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  #151  
Old 04-16-2012, 02:37 PM
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Electronic M Electronic M is offline
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Very nice!
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What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4

Reading between the scan lines since the mid 2000's.
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  #152  
Old 04-16-2012, 02:59 PM
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This is awesome, it's been a while but remember this thread started out as a 15GP22 for sale from a set that was being parted out, what a shame that would have been!

It looks incredible!
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  #153  
Old 04-16-2012, 06:43 PM
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Pete Deksnis Pete Deksnis is offline
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Nick,

Crosshatch looks nice; horizontal linearity at the left side of the screen can be a pain sometimes.

No horizontal overdrive visible; did you have to make some alterations or did it go away?

Pete
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  #154  
Old 04-16-2012, 08:19 PM
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Lucky man

Quote:
Originally Posted by miniman82 View Post
Don't be too sure, he just replied to my message.

Looks like I might own a CT-100!
Wow a hell of a find. Good luck. Want to see it when it's all done.
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  #155  
Old 04-16-2012, 08:43 PM
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miniman82 miniman82 is offline
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Quote:
Originally Posted by Tom S View Post
Wow a hell of a find. Good luck. Want to see it when it's all done.


Umm, it is done...

Quote:
Originally Posted by miniman82 at 3:13 yesterday
I'm putting it on the 'done' list.

Incidentally, if anyone in the area would like to stop by and see my small collection, I'm game. Just shoot me a PM, and we'll set something up.


Quote:
pete deksnis]horizontal linearity at the left side of the screen can be a pain sometimes. No horizontal overdrive visible; did you have to make some alterations or did it go away?
Does it look a little off to you? I admit, I haven't revisited the horizontal oscillator setup procedure since I got it running right, probably time to make sure I still have equal peaks and check that lock in is right on target.

I had to change the value of R176 (Sams), it was 47k now it's 22k. Making that change got me to where the drive control actually has some range instead of being at it's extreme CCW position. The real cause of the issue is the negative voltage coming from the power supply is a bit off for some reason; it reads -24 or so when in Sams it calls for a full -30. Still don't know why it's low, the only thing that could cause it is a iffy choke or 2R191 being low in value. They both check out within tolerances, so I made the drive mod. Also, horizontal cathode current is reading nice and low post-mod. I think when I first read it, I got 168ma or something? It's lower now, checking in at a solid and steady 140ma. So I trust the mod isn't having any negative impact on the performance of the horizontal output stage. <shrugs>
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  #156  
Old 04-17-2012, 12:18 AM
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Phil Nelson Phil Nelson is offline
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Quote:
Originally Posted by miniman82 View Post
I'm putting it on the 'done' list.
Excellent work. It's fun to see a CT-100 looking so good.

Phil Nelson
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