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Can I put Nanao ms9 29u with chassi 05b21

Printed From: ukVac.com
Category: Technical
Forum Name: Tech, Maintenance & Repairs
Forum Description: Need Help? Ask Here
URL: http://www.ukvac.com/forum/forum_posts.asp?TID=371487
Printed Date: 19 Oct 2019 at 4:07am


Topic: Can I put Nanao ms9 29u with chassi 05b21
Posted By: Retroman839
Subject: Can I put Nanao ms9 29u with chassi 05b21
Date Posted: 11 Jul 2019 at 6:06pm
So after blowing a ms9 chassi

I thought better to ask the forum before throwing the power switch this time!
Can I put ms9. 29u    Tube with a
Nanao pcb main 05b20184d1 chassi ?




Replies:
Posted By: robotech
Date Posted: 11 Jul 2019 at 7:48pm
I dont know if the chassis and tube will go together
But you need to measure your yolk inductance before randomly
Plugging chassis in and powering them up

Google the chassis for more info or wait for one of the monitor repair guys advice before plugging stuff in

-------------
Daytonaaaaaaaaaaaaaaaaaa lets go away


Posted By: Retroman839
Date Posted: 11 Jul 2019 at 8:47pm
cheers I googled it and yes they go together ,, 

all wired up ready for me to throw the switch on it tomo … 

I got the chassi long time ago so ? 

will be interesting to see wahat happens tomo 




Posted By: gunblade
Date Posted: 11 Jul 2019 at 9:09pm
nope


Posted By: tb2000
Date Posted: 11 Jul 2019 at 9:46pm
As Grant says, it won't work. That's a MS-2934 chassis (vga 31khz?) I believe, ms9-29 tube has the wrong yoke for that.


Posted By: Retroman839
Date Posted: 11 Jul 2019 at 10:24pm
Really, it’s ms9 29u

I thought the universal was alright o well
Back on the shelf good job I didn’t turn it on
Then..... cheers grant



Posted By: Retroman839
Date Posted: 11 Jul 2019 at 10:26pm
Just a little note
Neck board has 3 little bulbs on it?

Like little valve lamps
Is that standard neck board for this chassis?


Posted By: Retroman839
Date Posted: 11 Jul 2019 at 10:36pm
I’m going to find the required yoke deflection values?

Or the horizontal and vertical comparability values for this chassi
Then see if it is compatible with any of my other tubes
Pentranic flat
And sanwa tri syncs


Posted By: Retroman839
Date Posted: 11 Jul 2019 at 11:00pm


I can check the Ohms
On this tubes h & v yoke confections tomorrow for ohms values
But I just read owners manual for ms 2934 and I could not find the required yoke values that suit?
Does anyone Know can anyone help me find the required parameters required on yoke for this chassi
To work with it?

Thanks In advance


Posted By: gunblade
Date Posted: 11 Jul 2019 at 11:03pm
ms2934 will be around 0.195mh horizontal, ms9-29 is 0.300mh horizontal

they are not bulbs on the neck card, they are spark gaps


Posted By: Retroman839
Date Posted: 11 Jul 2019 at 11:08pm
Thanks
So do I need not worry about vertical values?
If the horizontal value is in range then I’m good to go?



Posted By: Retroman839
Date Posted: 11 Jul 2019 at 11:17pm


0.33mhm on the horizontal with this wei ya
So could I in theory swap one of the nanao chassis with this ?


Posted By: gunblade
Date Posted: 11 Jul 2019 at 11:33pm
apart from it may be a dual focus chassis, the wei ya that is
the yoke tolerances on wei ya are similar to ms9-29

and you can't either of these on a ms2934 tube, the inductance reading is important- if you put either of these chassis on a ms2934 tube you will probably find the HOT will be driven to extremes and short out


Posted By: Retroman839
Date Posted: 11 Jul 2019 at 11:52pm
Ok ?? so I can give the ms9 29 a go with this
Samsung tube ?
Cheers for help


Posted By: gunblade
Date Posted: 11 Jul 2019 at 11:58pm
i don't think so but you need the full inductance and impedance readings of the yoke to be sure


Posted By: Retroman839
Date Posted: 12 Jul 2019 at 6:34am
Ok thanks


Posted By: Retroman839
Date Posted: 12 Jul 2019 at 7:12am
I’m giving up trying to swap chassi.
I will just stick to correct chassi to tube.

The whole thing of swapping just seems like a missivly bad idea
For many multiple reasons, but the one that really puts me. Off
Is increased X-rays,   I’m not in the mood for being microwaved today.
I will just keep safe and stick to path..
an keep them xrays Down to a minimum...
Safety first....

Thanks grant I have a chassi or 2 to send soon
And thanks for the fix power supply works a charm.




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