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Old 05-05-2015, 03:51 PM
GreenAcres GreenAcres is offline
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Anyone Know What Tube Is In Mitsubishi CS1904?

I'm looking for a tube to put in my arcade game. I need a 19VJTP22 tube. I've heard that the Mitsubishi model CS1902 TV has this tube in it and it will work but I can't find one of those. I've located a Mitsubishi CS1904 about an hour away and I didn't want to make the drive on a long shot. Anyone have any ideas?
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Old 05-06-2015, 01:12 AM
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ChrisW6ATV ChrisW6ATV is offline
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It looks like it is probably enough newer that it likely does not have a 19VJTP22 in it, but I do not know for sure. That set (CS-1904) is from 1986, and the 19VJTP22 is from around 1980-82. I used to work on the Electrohome G07-904 game monitors in 1981, doing warranty repairs on them for several game manufacturers.
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Old 05-07-2015, 05:26 AM
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zeno zeno is offline
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My manual is MIA.
Is there an EIA number on the CRT label ? That will tell
you who really made it & you can narrow the search.

73 Zeno
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Old 05-08-2015, 12:18 PM
GreenAcres GreenAcres is offline
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What is an EIA number?
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Old 05-08-2015, 04:05 PM
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Findm-Keepm Findm-Keepm is offline
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The manufacturer number, or Electronics Industries Association (formerly RETMA) number, usually 3 digits, and usually precedes a date code. There are over 1100 EIA codes, but only one for the CRT - usually an RCA ( code 274 ), Sylvania ( code 312 ), Zenith ( code 343 ) or Clinton ( code 1240 ). Others such as Sony, Mitsubishi and Sharp made some tubes, but they are clearly marked.

Cheers,
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Old 05-08-2015, 05:21 PM
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zeno zeno is offline
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To expand on things.....
The big CRT label usually says "EIA ###" on it if its a US
tube. Jap & ROK do not that I remember any with them.

A Sanyo tube may say Sanyo on it but may say EIA 312
for Sylvania who sold Sanyo most of there jugs.

A label is usually the same style. A mid 70's RCA tube
you can find in RCA, Magnavox, Admiral, Sears/Warwick &
others. The labels are all the same except brand & color.
The EIA 274 is always the same.
( A photo of the label may help)

Bottom line is if you can narrow it down to who made it
you can look for a TV donor. You may not find the exact
number but if it physically fits the electronic properties
are usually the same.

73 Zeno
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Old 05-12-2015, 10:29 PM
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colorfixer colorfixer is offline
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Generally, as long as the tube is 90 degree deflection angle (it will say 90V on the bell), and the neck is the same diameter + number of pins it should electrically work. However the convergence on the tube with the game's yoke might be a problem. Compare the yokes with an ohm meter before you strip the TV's yoke off the tube, if they are similar, then you should be golden.

Of course, your mileage may vary, and do at your own risk...
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Old 05-13-2015, 01:10 PM
dieseljeep dieseljeep is offline
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Quote:
Originally Posted by Findm-Keepm View Post
The manufacturer number, or Electronics Industries Association (formerly RETMA) number, usually 3 digits, and usually precedes a date code. There are over 1100 EIA codes, but only one for the CRT - usually an RCA ( code 274 ), Sylvania ( code 312 ), Zenith ( code 343 ) or Clinton ( code 1240 ). Others such as Sony, Mitsubishi and Sharp made some tubes, but they are clearly marked.

Cheers,
The Zenith CRT's were EIA source 1101 for Rauland. 343 was for the rest of the set.
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Old 05-13-2015, 05:16 PM
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zeno zeno is offline
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Quote:
Originally Posted by dieseljeep View Post
The Zenith CRT's were EIA source 1101 for Rauland. 343 was for the rest of the set.
You used to see both 1101 & 343 on CRT's. Early 60's B&W
sets ofter even said Rauland & thats years after Zenith bought
them out. Must have been a reason for that but I wasnt looking
for the answer 40 yrs ago ! IIRC the Rauland plant was still
making jugs when the new plant was in production. Maybe they
just made some types or rebuilts only ?

Maybe if Doug is watching he knows.

73 Zeno
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