Re: Electrets (fwd)

[Steven Roys <sroys@xxxxxxxx>]

---------- Forwarded message ----------
Date: Sun, 18 Jan 2004 10:18:08 -0700
From: June Heidlebaugh <rheidlebaugh@xxxxxxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: Re: Electrets (fwd)

Matt: The original electrics were made with wax, but any insulating resin
like polyester ( fiberglass)  will make much more durable electrics. Any
flyback coil can provide more than enough voltage to charge them while the
resin hardens.Only voltage not power is required. A flyback circuit from a
old TV or monitor will give over 20  kV.
   Robert   H
----- Original Message -----
From: "High Voltage list" <hvlist@xxxxxxxxxx>
To: <hvlist@xxxxxxxxxx>
Sent: Saturday, January 17, 2004 2:13 PM
Subject: Electrets (fwd)


> Original poster: Steven Roys <sroys@xxxxxxxx>
>
>
>
> ---------- Forwarded message ----------
> Date: Sat, 17 Jan 2004 22:26:59 +1030
> From: Matthew Smith <matt@xxxxxxxxxx>
> To: High Voltage list <hvlist@xxxxxxxxxx>
> Subject: Electrets
>
> Hi All
>
> Anyone ever tried making electrets from wax, as per the November 1960
Scientific
> American 'Amateur Scientist' article?  (I'm not suggesting that I have
issues of
> SA from that long ago - it's all available on CD now.)
>
> About all I'd be able to get my hands on is DIY candle wax.  (Paraffin
wax, I
> guess.)  I thought that my 3kV insulation tester may make a suitable power
> supply for this.  (It's essentially a Variac and HV transformer.)
>
> Cheers
>
> M
>
> --
> Matthew Smith
> Kadina Business Consultancy
> South Australia
> http://www.kbc.net.au
>
>