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Open Roads Forum  >  Tech Issues

 > Which inverter?

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pasusan

Northernmost PA

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Posted: 10/06/21 05:13am Link  |  Quote  |  Print  |  Notify Moderator

In our Roadtrek (Class B) we have an inverter that is used just to run the TV and the DVD player. We think it wrecked the TV. When I put our electrical checker on it there were just 101 volts and there was another message about open neutral.

We're looking to replace it with a new inverter - we know nothing about them and I do remember reading here about pure sine wave or something. [emoticon]

So - what size do we need for just those 2 items - how many watts - and should it be a pure sine wave one?


"I'm out here to enjoy nature -- don't talk to me about the environment!" ~Denny Crane

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Lwiddis

Near DVNP, California

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Posted: 10/06/21 07:34am Link  |  Quote  |  Print  |  Notify Moderator

Pure sine wave is the safest route and I’d suggest a 300 watt inverter for a TV and DVD if you don’t want look up their individual power needs.

This one has worked well for me for over a year — BESTEK 300Watt Pure Sine Wave Power Inverter Car Adapter DC 12V to AC 110V with 4.2A Dual…Amazon $50.


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theoldwizard1

SE MI

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Posted: 10/06/21 07:39am Link  |  Quote  |  Print  |  Notify Moderator

You DEFINITELY. Want a pure sine wave inverter. They cost a bit more, but are worth it. Lots of brands too choose from.

If all you are going to use it for is the DVD and the TV and maybe a laptop charger, 300W - 500W is plenty.

time2roll

Southern California

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Posted: 10/06/21 07:44am Link  |  Quote  |  Print  |  Notify Moderator

101 volts is probably due to MSW and is normal. Open neutral is also normal and will not hurt a thing. Most tvs have a brick to supply lower DC to the tv. Have seen some things run hot on MSW although for this it should not be an issue. Signal interference might be a bigger trouble but maybe not with digital signals today.

Anyway I recommend a 200 or 400 watt Go Power sine wave inverter.

https://gpelectric.com/products/400-watt-industrial-pure-sine-wave-inverter/


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pasusan

Northernmost PA

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Posted: 10/06/21 03:18pm Link  |  Quote  |  Print  |  Notify Moderator

Thanks for the input guys! Will look into a new one 300 - 500 watts...

Fisherman

Angus, Ontario, Canada

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Posted: 10/06/21 05:09pm Link  |  Quote  |  Print  |  Notify Moderator

I've had one of these for about 10 years now to power the TV and satellite receiver. Simple install and no issues. https://gpelectric.com/products/300-watt-pure-sine-wave-inverter/

deltabravo

Spokane, WA

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Posted: 10/06/21 06:04pm Link  |  Quote  |  Print  |  Notify Moderator

If the inverter produces a modified sine wave (MSW), you need a high quality volt meter that will measure TRUE RMS voltage. A run of the mill volt meter will always read MSW voltage as "low voltage"

I always use PSW (Pure Sine Wave) inverters in my recent RVs.


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