Televisions

[Mydexta]

Have heard that's its possible to buy a normal small screen TV and change the plug to a cigarette lighter plug and use in a car as they don't require much power??

Anyone know if this would be possible or just someone blowing stoor

 

[Hilly]

Have heard that's its possible to buy a normal small screen TV and change the plug to a cigarette lighter plug and use in a car as they don't require much power??

Anyone know if this would be possible or just someone blowing stoor

As long as you don't use your mobile while watching tv while driving you should be ok why do want a tv in the car ? I haven't watched the one in the house for long enough.

 

[bracken basher]

Not sure if you could do it with a normal tv but there are dual 240/12v televisions that you can buy for caravans, motorhomes, etc.
Just Google or look on eBay for "12v TV"

 

[Pennine Ploughing]

The voltage would be 12 instead of 240, that's like saying a lawn mower will pull a 5furrow plough

 

[roscoe erf]

no it will need to be a 12v/24v telly

 

[Mydexta]

Thought so, but I'm
Not very good at this electrical
Malarkey so I thought I'd ask

 

[Bloders]

I think many of the smaller Tvs have a transformer inside dropping the voltage to 12. So instead if buying an expensive 12v caravan TV. You can buy a normal one and power it from the tractor battery, joined up directly to the far side of the transformer iykwim

I was told this by a guy with a motor home so assume it's near right

Careful with electrics though.

 

[yorkie]

Just get an inverter and plug it in as normal can have a brew at same time

 

[Notquiteretired]

Make sure it's digital and not analogue as there will be lots of those in the 2nd hand market place.

 

[Tonym]

Some of the smaller TVs have the power pack in the lead so the TV runs off 12v.
Go to Currys or the like and look for the transformer in the power cord. Check on the manufacturers plate on the back of the TV that it does run off 12v.
Only problem is that if the engine is running you will have about 14.4 volts at the battery so it maybe wise to take out the 5 year warranty!

 

[Mydexta]

Some of the smaller TVs have the power pack in the lead so the TV runs off 12v.
Go to Currys or the like and look for the transformer in the power cord. Check on the manufacturers plate on the back of the TV that it does run off 12v.
Only problem is that if the engine is running you will have about 14.4 volts at the battery so it maybe wise to take out the 5 year warranty!

If you were to do that, would it be better to chop the 240v plug for a cigarette lighter plug and let it go through the transformer, that way it will never get more than 12v

 

[joe soapy]

If you were to do that, would it be better to chop the 240v plug for a cigarette lighter plug and let it go through the transformer, that way it will never get more than 12v

You probably should not be out without a responsible adult

 

[Notquiteretired]

If you were to do that, would it be better to chop the 240v plug for a cigarette lighter plug and let it go through the transformer, that way it will never get more than 12v

What about the current? Is it not the current that kills?

 

[multi power]

If you were to do that, would it be better to chop the 240v plug for a cigarette lighter plug and let it go through the transformer, that way it will never get more than 12v

no that wont work

 

[TheTallGuy]

Never ever connect equipment to a supply type that it is not rated for; most modern kit uses switched mode power supplies - if these are connected to an incorrect supply then some very nasty things can happen - I know because I used to design & safety test them. If want to use a mains TV or kettle then either get a 12V one or get an inverter, but make sure it's a "pure sine-wave" type as the "modified sine-wave" type can cause all sorts of issues. Also bear in mind your power requirements - a 100W device is going to pull around 8 amps from a 12V supply, a 2kW kettle will be around 167 amps - somewhat more than a cigarette lighter plug and associated wiring can handle.

What about the current? Is it not the current that kills?

It is the current that kills, but it needs the voltage to push it through - in terms of water/hydraulics think of Voltage as the pressure and current as the flow rate - hence why low voltage is seen as safer. A 12V car battery can deliver several hundred amps, but you are very unlikely to die by putting your fingers across the terminals as there isn't enough voltage/pressure to push enough current through your body, do the same with a mains plug and you are far more likely to die!

 

[Notquiteretired]

I'm good with voltage and current - used to fix rent TVs many moons ago and got a shock off the HT on one I was repairing. It caused my arms and hands to spasm rendering me unable to release - luckily the TVs were worked on at chest height (to save bending) and i had presence of mind just to step back and let the TV fall off the bench. I always try and work with electrics with one hand to reduce the risk of a shock across my chest.

 

[TheTallGuy]

I'm good with voltage and current - used to fix rent TVs many moons ago and got a shock off the HT on one I was repairing. It caused my arms and hands to spasm rendering me unable to release - luckily the TVs were worked on at chest height (to save bending) and i had presence of mind just to step back and let the TV fall off the bench. I always try and work with electrics with one hand to reduce the risk of a shock across my chest.

Been there, done that & had the burn marks to prove it more times than I care to remember (used to do repairs as a teenager) - HT off the back of the tube, live frames etc. - worst jobs were tweaking the scanning yokes and adjusting gains & IF tuning as you needed to see the picture - it took a few shocks before I twigged using a big mirror to see the screen whilst prodding around in the back rather than trying to stretch round or bobbing back and forth! Strangely I miss all the hassle of fixing electronics - these days it's a case of chuck it in the bin when it stops working.

 

[Notquiteretired]

Been there, done that & had the burn marks to prove it more times than I care to remember (used to do repairs as a teenager) - HT off the back of the tube, live frames etc. - worst jobs were tweaking the scanning yokes and adjusting gains & IF tuning as you needed to see the picture - it took a few shocks before I twigged using a big mirror to see the screen whilst prodding around in the back rather than trying to stretch round or bobbing back and forth! Strangely I miss all the hassle of fixing electronics - these days it's a case of chuck it in the bin when it stops working.

Don't get me started on the term "throw away technology"

 

[Mursal]

Don't chuck them until you see if there is a fix, some of the flat screens go down and sometimes they don't even need parts to fix them. Just go through a reset sequence. Especially if they wont turn on, or the ON light is blinking a fault code when you turn it on from cold. Capacitors are very poor quality and are cheap and easy to replace. You can see them split when you take the back off and look in.

As already said, just be careful of the high Voltage in the back.