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Re: Weird ideas
From: Mark S Graalman[SMTP:wb8jkr-at-juno-dot-com]
Sent: Thursday, December 04, 1997 10:35 AM
To: tesla-at-pupman-dot-com
Subject: Re: Weird ideas
Actually, IMHO there *really* is no such thing as
efficiency in a machine that draws power yet does
no actual work or provides no tangible benefits.
It really is work/fun input, fun output.
Mark Graalman
On Thu, 4 Dec 1997 08:07:30 -0600 Tesla List <tesla-at-pupman-dot-com> writes:
>
>From: John H. Couture[SMTP:couturejh-at-worldnet.att-dot-net]
>Sent: Thursday, December 04, 1997 12:43 AM
>To: Tesla List
>Subject: Re: Weird ideas
>
>At 05:36 AM 12/3/97 +0000, you wrote:
>>
>>From: Edward V. Phillips[SMTP:ed-at-alumni.caltech.edu]
>>Sent: Monday, December 01, 1997 1:14 PM
>>To: tesla-at-pupman-dot-com
>>Subject: Re: Weird ideas
>>
>>"" BTW, why bother with tubes? Frankly, I found that they are so
>incredibly
>>inefficient, think about this for a moment: First, you have to put
>enough
>>energy to "boil" enough electrons. Then, you are applying electric
>field
>>(energy) to constantly accelerate the electrons, not only did the
>electrons
>>did not slow down as they approach the anode, they travel at full
>speed. At
>>last, you stop the electrons and most of its energy become heat. Heat
>is
>>generated in both the "boiling" and "stopping" process, it sounds to
>me like
>>a electron welder."
>>
>> Some of the big tube-type broadcast band transmitters ran
>>at an OVERALL efficiency (power delivered to antenna divided by
>>power from the AC mains) exceeding 90%. It's no trick at all to
>>design and build a Class C tube amplifier with 75% efficiency, and
>>the filament/heater needn't use more than a few percent of the plate
>>input power.
>>
>>Ed
>>
>--------------------------------------------------------------
>
> Ed -
>
> What are the wallplug efficiencies including filament losses and
>connected
>as Tesla coils. How would these systems compare with Tesla coils with
>the
>same wallplug input ?
>
> John Couture
>
>
>
>