Re: [TSCM-L] {1679} New widgit

From: Michael Dever <d..._at_bigpond.net.au>
Date: Sat, 2 Jun 2007 10:13:11 +1000
Hi Marty

I like the idea... However, instead of having a standa= rd US power cable attached, have you thought about putting an IEC mains con= nector on your box so that anyone can use whatever mains cable configuratio= n applies in their own location?

Regards
Mike
On 2 Jun 2007, at 4:13= , Marty wrote:


Hi Gan= g

It has alw= ays annoyed me that there was an obvious "hole" in my
p= roduct line...  being able t= o listen to raw audio on the AC power
line.  Back in the old days that void was co= vered by the Xetron SPL-60
comb filter/amp.   I recently bought a couple on eBay fo= r around
$40.00 so I could play with them.  Impressive... but not THAT
impressive... then again, it is "old" technology now.  Thanks to the
int= roduction of switched capacitor filters, getting rid of the 50/60
Hz AC could be realitively easy.  I tried my hand at developing a
produc= t that would do the job and here it is... http://www.martykaiser.com/1059af~1.htm
.   The 1059AF is a = highpass filter with cutoff at 400 Hz.  At 50/60
Hz the attenuation is well over -1= 50 dB.   Gain is 1 (unity). =   I
have= n't priced it out yet but it looks like it will be around US
$210.00.

Onward, Marty

Michael J. Dever CPP PSP

Dever Clark + Associat= es
GPO Box 1163
Canberra ACT 2601
Australia

Voic= e: +612 6254 5337
M= obile: +61419 252 839
Email: d..._at_bigpond.net.au

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