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#1
02-21-2012, 08:11 PM
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LoL, if only....
I found this trolling the internet for 15GP22's today, I think it's leftover web garbage from the Ebay listing. 10 bucks would be a hell of a deal, would it not? 
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#3
03-04-2012, 04:55 PM
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OMG! Lovely new cabinet for a grand lady!
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#5
03-04-2012, 07:25 PM
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Looks like new, Nick...
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#6
03-04-2012, 11:11 PM
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That looks nice indeed.
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Chris Quote from another forum: "(Antique TV collecting) always seemed to me to be a fringe hobby that only weirdos did."
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#7
03-06-2012, 12:21 AM
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That cabinet looks awesome!
I'll have to stop by some time to see it once you get it back together.
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Tom C. Zenith: The quality stays in EVEN after the name falls off! What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4
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#8
03-08-2012, 09:37 PM
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Quote:
Time is nigh, Tom.  I think I'll fire it up tomorrow, to see if I can get some correct color bars on it. I jacked the alignment up when I last messed with it, so I'll be stuck using composite input only for the moment. Actually I've been tossing around the idea of converting all my sets in the same fashion, but my increasing skill at using the B&K 415 is making me rethink the idea. I'll give another alignment a go before I make my decision.
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#10
03-09-2012, 12:07 AM
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That set looks great.
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Chris Quote from another forum: "(Antique TV collecting) always seemed to me to be a fringe hobby that only weirdos did."
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#11
03-09-2012, 12:25 AM
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Veeerrrry nice
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#12
03-09-2012, 01:49 AM
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Cabinet looks nice, indeed.
Color bars! Color bars! Color bars! Phil Nelson Phil's Old Radios http://antiqueradio.org/index.html
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#13
03-12-2012, 10:55 PM
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Quote:
OK, ok, ok already!  I had to replace more parts to get to this point though, turns out the 'I' section of the chroma channel was completely dead. That ended up being, surprise surprise, another bad peaking coil. This time it was the one feeding the 'I' phase splitter, which led to complete lack of 'I' information to the matrix. The clue was the 'I Gain' pot having no effect on the picture, and the colors being generally messed up. Replaced it with one of the ferrite spares I had floating around, and it perked right up. Still remaining is the IF alignment, which I totally screwed up earlier. I think I'm going to have to use the mod marker function of the 415 to tune all the coils independently first, then move on to a regular alignment to finalize the response. That will allow me to finally get some DVR stuff on the screen, to see how well it really performs. I'm also noticing a slight drive line in the picture, even though the pot is at minimum. I'll probably have to change some values under the hood to get it a tic lower, so the line will go away. Other than that, it's looking pretty good if I do say so myself.
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Evolution...
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#14
03-13-2012, 01:22 PM
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Quote:
Something simple to check: Some CTC2 schematics incorrectly show the HO coupling cap [mounted above chassis next to the drive pot] as 0.01 uF, where the final design value is 0.0015 uF. That alone can cause an overdrive line if there's a 0.01 instead of the correct 0.0015 (or. of course, a 0.001 uF is good too). Pete Last edited by Pete Deksnis; 03-13-2012 at 01:30 PM.
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#15
03-13-2012, 04:32 PM
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You are the oracle, Pete! I was unaware of this, but I checked the chassis and it has the correct .0015uf in it. I could try a slightly weaker horizontal osc tube before making circuit changes, less output=less drive. If that doesn't work, I'll have to fool around with the parts.
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Evolution...
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