[Boatanchors] Carbon Mic Rejuvination

[J. Forster]

That's why I called it an energy modulator. I am on first name terms with
the Three Laws.

-John

==================


> As a newcomer to the list, I hate to be argumentative, but no passive
> element has Power Gain..  By definition, Power Gain is some expression of
> Power Out divided by Power in where this number must be more than one, or
> the db expression of same.
>
> As a physicist, and electrical engineer, I can tell you that no passive
> element has gain, because the laws of physics would be violated.
>
> We all know that Pin = Pout in a line transformer for instance. (Less of
> course any small losses)... But Pout cannot be more than Pin.
>
> There has to be "Conservation of energy" in any system ....which basically
> says there is no free lunch.  If you do not apply external power - like in
> a
> supply to an amplifier, then a passive element like a water valve, or a
> passive modulator like a carbon mic, cannot have gain.
>
> Sorry....just could not let that misunderstanding and misstatement pass
> without comment.  Perhaps you are confusing "Force" for power...  They are
> not the same.
>
>
>
> Bill
>
>
>
> -----Original Message-----
> From: boatanchors-bounces at mailman.qth.net
> [mailto:boatanchors-bounces at mailman.qth.net] On Behalf Of rbethman
> Sent: Saturday, March 16, 2013 12:23 PM
> To: boatanchors at mailman.qth.net
> Subject: Re: [Boatanchors] Carbon Mic Rejuvination
>
> Someone would have to demonstrate the "power gain" or modulation of a gate
> valve.
>
> Bob - N0DGN
>
>
> On 3/16/2013 12:58 PM, J. Forster wrote:
>> Richard,
>>
>> More correctly, carbon mikes are 'energy modulators'- they modulate
>> the flow of electrical energy in response to a mechanical input...
>> very like a valve for water.
>>
>> They DO have power gain, as do valves for water or air.
>>
>> Best,
>>
>> -John
>>
>
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