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  1. 15th February 2017, 02:47 AM #1
    Jackadder
    Jackadder is offline New Member
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    Default 16-32 drum sander HELP!

    Greetings, first post (that I remember) and it is a request for help.
    I bought a 16-32 drum sander, looks identical to a Ryobi wds1600 (& plenty of other 16" drum sanders), and have discovered this blown out part in the speed control:

    _DSC5306.jpg_DSC5308.jpgIMG_6264.jpg

    Does anyone have a similar machine? Can anyone please tell me what that badly damaged 3-legged thing is, or provide the full code numbers on it? Raring to get sanding, but held up by this little bugger.....
    Thanks!
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  2. 15th February 2017 02:47 AM # ADS
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  3. 15th February 2017, 08:10 AM #2
    elanjacobs
    elanjacobs is offline Taking a break
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    That looks like a mosfet, it controls the variable speed through voltage changes
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  4. 15th February 2017, 12:09 PM #3
    Jackadder
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    Thanks for that, gave me the clue to eventually Google my way to - BT136-600E-02 Triacs Sensitive Gate.
    Now to find one.....
    Thanks again
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  5. 15th February 2017, 03:35 PM #4
    groverwa
    groverwa is offline Member
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    Try JCAR Electronics
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  6. 15th February 2017, 05:03 PM #5
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    Mr Brush
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    JAYCAR (easy to buy from) or RS Components (not so easy to buy from....).

    RS Components looks like they have them;

    BT136-600E,127 | BT136-600E,127 NXP, TRIAC, 600V 4A, Gate Trigger 1.5V 25mA, 3-Pin TO-220AB | NXP
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  7. 15th February 2017, 07:26 PM #6
    Jackadder
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    Thank you for the replies.
    Yes, Mr B, I eventually spotted them at RS.....I have had the suggestion to up the ante, but I know nothing about electronics. Would this do the same job, but be more robust?

    http://au.rs-online.com/web/p/triacs/1777329/
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  8. 15th February 2017, 09:17 PM #7
    Lappa
    Lappa is offline Woodworking mechanic
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    The question is - why did it blow in the first place? How are the rest of the components on the board? Also the trigger current on the one above in your reply is twice that of the other which Mr Bush listed, which may mean that board components have to be changed
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  9. 17th February 2017, 11:32 AM #8
    Jackadder
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    Thanks, Lappa. Would it have overheated? Maybe attach a mini heatsink?
    I ordered the direct replacement part in the end.....
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  10. 17th February 2017, 11:52 AM #9
    elanjacobs
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    That hole in the top is for screwing to a heatsink
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  11. 10th March 2017, 08:35 AM #10
    Albert
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    too hard, too difficult,
    Get a proper sander (SCM) and guaranteed there will always be parts 30 years after it rolled out of the factory.
    SCM L'Invincibile si X, SCM L'Invincibile S7, SCM TI 145EP, SCM Sandya Win 630, Masterwood OMB1V, Meber 600, Delta RJ42, Nederman S750, Chicago Pneumatics CPRS10500, Ceccato CDX12


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