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  #1  
Old 05-26-2013, 06:44 PM
DaveWM DaveWM is offline
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maybe something off in cathode voltage divider network? I don't recall anything odd about the yoke setting to get purity.
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  #2  
Old 05-27-2013, 09:54 AM
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Congratulations nut-man looks good....

....... just warms my heart , seein a squirrel complementing a nut

And on a serious note , Congrats from me too on your new tube !
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  #3  
Old 05-27-2013, 11:53 AM
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Any more good 21AXP22s where that came from? I could use one for my CTC4.
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  #4  
Old 05-27-2013, 04:44 PM
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Quote:
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Any more good 21AXP22s where that came from? I could use one for my CTC4.
I don't think so. Got it from Pete Deksnis. Don't know how he got it, but don't think he has any more.
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  #5  
Old 06-02-2013, 10:37 AM
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Been playing with the 21AX set up -

After the reminder about degaussing, I did it, and everything (purity, convergence) changed drastically. This did not happen with the glass tube, so I assume it's the metal cone itself that is the problem. I have been able to get the pure field purity back, but now white field purity is not so great. Probably have to play with the edge magnets.

Dynamic convergence on this tube is a problem - can't seem to get enough vertical red and green amplitude. The internal dag on the tube hides the pole pieces, so it's hard to tell where the proper convergence coil location is. It also seems like the blue lateral magnet interacts with red and green more than on the glass tube. I'm guessing there must be some differences between this gun and the ones Scotty used.


CAM00029 by old_tv_nut, on Flickr


CAM00028 by old_tv_nut, on Flickr


CAM00026 by old_tv_nut, on Flickr
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  #6  
Old 06-25-2013, 09:09 AM
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Can someone who has a working CTC-5 Super chassis and a scope put in a signal with full black to white range and tell me what the peak-to-peak signals on the cathodes are? If possible, a measurement of the detector output would help too.

I've suspected for a long time that this set has low drive , but I can't find a good reference to what the level should be. SAM's is no help because it shows the signal for gated rainbow, which has little or no luminance signal.
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Old 06-25-2013, 11:43 AM
47'Plymouth 47'Plymouth is offline
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Want you try a 6.3v white LED in your tuning dial,instead that's burns
Super cool and awhole lot brighter than the old style bulb..Jody

Last edited by 47'Plymouth; 06-25-2013 at 11:47 AM.
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  #8  
Old 09-25-2015, 02:33 PM
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I have a spare cabinet for the CTC-5 in this thread, with a few of the parts including a back (will post more details tomorrow when I have a chance to look at it again). Legs were sawed shorter than original at some time before I got them.

Free to anyone who can pick it up or arrange/pay for shipping.

Otherwise, will have to curb it, as I am moving across country in a month.
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  #9  
Old 09-25-2015, 05:54 PM
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Quote:
Originally Posted by old_tv_nut View Post
I have a spare cabinet for the CTC-5 in this thread, with a few of the parts including a back (will post more details tomorrow when I have a chance to look at it again). Legs were sawed shorter than original at some time before I got them.

Free to anyone who can pick it up or arrange/pay for shipping.

Otherwise, will have to curb it, as I am moving across country in a month.
How much of it do you have? I might be interested.
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  #10  
Old 09-25-2015, 06:33 PM
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Here's the cabinet. Also included: the safety glass (it's there, maybe hard to see). The metal trim around the safety glass. The pencil box. Some CRT shroud mounting ears. No knobs or anything else but what you see.
Attached Images
File Type: jpg CAM01104[1].jpg (67.4 KB, 42 views)
File Type: jpg CAM01105[1].jpg (64.8 KB, 53 views)
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  #11  
Old 09-30-2015, 09:00 PM
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Any interest? If not, has to go to the curb soon!
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  #12  
Old 10-01-2015, 08:59 PM
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Any interest? If not, has to go to the curb soon!
I'm thinking of getting it for a half decent back for my CTC-4. I'm going to be swamped until after the ETF meet this weekend though...
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  #13  
Old 10-01-2015, 09:23 PM
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Let me know ASAP after the meet (like Monday if you can) - judgment day and large item trash pickup are coming soon. If I have to hold it for you a couple of weeks that's OK, but not if it's going to be trashed anyway - there are limits on how much they'll take each week.
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  #14  
Old 10-01-2015, 09:45 PM
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Got you! I'm probably going to be in Kenosha on Sunday to get some stuff, if so I'll try to combine trips.
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  #15  
Old 10-10-2015, 06:46 AM
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It's time for this to go! Trash goes out Wednesday night, so speak now or lose it!
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