29-2009, 04:17 PM.

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  • sitran12
    started a topic Need help! Identify an AC capacitor
    in General Capacitor Questions & Issues

    Need help! Identify an AC capacitor

    Hi all,

    Sorry if this slightly off the mobo-caps topic .
    I need help identifying a strange capacitor (not a MOBO cap but an AC cap) in my sewing machine suppressor - apparently it has blown up some time ago and [COLOR=DarkRed]all the rolled film inside[/COLOR] just spilled out.
    The machine is an old Brother Mademoiselle with a foot suppressor (AC) and I was able to read the following markings off the cap:

    DFCT-3
    CAP 0.1 uF
    WV 250VAC
    ---------
    B.S. G13
    SANYO

    MY QUESTION - what do all these mean, and...
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