----- Original Message -----
From: "Jim" <jvpoll@DALLAS.NET>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Monday, February 11, 2002 1:12 PM
Subject: Re: [pic]: Can you amplify with a single 2n2222 ??


>    "Audio is ELF. An audio-frequency circuit still radiates
>     electromagnetic waves, just not very efficiently."
>
> Very incorrect in all but perhaps a very few ill-designed
> products. Most of us responsible for actual RF design
> don't call possible 'spuriuous emissions of AF energy' over
> 100 dB down from a 'box' "radiation of electromagnetic
> waves". Leakage flux perhaps (as from a power xfmr) - but
> not 'radiation'.

Sorry. I meant the electrical part of the amplifier, not the sound waves.
Should have said "an audio-frequency circuit will emit extreme low frequency
electromagnetic radiation as a side effect of its functioning."

/\/\/\/*=Martin

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