It remains a complete mystery to me why we do not have 3 phase power in all
homes (as suggested by Tesla).
With three phase poser, rectified DC power supplies could operate with
virtually no filter capacitors (hint hint, no ESR losses). Electronics would
be more reliable and efficient, and produce less waste heat.
Motors would always start the right direction (once bumped for phase) so would
never need start windings. They would operate more efficiently too.
Only politics, and the relentless battle that power companies wage every day to
avoid capital investment in new power delivery apparatus. Instead, we get
goaded into buying “more efficient” appliances at higher prices. Then the power
companies complain to the PUC that the efficient appliances have caused them to
sell less electricity so they need a rate increase to make up the shortfall.
Meanwhile your time to break even on your new appliance purchase just got
longer by a factor of 10 or so.’Pretty neat business model when you have the
PUC on your side…
Full wave bridge rectified three phase power only droops about 3% between
phases. This is good enough to obviate the need for any filter capacitors in a
DC power supply since a simple active linear regulator after the rectifier can
produce virtually perfect DC for use in electronic devices.
Tesla had it right long before these issues became prominent.
Gary
PS: Many RF generators for industrial applications (plasma etching, plasma
sputtering and so on) operate from three phase power. Often there is not even
need for a power transformer. The 208 3 phase is rectified and directly applied
to the collectors of very high power RF amplifiers to offer very pure power at
1000 watts or more in an RF deck that weighs maybe 20 pounds. No transformer,
no filter capacitors, no switching supplies, what more could you ask for?
> On Aug 23, 2016, at 8:48 AM, rick@dj0ip.de <Rick@DJ0IP.de> wrote:
>
> I agree. I am also a great fan of Tesla.
> Without Nikola, instead of a.c., we would probably have d.c. in evey
> household...
> and IMO we already have too much D.C. mixing in with our private lives.
> ;-)
>
> (Kim was right.)
>
> 73 - Rick, DJ0IP
> (Nr. Frankfurt, Germany)
>
>
>
> -----Original Message-----
> From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of Gary J
> FollettDukes HiFi
> Sent: Tuesday, August 23, 2016 2:49 PM
> To: Discussion of Ten-Tec Equipment
> Subject: Re: [TenTec] Slightly OT: Sunspots for propagation? Who needs 'em?
>
> Lest we forget… In the late 1890’s, Nikola Tesla proposed that we ionize the
> entire rarified upper atmosphere for two purposes. First, it would be a means
> to carry significant electric current without wires. Secondly, it would
> always be daylight. No more dark alleys and do on…
>
> Never mind the impact on sleep cycles etc.
>
> Tesla’s invention of radio had not yet advanced to the point at which anyone
> understood about radio wave reflection from upper atmosphere levels.
>
> I am a big Tesla fan but this idea was from the stratosphere! Excuse that pun
> too!
>
> Gary
>
>
>> On Aug 23, 2016, at 6:18 AM, <km2km@twc.com> <km2km@twc.com> wrote:
>>
>> Nice play ion words Joe
>>
>> I fear that this is going to be a long "thread."
>> Kris KM2KM
>> MERSCHROD
>> 123 Warren Road
>> Ithaca, NY 14850
>>
>> ---- Joe Papworth via TenTec <tentec@contesting.com> wrote:
>>
>> =============
>> No wonder the price of copper "Sky rocketed"
>>
>> Joe, K8MP
>>
>> Sent from AOL Mobile Mail
>>
>>
>> -----Original Message-----
>> From: A R <raf_3@msn.com>
>> To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
>> Sent: Tue, Aug 23, 2016 12:33 AM
>> Subject: Re: [TenTec] Slightly OT: Sunspots for propagation? Who needs 'em?
>>
>>
>>
>> Does anyone remember Project West Ford (or Project Needles) back in
>> 1961-1963? Something like 1/2 billion copper needles placed in medium earth
>> orbit to enhance military communications capability. Oops...
>>
>>
>>
>> Allen--W7GIF
>>
>>
>> ----- Original Message -----
>>
>> From: Joe Papworth via TenTec<<a
>> href="mailto:tentec@contesting.com?";>mailto:tentec@contesting.com</a>>
>>
>> To: <a
>> href="mailto:wb5jnc@centurytel.net";>wb5jnc@centurytel.net</a><<a
>> href="mailto:wb5jnc@centurytel.net?";>mailto:wb5jnc@centurytel.net</a>>
>> ; <a href="mailto:tentec@contesting.com";>tentec@contesting.com</a><<a
>> href="mailto:tentec@contesting.com?";>mailto:tentec@contesting.com</a>>
>>
>> Cc: <a href="mailto:k8mp@aol.com";>k8mp@aol.com</a><<a
>> href="mailto:k8mp@aol.com?";>mailto:k8mp@aol.com</a>>
>>
>> Sent: Monday, August 22, 2016 8:41 PM
>>
>> Subject: Re: [TenTec] Slightly OT: Sunspots for propagation? Who needs 'em?
>>
>>
>>
>> Hi Al,
>> Hmmm... They said it's "Early in the project."
>> I bet Cycle 25 beats them to the punch.
>> Joe, K8MP
>>
>> Sent from AOL Mobile Mail
>>
>>
>> -----Original Message-----
>> From: Al Gulseth <<a
>> href="mailto:wb5jnc@centurytel.net";>wb5jnc@centurytel.net</a>>
>> To: tentec <<a
>> href="mailto:tentec@contesting.com";>tentec@contesting.com</a>>
>> Sent: Mon, Aug 22, 2016 10:08 PM
>> Subject: [TenTec] Slightly OT: Sunspots for propagation? Who needs 'em?
>>
>>
>> That is, if the USAF has its way:
>>
>> <snip> Three teams are competing in a US Air Force project to improve
>> radio communication by directly seeding the ionosphere with plasma
>> <snip>
>>
>> New Scientist: US Air Force wants to plasma bomb the sky using tiny
>> satellites <a href="<a
>> href="https://www.newscientist.com/article/mg23130871-000-us-air-force
>> -wants-to-plasma-bomb-the-sky-using-tiny-satellites/"
>> target="_blank">https://www.newscientist.com/article/mg23130871-000-us
>> -air-force-wants-to-plasma-bomb-the-sky-using-tiny-satellites/</a>"
>> target="_blank"><a
>> href="https://www.newscientist.com/article/mg23130871-000-us-air-force
>> -wants-to-plasma-bomb-the-sky-using-tiny-satellites/</a"
>> target="_blank">https://www.newscientist.com/article/mg23130871-000-us
>> -air-force-wants-to-plasma-bomb-the-sky-using-tiny-satellites/</a</a>>
>>
>> If this happens I'm waiting for some contesting group to petition the
>> FCC to coordinate assistance from the USAF for their contest HI HI!!
>>
>> 73, Al
>> _______________________________________________
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>> href="mailto:TenTec@contesting.com";>TenTec@contesting.com</a?">mailto:
>> TenTec@contesting.com">TenTec@contesting.com</a</a>>
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