Mains filter

Discussion in 'DIY Discussion' started by stumblin, Dec 15, 2003.

  1. stumblin

    stumblin Kittens getting even...

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    Well, I've taken the plunge and ordered the components for a rudimentray DIY filter/spike suppressor. I've pretty much used the design from TNT-Audio, changed the flavour of a couple of components but kept the principle pretty much the same.

    I'm building it in a plug top box which will also become the plug for a mains strip.

    Shopping list:

    Motor run 440V 8uF 1
    Y2 cap 100000pF 1
    X2 cap 0.1uF 1
    HV Res 1M 4
    Suppressor 250VAC 1
    PSU Box Large 1
    Open Grommet 1

    With a grand total of c. £13, compared to £40 for an RA silencer - how they'll compare would be interesting to see, but I'm too tight to buy a silencer to find out...

    Hopefully TNT won't mind me re-producing the image here - I'm in no way claiming responsibility for the design attached!
     
    stumblin, Dec 15, 2003
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  2. stumblin

    wadia-miester Mighty Rearranger

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    Keep us posted Stumblin, will be interesting to see if it squashes the dynamics in any way, if not then maybe you can shake up r/a's sector a little :) Wm
     
    wadia-miester, Dec 15, 2003
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  3. stumblin

    MO! MOnkey`ead!

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    Remember RA do offer their 30 (60?) day MOney back guarantee. May be worth getting one in just for testing after you've finished ;)
     
    MO!, Dec 15, 2003
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  4. stumblin

    Phill77

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    I made one a year or so back, thinking that with my PC, telly, etc plugged in nearby I would benefit a lot from it.

    Did not make one iota of difference to me, but for around a tenner it was worth a try.

    Hope you have better results, to date that is the only bit of diy I have done which I have not been impressed with.
     
    Phill77, Dec 15, 2003
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  5. stumblin

    stumblin Kittens getting even...

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    Oh poo.

    My components arrived in the post today. Well, when I say arrive, they were stuffed behind the drain pipe because no one was in :grrr:. Anyway, they arrived and weren't stolen. Aware that I won't be doing any DIY that night (we had guests, used to be I had friends over but now I live with a woman we have 'guests'), I open the packet anyway to take a quick inventory.

    It's all there - good thing. Alas some muppet (ie. me) hadn't check the dimensions of the components so one of the caps is bigger than the enclosure for the whole frikkin filter - bad thing :inferno: . This cap is a big bastard - easily 10 cm tall.

    Looks like I'm in the market for a bigger enclosure or smaller cap...

    You may now commence LYAO:NADowner:
     
    stumblin, Dec 19, 2003
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  6. stumblin

    technobear Ursine Audiophile

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    :newbie:

    :ffrc:

    ( I'd have probably done the same :shame: )
     
    technobear, Dec 19, 2003
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  7. stumblin

    Chea Johndle Bizarre Serpent Foomaster

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    Keep the cap... go for the bigger enclosure....

    Wot size is the cap....

    I have some Plastic boxes which may accomodate the said cap..

    Regards
     
    Chea Johndle, Dec 19, 2003
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  8. stumblin

    stumblin Kittens getting even...

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    I've checked the measurements on the maplin site and it's 75mm long X 35mm diameter. Seemed bigger when I got it out last night (fnar fnar).
     
    stumblin, Dec 19, 2003
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  9. stumblin

    stumblin Kittens getting even...

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    I'm sure that's not right - I'll measure it tonight. If you do have an appropriate enclosure I'll happily fling a couple of notes your way for it.
     
    Last edited by a moderator: Dec 19, 2003
    stumblin, Dec 19, 2003
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  10. stumblin

    stumblin Kittens getting even...

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    OK, this has gone a bit wrong. Seems that knowledge and skill are fleeting, 4 years out of uni and I've lost any electronics accumen I once had.

    Being the sensible chap I am, I have aborted this project. I'm not pissing about with mains voltages when I no longer have 100% confidence in my skills.

    I shall move from the 'constructor' group back to the 'consumer' group. In fact, I've already gone out and bought an Isotek Cleanline. Is verr nice :D
     
    stumblin, Dec 29, 2003
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  11. stumblin

    MO! MOnkey`ead!

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    :lol:

    I like your style mate :D

    Perhaps a bit of research and help from people on here and such, and get back to it? Would be interesting to see how you found the performance.
     
    MO!, Jan 4, 2004
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