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  #76  
Old 07-22-2012, 10:12 PM
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Eric H Eric H is offline
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Quote:
Originally Posted by ctc17 View Post
You can measure the capacitance with an eye type cap tester. There should be a spec for that crt.
I don't think it would be all that critical would it?
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  #77  
Old 07-22-2012, 10:33 PM
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Quote:
Originally Posted by Eric H View Post
I don't think it would be all that critical would it?
It doesn't seem so since the datasheet says 850-1400pF. I'm measuring around 900pF with my vintage Solar CB-1-60 cap tester.

I would think it's also possible to stick a 1000pF HV cap on the flyback to filter the HV and not use the coating at all.
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  #78  
Old 07-22-2012, 10:34 PM
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well the dag + glass = filter capacitor. IIRC the small crts are something like 800-1200pf, its enough to smooth out the hv.
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  #79  
Old 08-05-2012, 02:40 PM
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I sprayed a little more slip plate in the corners and got it up to 1,000pF.
Then I did some final tweaking and put the set back together.



I sprayed some semi-gloss black on the metal portion of the cabinet and silver paint on the trim. I'd still love to find a better cabinet someday but at least it's somewhat presentable now.


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Last edited by bandersen; 08-05-2012 at 02:46 PM.
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  #80  
Old 08-05-2012, 02:46 PM
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First, I see the resolution of the video. Yes!

This little set has probably never seen such a clean signal... Are you going thru the tuner?
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  #81  
Old 08-05-2012, 02:49 PM
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Holy smokes thats Sweeeeeeeeet!!! Exelently done!!!
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  #82  
Old 08-05-2012, 02:51 PM
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Thanks!

Quote:
Originally Posted by holmesuser01 View Post
First, I see the resolution of the video. Yes!

This little set has probably never seen such a clean signal... Are you going thru the tuner?
Sure. I'm using an over the air ATSC to NTSC converter box. The RF output on channel 3 is going through a 75-300 balun into the antenna terminals on the back of the set.

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Last edited by bandersen; 08-05-2012 at 02:56 PM.
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  #83  
Old 08-05-2012, 02:54 PM
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Thanks!



Sure. I'm using an over the air ATSC to NTSC converter box. The RF output on channel 3 is going through a 75-300 balun into the antenna terminals on the back of the set.
Sho' looks purdy.
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  #84  
Old 08-05-2012, 02:54 PM
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Loving the way this set has come back to life. Excellent work, as usual.

So what is the test pattern showing the video response at?
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  #85  
Old 08-05-2012, 02:59 PM
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I think around 3.5 MHZ. I'd have to dig out the Sencore VA62 manual to know for sure. Also, I haven't done an alignment on this set yet.
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  #86  
Old 08-05-2012, 03:14 PM
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that's a nice sharp picture ,good work .
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  #87  
Old 08-05-2012, 09:48 PM
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Looks great!
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  #88  
Old 08-05-2012, 09:56 PM
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WOW! That thing really came back to life! It looks a lot better all cleaned up. I hope you can find a bezel for it. That picture looks perfect!
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  #89  
Old 08-05-2012, 10:48 PM
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Boy, great picture on that one.

Phil Nelson
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  #90  
Old 08-05-2012, 11:31 PM
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Quote:
Originally Posted by zenithfan1 View Post
WOW! That thing really came back to life! It looks a lot better all cleaned up. I hope you can find a bezel for it. That picture looks perfect!
Thanks. I'll wait a while and if a bezel doesn't turn up I'll break out some Bondo and try to repair this one.
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