Jan and Group,
I think you are all in agreement actually... Jim's operative word there, is
Speakers when used, are assumed to be connected to active electronics, which
invariably include diode junctions, and are connected to long conductors which
are very good antennas, that conduct RF
into active electronics, sooner or later, and various forms of rectification
and amplification take place, resulting often in
the speaker, which in and of itself may not have rectification capability,
responding with sound, to strong RF fields.
Often in the US, you can buy a pair of computer speakers with active, powered
amplifiers inside for under $15 US.
At that retail cost, they can hardly be expected to incorporate good
engineering so as to resist strong RF fields.
All the best,
Pat Barthelow (916) 315-9271
> Date: Sat, 29 Mar 2008 18:33:34 +0100
> From: firstname.lastname@example.org
> CC: Amps@contesting.com
> Subject: Re: [Amps] SB220 "A" mods
> No it can NOT. I persist! I don´t think I have to explain what
> a speaker is, it has been clear to me for 50 years.
> 73 SM2EKM
> W7RY wrote:
> > Sure it can! A computer speaker system can surly rectify RF. The speaker
> > system contains and amplifier using an IC or several transistors,
> > voltage regulators and diodes. It also has wiring and an associated
> > power supply which also contains the above parts.
> > Please... Tell us why a computer speaker cannot rectify RF?
> > 73
> > Jim W7RY
> > ----- Original Message -----
> > *From:* Jan Erik Holm <mailto:email@example.com>
> > *Cc:* Amps <mailto:Amps@contesting.com>
> > *Sent:* Friday, March 28, 2008 11:38 PM
> > *Subject:* Re: [Amps] SB220 "A" mods
> > Sorry but no. A speaker can not "rectify" RF.
> > Lets not start another wives tale.
> > 73 Jim SM2EKM
> > ---------------------------------------------
> > bob finger wrote:
> > > Its the pc speakers rectifying.
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