Need info for database

[BarrySlisk]

Hello

I am working on a database (online website) which is to contain info about monitors, chassis..es...?, TV's, Tubes.

I want the possibility to search a tube model number for example and see what the yoke values are. What monitor and/or TV has tube been used in etc. What tubes are arcade chassis...es? compatible with.

I am working on the tube search functionality now:

I am no expert, so I will need some input.

For example. How many different Hantarex chassis are there? And what tubes/yoke values do they support?

I have the following Hantarex chassis but I am not sure if it is correct For example

Is the "Hantarex Polo 25-28" the same as "Hantarex Polo 25-28 dual sync"? Is there a mono-sync Polo 25-28?

Do European and US versions support same tube models?

• Hantarex Polo 20
• Hantarex Polo 25
• Hantarex Polo 25/28
• Hantarex Polo 25/28 dual sync
• Hantarex Polo 25, 25 khz
• Hantarex Polo 28, 25 khz
• Hantarex Polo Star 25-28 Trisync
• Hantarex Polo Star 28
• Hantarex Polo 2 Star 25/28 Trisync
• Hantarex Polo 2 25/28 Dual sync
• Hantarex Polo 2 Star 25/28 Trisync
• Hantarex MTC 9000
• Hantarex MTC 9110
• Hantarex MTC 900
• Hantarex MTC 900E (900/E ?)
• Hantarex Polo 14 (15 khz)
• Hantarex MTC 9000 10"
• Hantarex MTC 90
• Hantarex MTC 9000/A
• Hantarex Polo 1 33"
• Hantarex Polo 2 14" 15 khz
• Hantarex Polo 2 25/28 (119 degree)

So what models don't I have on my list? Got any relevant info?

THANKS!

BarrySlisk2018-01-04 10:29:43

 

[bonehead]

Good work but I’m sure there is already a site that shows tube compatibility

Will see if I can find a link somewhere.

 

[BarrySlisk]

I know of
http://www.junknet.net/donor-tvs and some random forum posts containing info.

 

[BarrySlisk]

Wow, this sure is disappointing. I did not imagine such a low interest...Maybe I should rethink doing this. Or maybe I should try KLOV......hmmm....BarrySlisk2018-01-03 22:03:48

 

[tb2000]

Only just noticed this! A few Hanty chassis you're missing are the MTC9000/A and the MTC90, also the MTC9000 10" and the Polo 14, although it's basically identical to a Polo 20. Also you need Polo 3 14"/17"/20" and 21" and Polo 1 33". I think there's also an mtc9110 33", and also there:s a Polostar 34" (and Polo 2 Star 34" which is the same). Polo 25" and 28" 15khz chassis are essentially identical. There also at least one Hanty vga only chassis but I can't remember which model it's based on at the minute! Oh, and there are also Polo 2 14" 15khz only chassis, and what called the Polo 2 25/28 15khz 110 degree chassis!

I'm fairly sure USA versions use the same tubes, and even if they don't (I've seen some makes used there that euro versions didn't) I'm sure they use yokes with the same readings on the horizontal and vertical windings.tb20002018-01-03 22:15:41

 

[John Bennett]

Wow, this sure is disappointing. I did not imagine such a low interest...Maybe I should rethink doing this. Or maybe I should try KLOV......hmmm....

Don't be disheartened, it sounds like something that would be useful to people in the long term.

 

[Jon-A-Tron]

Yes, this is potentially a great tool that will be used by a lot of people for many years to come. Stick at it.

I would like to contribute but I am just learning about monitors now and wouldn't want to corrupt the data with poor info or guess work. I have a 28" VGA Hanty and a 25" 15khz Hanty so can provide pictures of the tubes and chassis if needed.

