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Re: hi power mobile


Harold Mandel
 

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Sirs,

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Only a rotating armature easily produces a sine wave.

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Most inverters produce square waves, but some expensive types

produce a ¡°modified sine wave.¡±

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If you were to visit a power plant you will see the main dynamo is

a D.C. generator that energizes a set of rotary alternators, spinning

at 60 Hertz in America and at 25 Hertz in the subways of NYC¡­.

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Hal Mandel

W4HBM

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From: ham_amplifiers@... [mailto:ham_amplifiers@...] On Behalf Of Robert B. Bonner
Sent: Monday, January 15, 2007 5:15 PM
To: ham_amplifiers@...
Subject: RE: [ham_amplifiers] hi power mobile

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I was looking this over, I noticed it is 50 Hz power.? Dometic sells massive quantities of product in the USA.? I have some of it on my RV.

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The 7KW unit is not that small, look at the photos it is a HV 3 Phase at least 230V alternator the size of a 200 AMP 12V unit.

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The ¡°BOX¡± is a inverter or external regulator.? They say it provides solid sine wave power.? SO you wont get that from a spinning alternator, so it is electrically making the sine wave in the box.

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Where¡¯s 60 CYCLE????? I¡¯d buy one.? I mean I suppose I could use 50 HZ power but really¡­?

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BOB DD

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From: ham_amplifiers@yahoogroups.com [mailto:ham_amplifiers@yahoogroups.com] On Behalf Of PA3DUV
Sent: Monday, January 15, 2007 3:43 PM
To: ham_amplifiers@yahoogroups.com
Subject: [Norton AntiSpam] [ham_amplifiers] hi power mobile

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This looks like the solution:

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The 7 kW version really appeals to me.

Although too small to reach my final goal (10 kW out /m) ist brings me a good step further.

Amazing how they squeeze 7 kW out of a compact alternator.

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Cheers, Dick

PA3DUV

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