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Main => Monitor/Video Forum => Topic started by: perjmolsen on October 16, 2019, 08:36:45 am

Title: A66EHJ13x01 28" Tube compatible chassis
Post by: perjmolsen on October 16, 2019, 08:36:45 am
Hi  :D

I have got this JVC TV, Can this Thomson tube model A66EHJ13x01 be used as an Arcade monitor?

If i test the yoke pins I get these readings:

Pin 1-2
HR: 1.8 Ohm 1.48mH

Pin 4-5
VR: 9.2 ohm 26.87 mH

A search on tubular I am only able to find "A66E"
http://tubular.atomized.org/#s/A66E

If I do a google search I get this result:
https://wiki.arcadeotaku.com/w/File:A66EHJ13X01.jpg

A user writes that "You can add thomson A66EHJ13X01 platinum hantarex mtc 9110.
That's what I installed in my aerocity."
https://www.neogeo-players.com/t153-compatibilite-borne-platine-ecran-tv


So Is it possible to use the monitor on a Hantarex mtc 9110?  :notworthy:



Title: Re: A66EHJ13x01 28" Tube compatible chassis
Post by: princess prin prin on October 16, 2019, 08:52:21 am
That tube is the successor to the A66ECY13X01. It can be used where the latter was used. This includes MTC9110 and Polo.
Title: Re: A66EHJ13x01 28" Tube compatible chassis
Post by: perjmolsen on October 16, 2019, 08:53:20 am
That tube is the successor to the A66ECY13X01. It can be used where the latter was used. This includes MTC9110 and Polo.

Again  :notworthy:
Thanks  :cheers:
Title: Re: A66EHJ13x01 28" Tube compatible chassis
Post by: nonosto on July 05, 2022, 12:07:45 am
one question, maybe dumb, can I use ms9 - 29 chassis with this tube please?
Title: Re: A66EHJ13x01 28" Tube compatible chassis
Post by: grantspain on July 05, 2022, 05:20:17 am
one question, maybe dumb, can I use ms9 - 29 chassis with this tube please?
no as the yoke specs are way different
Title: Re: A66EHJ13x01 28" Tube compatible chassis
Post by: nonosto on July 05, 2022, 06:08:09 am
one question, maybe dumb, can I use ms9 - 29 chassis with this tube please?
no as the yoke specs are way different

THX, I would like said yoke + chassi ms29 change.  The tube's back is less deep than toshiba ms9-29's tube, it could be an issue?
Title: Re: A66EHJ13x01 28" Tube compatible chassis
Post by: lilshawn on August 03, 2022, 01:17:04 pm
the yoke are different because the angle of the yoke deflection needed changed due to the tube shorter/longer... so a different yoke with the ability to deflect the beam properly was needed. so you can't just swap the yoke over.
Title: Re: A66EHJ13x01 28" Tube compatible chassis
Post by: nonosto on October 19, 2022, 07:02:26 am
hello I have this tube, is it compatible with Hantarex POLO Star 25/28 tri-freq, it's seems very closed to  Videocolor/Thomson A66EHJ13X12.
THX
Title: Re: A66EHJ13x01 28" Tube compatible chassis
Post by: lilshawn on October 19, 2022, 10:50:48 pm
a certain monitor colour picture tube may have the designation, M34AFA63X03 that can breakdown into 6 parts: M/34/AFA/63/X/03

Part 1: Application

Computer monitor tubes start with the letter "M" while for a TV picture tube, it start with “A", factory seconds "B" and so on down the line.

Part 2: Screen diagonal measure in centimeters (cm)

The “34" means the diagonal viewing measure is a minimum of 34cm which refers to 14" tube, 36cm is 15", 41cm is 17" and so on.

Part 3: Family code

The three letters “AFA" designate a family of tubes that have similar physical and electrical characteristic. These letters are assigned alphabetically beginning with “AAA", followed by “AAB",“AAC" etc. This would be things like voltages for the heater and the voltages required for the G1 and G2, the orientation/shape and/or configuration of the electron guns etc.

Part 4: Family number

The number 63 shows a specific tube within the family code.

A different number is assigned to tubes within the same family that have different neck diameters, for example a single digit would be a monochrome tube, but this two-digit number shows it is colour.

Part 5: Phosphor Type The fifth symbol gives the phosphor designation. The letter X here corresponds to P22 for colour picture tubes. Colour monitor tubes can have any other single letter (excluding I, O, or W) to designate other phosphor type for various applications. For monochrome pictures, the phosphor symbol is WW, corresponding to P4. Monochrome monitor tubes also can use WW or some other two-letter combination (excluding I and O).

Part 6: Integral neck components The sixth symbol is assigned only for tubes having integral neck components, such as the deflection yoke. The specs are only apply to a particular tube manufacturer. The primary consideration here is winding inductance. The yoke coils have different sensitivity i.e. deflection per Amp in both horizontal and vertical.

as long as most of the first 5 sections are pretty close, the tube will mostly be compatible.
Title: Re: A66EHJ13x01 28" Tube compatible chassis
Post by: nonosto on November 06, 2022, 08:17:33 am
thanks very much @lilshawn. If I have a good understanding in this case we have A66EHJ13X01 for thomson TV tube and A66EHJ13X12 for videocolor.
So compatible chassis, it's wonderful it's a very good tube and can make a very nice tri freq CRT.
Title: Re: A66EHJ13x01 28" Tube compatible chassis
Post by: lilshawn on November 06, 2022, 12:56:55 pm
tubes for the most part are interchangeable... electrically, they are all nearly identical from an operational standpoint. dual focus vs single focus...

it's the 60 degree deflation vs 110 degree deflection and the 15khz vs 25khz vs 31khz that is the main issue... it's the deflection yokes that are the problem.
Title: Re: A66EHJ13x01 28" Tube compatible chassis
Post by: buttersoft on November 08, 2022, 01:10:03 am
Hey, Shawn, what do you make of this one?

(https://i.imgur.com/DAGwIlj.jpg)
Title: Re: A66EHJ13x01 28" Tube compatible chassis
Post by: lilshawn on November 08, 2022, 11:23:54 am
14" monitor, 90 degree deflection angle.

http://forum.arcadecontrols.com/index.php?topic=85215.0
Title: Re: A66EHJ13x01 28" Tube compatible chassis
Post by: buttersoft on November 08, 2022, 05:44:07 pm
Is that an American 14", so Australian 15"? Vs a 34cm Australian 14"? I also haven't seen a tube with a missing A/M at the front, though overall i haven't seen more than a few dozen tubes, i guess.
Title: Re: A66EHJ13x01 28" Tube compatible chassis
Post by: princess prin prin on November 09, 2022, 05:22:24 am
It's a 37/34cm = 14"/13".

Chinese tube, hence the unusual designation:

https://wiki.arcadeotaku.com/w/CRT_designation_systems#Chinese_System
Title: Re: A66EHJ13x01 28" Tube compatible chassis
Post by: lilshawn on November 09, 2022, 02:39:45 pm
i converted to inches for the sake of continuity. but it's 37 centimeters.

just like a A66..... is 66 cm (25.98 inches if you convert directly but often called a 27")

monitor measurements have always been weird.
Title: Re: A66EHJ13x01 28" Tube compatible chassis
Post by: buttersoft on November 09, 2022, 05:34:29 pm
It doesn't help that most of the world measured tube size where the US ruled a CRT had to be measured by visible size (not an unreasonable thing to do by itself).

Thanks for the replies, ppl!