 

[John Bennett]

Something I've wondered - people compare the resistance of the coils (as its do-able with a multimeter).
Are these coils subjected to an AC frequency when in operation? If so, then could measuring the impedance at a common frequency be a more reliable method of showing compatability? (Easier said than done obviously..). Or is just getting a close-ish resistance sufficient in the vast majority of cases?

edit: - ah, it's the bit that moves the beam, so y = 60Hz and x = 15kHz-30kHz? John Bennett2018-01-04 09:18:35

 

[BarrySlisk]

Are these coils subjected to an AC frequency when in operation? If so, then could measuring the impedance at a common frequency be a more reliable method of showing compatability? (Easier said than done obviously..).

I have read that impedance measuring is preferred but as most people only have a multimeter most use resistance. I have thought about supporting impedance but I just don't think I would get much data.

 

[BarrySlisk]

There are so many Polo's it's confusing

Never heard of a Polo3...Hmm....will add to list. Thanks.BarrySlisk2018-01-04 10:30:39

 

[John Bennett]

You could build up quite a matrix of Polo's from the manual:
https://wiki.arcadeotaku.com/images/2/2b/Hantarex_Polo.pdf

 

[M K L]

I'm fairly sure USA versions use the same tubes, and even if they don't (I've seen some makes used there that euro versions didn't) I'm sure they use yokes with the same readings on the horizontal and vertical windings.

The bigger Polos don't use the same tubes for the simple reason that in Europe Hantarex used 25" tubes with 23" screens numbered A59 and 28" tubes with 26" screens numbered A66 whereas the American arcade market uses 26" tubes with 25" screens numbered A63. So for the US market Hantarex had to source tubes locally and they chose an RCA tube numbered A63ADT10X05 which has a lower impedance on the vertical yoke (less than 6ohm) and doesn't require pincushion correction, hence US Polos have a few different values in the vertical deflection circuit and no east-west board.

 

[BarrySlisk]

Good stuff M K L.
Thanks!

BarrySlisk2018-01-04 15:20:03

 

[BarrySlisk]

Although I thought that the A numbering system was european whereas the US labels the tubes llike this: 19VLUP22. So if they sourcedlocal tubes why the european model numbers?

http://https://wiki.arcadeotaku.com/w/CRT_designation_systems#American_System_.28EIA.29

BarrySlisk2018-01-04 15:33:40

 

[PaulSwan]

There are at least three versions of the MTC-900.

- The common standard one that the manuals all describe.

- A relatively rare one that uses a different LOPT. I have only ever seen one of this type that blew that LOPT and ended up scrapped as a result.

- One or more instances of one that uses the TDA2653 vertical/deflection IC like the MTC-900E. A lot of deflection circuit appears the same as the MTC-900E but still uses the MTC-900 LOPT, power & interface.

One of the two additional variations maybe known as MTC-900/A but I'm not sure which, suspect the latter.

There is also the MTC-900/E USA edition and as pointed out the MTC-90 "fire starter".

On the vector side, there is the monochrome vector monitor MTR-V. There is a colour vector one as well that uses the MTC-900 LOPT but I don't know the model name for that (MTC-V maybe?)

Paul.

PaulSwan2018-01-04 16:36:24

 

[M K L]

Although I thought that the A numbering system was european whereas the US labels the tubes llike this: 19VLUP22. So if they sourcedlocal tubes why the european model numbers?

http://https://wiki.arcadeotaku.com/w/CRT_designation_systems#American_System_.28EIA.29

The worldwide system that replaced all other systems also uses A for TV tubes and by the time the Polo was launched all US tubes were numbered according to that system.

 

[BarrySlisk]

Oh really...Interesting...I must google this.BarrySlisk2018-01-04 18:22:51

 

[M K L]

In the same link you posted.

 

[Bods]

It would certainly be a great thing to do, I was hoping to do similar at one point

If I had the time, I would of opened up every TV down the Tip and got the tube numbers etc and what TV's had what Tubes. shame all those old TV's are going so fast

 

[M K L]

Been doing that for 7 years. 6000 TVs opened. I am the database.