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#1
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Cataract repair successful!!!
http://suzaku.live-evil.org/0723231535.jpg http://suzaku.live-evil.org/0723231648b.jpg Thus was a LOT easier than expected, after an hour in the sun, and sticking spudgers in under the safety glass, it almost came off on it's own W/O hardly any need of the heat gun. http://suzaku.live-evil.org/0723231651.jpg gunk came right off. http://suzaku.live-evil.org/0723231748.jpg glass back on http://suzaku.live-evil.org/0723231916.jpg tube back in http://suzaku.live-evil.org/0723232206a.jpg http://suzaku.live-evil.org/0723232206b.jpg hard part is over!
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#2
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Looks great! Now, I have to get off of my fat @$$ and work on my tube.
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#3
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Now, all that's left to do is to get everything all back together and bolted down, chassis & tuner ETC, and get all wires tied back where they were, get the set to where it's going to be finally kept, and do final fine adjustments when it's there.
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#4
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latest video.
http://suzaku.live-evil.org/0811232252.mp4 pretty much done. tuner and chassis back in minor adjustments left when moved to final location, Height /lin the color echo is still there, but not much I can do about it, I dont have the tools to do a bandpass alignment
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#5
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http://suzaku.live-evil.org/0821232202.jpg
Maggie moved nest to the Hoffman Colorcaster television. Will do final adjustments this weekend.
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=^-^= Yasashii yoru ni hitori utau uta. Asu wa kimi to utaou. Yume no tsubasa ni notte. いとおしい人のために |
Audiokarma |
#6
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As I expected, rotating the set at a right angle to move it to it's final location made a slight change in the convergence alignment, not so much with purity however, spent over 2 hours going round and round with the convergence to get it close as I could, still not perfect, never is, problems as always on the right side, un-even lines that refuse to line up, I have NOT changed the diodes on the convergence PCB yet, that may be the reason, will most likely replace them with Mouser part 637-MUR160.
The slight color shadowing is still there, barely noticeable, but there, may look into that at a future date. One thing that makes this set even MORE oddball is it does not have an AFT defeat switch as shown on the SAMS, but has a 2nd weird color switch, I wish it did have the AFT defeat switch, cause it's rather annoying.
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=^-^= Yasashii yoru ni hitori utau uta. Asu wa kimi to utaou. Yume no tsubasa ni notte. いとおしい人のために |
#7
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The auto color switch is the AFT defeat switch.
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#8
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Unfortunately, I don't have a B&K 415, or really exp with one.
I did play with a Heathkit IG-57A in HS, but it was built by an amateur and I'm sure it did not work correctly. I could no doubt use one, cause I have sets that could benefit from alignments. The Magnavox T933 for example, as mentioned the color shadow is most likely from a chroma bandpass problem, adjusting the 4.5 MHz trap has only a slight impact on it, what seems to have the biggest effect is to turn color to max, tune to max color w/o interference (oversaturation), and then pull back on color killer to minimize color with color cont at max, this does not get rid of the shadow completely, but greatly reduces it to where it is hardly noticeable.
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#9
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This damn Maggotbox has a strange habit of refusing to turn on with any color lock once in a while, just rainbow screen, like the burst amp had failed or something. I don't like the tube they use, 6ke8 seems very unstable, then suddenly it starts working again, solid as a rock.
perhaps I should get MORE than just the 2 6ke8 tubes to try in it? to see what makes it happy all the time?
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=^-^= Yasashii yoru ni hitori utau uta. Asu wa kimi to utaou. Yume no tsubasa ni notte. いとおしい人のために |
#10
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Oh, these intermittent PITA issues... if this tube don't reached audiophile prices, is worth to try.
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So many projects, so little time... |
Audiokarma |
#11
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Looks like I'm not the only one who has been though the Maggie hell!
http://www.videokarma.org/showthread.php?t=269466
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#12
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It's still tending to act up sometimes, turned it on last night, color came on OK, then after 10 min, barber pole effect was back for 30-90 sec, then it locked in again for the rest of the night.
On / off a few times, stayed locked. Very annoying. MORE NOS tubes on the way, 2x 6KE8s (burst amp / color killer ) , for a total of 4, 1 original, 3 nos, ( no sub listed for this ) Yet another 6GH8A , used in 2 areas ( 3.58 osc & cont / chroma bandpass & horz blanking) I already have many of these. Other suspect, 6LM8 (video cathode follower-chroma sync amp / 1st video amp) 2 on hand, original , 1 NOS, it's stated that 6GH8A is a direct replacement, but not sure how this silly thing will react to it. Will just have wait for the new tubes and play musical chairs with tubes to see if anything changes. It works MOST of the time, but the 10-15% of time that it does NOT, is aggravating!
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#13
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I'm not sure if this is of any help or not, but it sounds almost like your TV is electrically similar to my 1968 Sylvania Color TV that I'm currently restoring and my Sylvania TV is having similar issues to your TV (barber poleing, color not locking in correctly, etc) and the interesting thing is that my TV has no paper caps in it to speak of mainly mylar or ceramic disc caps, and a lot of carbon comp resistors, of which the 1/2W or smaller carbon comp resistors all measure within specs yet, but the 1W or higher carbon comp resistors all measured 10%+ high, and I've also replaced many tubes in my TV and still have issues similar to your TV, but I think the issue might be mainly related to the resistors that have drifted high, I'm not sure if that might be the case with your TV but it might be worth looking into.
Last edited by vortalexfan; 03-26-2024 at 01:11 PM. |
#14
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HA! I caught it this time! ran it for a few hours, the first hour no problem.. then it did it again. shut out all lights took a look REAL close, V22 was out cold! (6KE8 burst amp / color killer ) , wiggle tube, lit up again, color came back! dirty socket? perhaps? I did clean them, perhaps it's being stubborn!
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#15
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Quote:
Zeno |
Audiokarma |
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