Re: [TCML] DIY RFI Mains filters

["DC Cox" <resonance@xxxxxxxxxxxx>]

I made one for a pole xmfr operated unit when I could not find a commercial
unit that would handle the 75 Amps.
Send me an email off-list and I will send you the schematic.

You can make a very simple pri using 12 AWG copper wire (Home Depot).  Put
some slits on the edge of ordinary cardboard, stand them on edge, push your
wire in,
and then hit with a dab of hot glue.  As each turn comes around, strip it
for 1/2" and stagger the strip points slightly to avoid any arc over between
stripped points.

This makes for fast and easy initial testing and tuning before replacing it
with copper tubing.  Almost no cost and it allows you
to dial in your resonance point before spending your hard-earned cash on
copper tubing.

Dr. Resonance




On Fri, Dec 12, 2008 at 7:31 AM, Simon Dodd <Simon@xxxxxxxxxxxxxxxx> wrote:

> Hi everyone,
>
> Is it possible to make your own RFI mains filters and if so do you know
> where I can find schematics, if not what sort of equipment am I likely to
> find one in?
>
> Thanks for your help on my flat or conical primary question, I decided to
> go with a flat design and now have it laid out. I may need to get some more
> copper tubing though as I dont think I have enough turns to resonate with my
> secondary. Ah well.
>
> Thanks in advance for your help on this question
>
> Simon
> --
> Simon Dodd
> Director/ Technical Manager
> Yes Boss Music
> 46a Theydon Road
> London
> E5 9NA
> UK
> simon@xxxxxxxxxxxxxxxx
> 07828467411
> www.yesbossmusic.com
>
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