#16
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althogh it has a small green tint around the edges of the picture tube?
many hours of use? bad picture tube?
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Looking for zenith cobramatic parts -johnny the raster master! |
#17
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Ahhh.. you must have gotten Zenith’s first rectangular set. You’ll know if it has a round screens convergence assembly on it. (sliders instead of knobs). That one is a GREAT set. As a matter of fact.. that chassis was the first vintage set I owned as a kid. My Uncle got it on trade (1978) and it was a Space Command. Surprisingly.. the flyback was bad, so I had him replace it, and then.. I had him install a Chromacolor picture tube. (boy.. what a difference that made)
Anyway.. got 10 more years out of it. As for the “green halo”.. don’t worry about it. ALL Zenith tubes did that, even when they weren’t that old. RCA tubes always developed cataracts, and Zenith had the halo, which in my opinion is the lesser of the 2 evils. Has nothing to do if the tube will be good or not. You’ll just have to see how the picture is, or test it on a CRT checker. Zenith called that generation of color tubes the “Sunshine Tube”, and then they went to the Chromacolor series. The Sunshine version wasn’t bad, but in my opinion, didn’t produce an outstanding picture. Good luck on it, and hope to see some screen shots! |
#18
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it was sold before i got it home today!!!
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Looking for zenith cobramatic parts -johnny the raster master! |
#19
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yep, he who hesitates is lost, goes the old saying.
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#20
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Now its for sale at the irvington flea market indianapolis indiana, or contact tvtimeisfun if you want to BUY it
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Looking for zenith cobramatic parts -johnny the raster master! |
Audiokarma |
#21
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it was turned on yesterday it has sound no hv thogh bad hv rectifier?
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Looking for zenith cobramatic parts -johnny the raster master! |
#22
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I got it back today!
its called the zenith $ervice $aver chaissis
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Looking for zenith cobramatic parts -johnny the raster master! |
#23
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those work well as long as you dont over restore it.
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#24
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it comes on no buzz great sound, but no hv? picture tube isnt bad
is the hv rectifier the culprit? horiz. output?
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Looking for zenith cobramatic parts -johnny the raster master! |
#25
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Quote:
Or Damper Or any one of a dozen other things in the horizontal sweep or HV circuits. Start with a neon bulb test at the HOT plate cap. Any pulses there? |
Audiokarma |
#26
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The picture tube is OK, but blue tested a little weak.
stuck a horz. output tube in there tuned it on, and It has a bad flyback, and horz. caps, and high voltage caps
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Looking for zenith cobramatic parts -johnny the raster master! |
#27
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pictures arent the brightest, but you might see the tv
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Looking for zenith cobramatic parts -johnny the raster master! Last edited by radiotron; 10-15-2012 at 07:58 PM. |
#28
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I really like that model. They're pretty hard to find around here, unless you have endless time to spend at estate sales. I rarely get to go to them anymore.
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My TV page and YouTube channel Kyocera R-661, Yamaha RX-V2200 National Panasonic SA-5800 Sansui 1000a, 1000, SAX-200, 5050, 9090DB, 881, SR-636, SC-3000, AT-20 Pioneer SX-939, ER-420, SM-B201 Motorola SK77W-2Z tube console McIntosh MC2205, C26 |
#29
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Quote:
also my grandpa said that certain set has a problem with the flyback going bad i got the thing from tvtimeisfun for $40
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Looking for zenith cobramatic parts -johnny the raster master! |
#30
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Yes, they weigh a ton. I think if you removed everything plastic from the whole set, it would fit in one hand, all else is metal. I love these tanks, I have a 23" '67 model on a cart that looks somewhat like this. I have 2 1970 20" models that look very much like it too. One was saved from the dump and was slid on pavement on all sides but the face but works pretty well, the other is mint looking but has something wrong with it. As soon as I can get a decent work area together again, I'll combine the two sets into one perfect one, or maybe get 'em both working right and have a junky looking one with "character"
If I were you, I'd hold onto that one until you're more familiar with working on color sets and in the meantime look for a flyback and any other parts it may need. There are a few white ceramic caps in those that like to explode but that can be fixed with 5 bucks worth of caps, so no biggie. Trust me, if you hold on to it and wait patiently like I just said. You will be happy later.
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My TV page and YouTube channel Kyocera R-661, Yamaha RX-V2200 National Panasonic SA-5800 Sansui 1000a, 1000, SAX-200, 5050, 9090DB, 881, SR-636, SC-3000, AT-20 Pioneer SX-939, ER-420, SM-B201 Motorola SK77W-2Z tube console McIntosh MC2205, C26 |
Audiokarma |
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