Jemmie
Well-Known Member
I have been advised by the SB forum to post here about builkding my own telly. What's the best approach to build my own on board TV?
Building my own telly
- Thread starter Jemmie
- Start date
Kilter
Well-Known Member
Well you could give us some more detail for heavens sakes! What are the design parameters? What usage do you expect and where and what is your powersource? You really should think these thing through before posting you know! Can't just swan in with a "I never buy anything when I can spend hours on end making something that is only half as good." attitude!
Vara
Well-Known Member
Strathglass
Well-Known Member
I did once build my own tele.
That was in 1950. ( I was 12 at that time)
I used a VCR97 ex mod radar reciever and built a TRF reciever at 56 mHz.
It recieved the local BBC transmissions.
The whole assembly took the whole area of a card table and when the coronation was on there was 12 people seated in my bedroom gazing at the 6" green screen.
Nowadays a laptop with a TV card.
Iain
That was in 1950. ( I was 12 at that time)
I used a VCR97 ex mod radar reciever and built a TRF reciever at 56 mHz.
It recieved the local BBC transmissions.
The whole assembly took the whole area of a card table and when the coronation was on there was 12 people seated in my bedroom gazing at the 6" green screen.
Nowadays a laptop with a TV card.
Iain
VicMallows
Well-Known Member
...............and I built a colour one early 70s. Still have the circuit boards which I rob for components from time to time. My 'scope was built around a VCR97 tube also!!
So far colmce seems the oldest amongst us /forums/images/graemlins/grin.gif
Vic
So far colmce seems the oldest amongst us /forums/images/graemlins/grin.gif
Vic
Spuddy
Well-Known Member
These TV cards. Local xpert said the cards needed a rooftop aerial and set top types were no good - obviously not if a lap top can do it. So will a card and a wee aerial in my PC work?
As for jemmie - a torch should let you do rabbit heads on the bulkhead, waggle the ears and everything.
As for jemmie - a torch should let you do rabbit heads on the bulkhead, waggle the ears and everything.
Spyro
Well-Known Member
"What's the best approach to build my own on board TV? "
Don't.
They're so cheap to buy nowadays from the like of Tesco or Asda.
just bought a DVD player from Asda for £20! how can they do that? and still make money from it?
Don't.
They're so cheap to buy nowadays from the like of Tesco or Asda.
just bought a DVD player from Asda for £20! how can they do that? and still make money from it?
Strathglass
Well-Known Member
Yes I agree but if there already is a laptop. A card will take up less space.
To answer the question from Spuddy.
What aerial you need really depends on where you are. Not really on the mechanical make up of the recieving system.
At some times may be possible to get a good picture with a 6" piece of wire stuck in the aerial socket. Other times it may be necessary to have a huge directional aerial 100' above the boat just to get a whiff of a picture.
It really depends on the local terain and distance from the transmitter.
But technology advances at such a rate.
In twenty years time or even less, most communications will be by satilite and TV the screen will hang on the wall like a picture. It will be viewable anywhere in the world with just a tiny aerial.
And the most important thing is that as it will be consumer driven the sets will be mass produced. They will then cost even less than present day receiving setups.
Iain
To answer the question from Spuddy.
What aerial you need really depends on where you are. Not really on the mechanical make up of the recieving system.
At some times may be possible to get a good picture with a 6" piece of wire stuck in the aerial socket. Other times it may be necessary to have a huge directional aerial 100' above the boat just to get a whiff of a picture.
It really depends on the local terain and distance from the transmitter.
But technology advances at such a rate.
In twenty years time or even less, most communications will be by satilite and TV the screen will hang on the wall like a picture. It will be viewable anywhere in the world with just a tiny aerial.
And the most important thing is that as it will be consumer driven the sets will be mass produced. They will then cost even less than present day receiving setups.
Iain
charles_reed
Well-Known Member
Use a PCMCIA
card in the laptop.
Hauppage make a number, depending on which system of TV you want to use.
With a reasonably modern laptop you can even watch DVDs.
Most cruisers I know buy a 2nd hand satellite dish and set-top box, that means that they can be insulated from learning the local language and just watch english-language stations.
Italian TV nearly achieves the lows you experience in the States and their radio stations are even more rubbishy.
Still what can you expect where the PM is an ex-TV space salesman.
card in the laptop.
Hauppage make a number, depending on which system of TV you want to use.
With a reasonably modern laptop you can even watch DVDs.
Most cruisers I know buy a 2nd hand satellite dish and set-top box, that means that they can be insulated from learning the local language and just watch english-language stations.
Italian TV nearly achieves the lows you experience in the States and their radio stations are even more rubbishy.
Still what can you expect where the PM is an ex-TV space salesman.
VicMallows
Well-Known Member
Re: Use a PCMCIA
Surely, the real question is why would anyone want to ? (watch TV, I mean)
Vic
Surely, the real question is why would anyone want to ? (watch TV, I mean)
Vic
Sans Bateau
Well-Known Member
Re: Use a PCMCIA
I expect the satisfaction of making one outweighs the satisfaction of watching one.
The answer may be to make one, test it, then dismantle it.
I expect the satisfaction of making one outweighs the satisfaction of watching one.
The answer may be to make one, test it, then dismantle it.
VicMallows
Well-Known Member
Re: Use a PCMCIA
Precisely!
Vic
Precisely!
Vic
BlueSkyNick
Well-Known Member
Re: Use a PCMCIA
My guess is that he wants to keep SWMBO and daughters happy, to help persuade them to spend time on the boat.
My guess is that he wants to keep SWMBO and daughters happy, to help persuade them to spend time on the boat.
TrueBlue
Well-Known Member
Heavens< I thought I was the only nutter who did that sort of thing. My homemade telly used a VCR 217 tube (much posher; not quite so green as the '97), with a gunge filled plastic magnifying glass on the front to make it look like a 9inch set. The receiver was similarly an "IF strip" from a radar set available from Proops or Smiths in Lisle Street. I always wore my school cap to avoid the tarts in Soho.
The most scary bit was the power transformer - 2.5kV for the tube - boy what I belt I used to get from that! Ah, happy days..
The sadness is that the current generation of kids just don't get the chance to build things from scratch. I learnt a hell of a lot from home electronics and the like.
The most scary bit was the power transformer - 2.5kV for the tube - boy what I belt I used to get from that! Ah, happy days..
The sadness is that the current generation of kids just don't get the chance to build things from scratch. I learnt a hell of a lot from home electronics and the like.
fiddle
Active Member
Bill Bryson said that he could walk along a beach for days and it would never occur to hime to use the sand to make glass. WHY oh why would anyone one to make a tele???
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