Ok, this is a weird one. I'm in the midst of shipping all my stuff in a container to a South American country with 230v 50hz power. I have more than enough room in the container and want to take my Hitachi 35" TV with me.
I know the TV won't pick up anything over the air, but I've got a Samsung VCR that will receive local TV off air and do the conversion on the fly to something the TV will like better. Also own a whole bunch of DVD's and a player that will work with the TV just fine. In an ideal world where money was no object I'd replace the TV - but I won't get all that much for it here and a new one of similar size down there is darned expensive compared to what I paid here.
The owner's manual explicitly says don't connect it to a 50hz AC power source. Ok, so a plain-old transformer is out. I don't want to risk frying it.
So here's my plan. I'm looking for any responses, ranging from "You'll burn the house down" to "It'll work" or anything in between. "There's a better approach" might be welcome too. ;) Please respond to the group.
The TV draws 205 watts. To run it for a reasonable length of time - worst case lets say its on for six hours during a day and my inverter is 100% efficient I need 112.75 amp-hours of battery capacity - or in the real world about 225 amp-hours, right? I don't want to have to source gel-cell batteries though and I don't want to keep track of charge-discharge cycles.
Large capacity DC power supplies are expensive - except the computer ones. I found a simple hack that allows an ATX power supply to think its connected to a motherboard and turn on, and a 600W ATX power supply runs about fifty bucks - or way cheaper than the batteries and the charger. I'd ideally like to have a 1500 watt inverter - if I wire the power supplies in parallel do I need diodes to prevent backfeed? Is it advisable at all? Might one power supply be adequate? I'm envisioning that the computer power supply would be set to the 230V setting, I'd connect the ATX's 12v+ to the 12v+ on the inverter and the 12v- lead on the ATX to the 12v- on the inverter. If you're not familiar with ATX power supplies or their pinout see this website:I know I have to have a fuse on one of the leads too. I'm frankly not sure how to size it. I think I need to make it as small as the smallest-rated link in the chain, which would be 12v at 600W, right?
Thanks for any assistance anyone's willing to provide with this. -Tim