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CTV Chinese arcade monitor chassis

 
WayneD
(@wayned)
Busy V-Ratter Registered

 

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Something interesting that I got from Aliexpress, a universal arcade monitor chassis. I'm into retro video games anyway but I wonder if this could be used to possibly substitute certain parts of a rare/unobtainable TV chassis.

One thing to note is that arcade monitors were mostly rejected TV tubes that were deemed good enough for video games so as long as the yoke resistance is ok and the tube has the correct number of pins (which can be specified when ordering) most in-line gun tubes should work with this. The chassis accepts a standard RGB input and sync.

The tube I'm using in this case is a 28" Thomson from an abandoned 2002 Samsung TV with a dead lopt. The chassis needs a 110 volt supply and an isolating transformer but a 240-110 volt step-down transformer serves both functions. The chassis comes with zero instructions and all the controls are in Chinese but Google translate certainly helps here!

 

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Topic starter Posted : 18/11/2021 9:06 pm
Alex728 and Nuvistor liked
crustytv
(@crustytv)
Vrat Founder Admin

Hi Wayne, very intriguing was it overly expensive, I guess no circuit included as well?

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Posted : 19/11/2021 3:19 pm
WayneD
(@wayned)
Busy V-Ratter Registered

@crustytv it was about £35 with shipping. It does include leads for the yoke and RGB connection but that's about it. No schematic or instructions. It doesn't have any safety shut down so if you were to disconnect say the yoke it would still happily supply HT and burn a line or dot into the screen, although that could be an advantage if you're substituting circuits in a TV.

When ordering it'll ask how many "feet" which is actually referring to how many pins the tube has.

Link to the item:

https://www.aliexpress.com/item/4000018945526.html?spm=a2g0o.productlist.0.0.5c0b62720o64jd&algo_pvid=347d6cf4-7b67-4dfb-8562-9276f6cf21ca&algo_exp_id=347d6cf4-7b67-4dfb-8562-9276f6cf21ca-0&pdp_ext_f=%7B%22sku_id%22%3A%2210000000044177976%22%7D

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Topic starter Posted : 19/11/2021 5:57 pm
crustytv
(@crustytv)
Vrat Founder Admin
Posted by: @wayned

it was about £35 with shipping

Wow! That's ridiculously cheap.

Posted by: @wayned

It doesn't have any safety shut down so if you were to disconnect say the yoke it would still happily supply HT and burn a line or dot into the screen, although that could be an advantage if you're substituting circuits in a TV.

No degauss either, still at that price who's complaining, and one can always mod away.

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Posted : 19/11/2021 6:44 pm
WayneD liked
Lloyd
(@lloyd)
Noble V-Ratter Registered

I've got 2 21" FST tubes in my lock up if anyone fancies having a go!!

Regards,

Lloyd.

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Posted : 19/11/2021 7:29 pm
crustytv
(@crustytv)
Vrat Founder Admin

Great offer Lloyd, personally I've got way too many projects to dabble with and keep me occupied for the foreseeable future. It will however be interesting to follow Wayne's exploits and any others who fancy having a play. At £35 delivered, it must be worth a go to someone, I would have thought this would be right up your street Lloyd.

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Posted : 19/11/2021 7:46 pm
Lloyd liked
WayneD
(@wayned)
Busy V-Ratter Registered

I've found a YouTube video where someone tries out the 25" chassis.

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Topic starter Posted : 19/11/2021 8:50 pm
Lloyd
(@lloyd)
Noble V-Ratter Registered
Posted by: @crustytv

, I would have thought this would be right up your street Lloyd.

It most certainly is! I'm on the look out for a chassis for a smaller tube first though, I've still got that brand new 7" colour tube that Brian kindly gave me a good few years back which I'd love to make use of. Certainly a great idea for someone who likes the idea of making their own design Tv/monitor!

Regards,

Lloyd.

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Posted : 19/11/2021 9:04 pm
mfd70
(@mfd70)
Active V-Ratter Registered

Ali -Express marketing algorithms(!) must work reasonably well since I've been receiving emails inviting me to purchase one of these for the last few weeks, the costs seem to be between £19 - £28 without postage.

I might get one to look at.

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Posted : 20/11/2021 1:18 am
Doz
 Doz
(@doz)
Noble V-Ratter Registered

Make sure your transformer is isolating and not an auto-transformer! 

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Posted : 22/11/2021 5:04 pm