OLD TV

[VK3FKRK]

Hi all
sometime ago i had a design to build up a cro using a tv , but with the shack clean out 2 years ago i think it got but in the bin , would anyone know where i could get one

ps dose anyone have some other use for the older tv sets

thanks for your time
ken

[VK2BLS]

Ken,
This may be of some use.
http://www.zyra.org.uk/oscope.htm

73 Darrell

[VK2XQ]

Have an AWA-Trinton colour TV here, we are still using until digital comes in fully, great colour, had it since 1994 although it was built prior, faithfull set, great sharp colour. If you want it then come and get it, as we are going to have to get a new one soon anyway, shame to see it end up in landfill. One of the few sets still working, made in Australia!

Long way to come though, I am in Sydney and you are in VK3...

Jack VK2XQ Sydney.

[VK3YE]

ps dose anyone have some other use for the older tv sets

An old TV can be useful in a kitchen renovation. Billy T James shows how at
http://www.youtube.com/watch?v=-rRyiidjU1o (1:58)




More seriously, if the TV doesn't have video in connections, you can add a video-RF modulator and connect it to a camera to make a CCTV system. Some digital cameras have video out connections that could be used.

Then there's the boards inside with salvageable parts even if the rest is chucked out. Capacitors, crystals, wire, fuses, etc may all be useful.

[VK5ZT]

Hi all

A CRO built from a TV would have limited application (ie audio only) due to deflection constraints.

I reckon the WIA should sponsor a competition for amateurs and experimenters to see who can build the most useful/functional/elegant piece of radio oriented equipment based solely on the components salvaged from an old analogue TV set.

Maybe different categories such as most useful, most complex, highest RF output (!!), most coverage/best receiver etc. etc.....

Now there's a challenge for the 'technical' hobby.......

Cheers

Tim VK5ZT

[VK5ZT]

Hi all

A CRO built from a TV would have limited application (ie audio only) due to deflection constraints.

I reckon the WIA should sponsor a competition for amateurs and experimenters to see who can build the most useful/functional/elegant piece of radio oriented equipment based solely on the components salvaged from an old analogue TV set.

Maybe different categories such as most useful, most complex, highest RF output (!!), most coverage/best receiver etc. etc.....

Now there's a challenge for the 'technical' hobby.......

Cheers

Tim VK5ZT

[VK5ZT]

EEEEEK...

I only posted once!!! For some reason it ended up being there twice!!!

Tim VK5ZT

[VK4GHZ]

I never quite understand why people want to muck around with things like this!
Unless you have lots of spare time, and place little value on your time?

There is quite a few second hand CROs on eBay right now, all in Australia.
http://www.ebay.com.au/sch/i.html?LH_It ... 86.c0.m283
Some have reasonable starting prices, and zero bids.

My analogue 2-channel CRO that cost $1,150 new in 1984 (quite a bit of coin back then!) is lucky to be worth $100 now.
The point is, you can get a lot of good (older) gear, for not much.
Two slabs of decent beer?
It will have more functionality, save a heap time, and be more useful than that EA kit.

[VK2FJCM]

I've always been interested in what application a CRO has in Amateur Radio.

I know it has some applications and in the hands of the knowledgeable probably quite a lot of applications but I have not come across an article or knowledge base that applies to amateur radio.

At the risk of being flamed I would ask for suggestions other than Google is my friend.

[VK7DR]

I've always been interested in what application a CRO has in Amateur Radio.

I know it has some applications and in the hands of the knowledgeable probably quite a lot of applications but I have not come across an article or knowledge base that applies to amateur radio.

At the risk of being flamed I would ask for suggestions other than Google is my friend.

Angelo, I suggest you get a copy of the ARRL handbook and read it. It is "the" amateur radio knowledge base.

In basic AR, oscilloscopes are used mostly to monitor signal qualities such as modulation effects, distortion etc. They can however, be used for most metering applications where not only levels but qualities are displayed such as frequency, wave shape, phase angles can be recorded. In "storage" scopes, the processes become even more useful, such as comparing digital words in real time and seeing errors, or error generating problems such as faulty wave shaping.

Used properly, and unlike Eddie McGuire, the CRO is a seriously useful tool.

[VK2FJCM]

Thanks Rob. I actually have a copy of the 2010 issue and have never thought to look this up.

Goes to show what good it does collecting dust on the shelf.

Thanks once again. Don't follow AFL but don't have to agree with your view!