nashou
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Tech in Training.....
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Post by nashou on Apr 10, 2015 19:59:24 GMT -5
Yes the Green coils in Barcos are reversed as I think hey thought the magnetic poles might affect each other if they were all the same across the three tubes.
Also I remember posting some where that there should be a way the windings are oriented in the Coil pack.
From logic I would think you would want the static coil fist after the "gun" and then the dynamic following. So that the beam is global focused first in the static then the dynamic can touch up the edges and told bottom.
On the marquee it is like they are on top of each other or parallel . Not one first then the other second they are together I am pretty sure.
Scott told me you would get a little more adjustment and less street on the Circuit if there was less Resistance in the coil, so larger gauge wire, but it is the inductance that is key. you need and LCR meter to measure the inductance of the coil. Id be curious what that is on the 909 coils.
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Deleted
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Post by Deleted on Apr 11, 2015 2:33:33 GMT -5
Thanks for th info! I measured the inductance of the dynamic coils with my lcr meter and they where in range with the thomson the static coil I need to measure with scope and frequency generator. Might do it to know more.
One thing I wanted to ask. In the 909 yoke thread by Mike he starts with removing the tightenig ring on the convergence so the yoke moves more forward. But later he says not to do that anymore. You also mention experimenting with that. It seems logical. What are your results?
Overall the beam seems to produce more light or punch. And I see the 1:1 separate lines more clearly. Still lot of setup to do.
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Deleted
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Post by Deleted on Apr 11, 2015 2:38:54 GMT -5
Good to hear. What do you have for astig control now? I have the sony astig magnets. I do not use the 6-poles. The range for astig is enough I checked that. For focus I have 28 R 31 G 28 B so these are somewhat low but I can get focus anywhere but sometimes at value 100. |
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nashou
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Tech in Training.....
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Post by nashou on Apr 11, 2015 14:28:48 GMT -5
Still use the 6 pole magnets. Why not use something hat will help control the beam? I would still use them.
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Post by Deleted on Apr 11, 2015 16:09:00 GMT -5
I don't have triangular spots so they do nothing. When I use them the the spot gets triangular and that is not good.
Do you use frankenjokes and moved them more forward removing the ring on the convergence? What vallues do you have for static?
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Post by Casethecorvetteman on Apr 18, 2015 2:06:43 GMT -5
My 3 Barco focus yokes are identical.
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Deleted
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Post by Deleted on Apr 18, 2015 12:58:22 GMT -5
My 3 Barco focus yokes are identical. On the sticker the green one has a G in the number. Also on my 809. |
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Post by Casethecorvetteman on Apr 19, 2015 2:05:20 GMT -5
Yeah mine doesnt though, i have the tubes and neck hardware from my 909 in the Cine 9 at the moment, id have to open it up to check.
Id say someone swapped one in the Cine 9 for some reason, and that may just be why i could never get the sides focused with the original green tube in there.
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Post by Deleted on Apr 19, 2015 12:13:47 GMT -5
Yeah mine doesnt though, i have the tubes and neck hardware from my 909 in the Cine 9 at the moment, id have to open it up to check. Id say someone swapped one in the Cine 9 for some reason, and that may just be why i could never get the sides focused with the original green tube in there. Very well possible. The side focus is the horizontal or dynamic focus. Think the electronics are adjusted to the position of that coil. Perhaps reversing the inside would solve that? |
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nashou
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Tech in Training.....
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Post by nashou on Apr 19, 2015 13:57:25 GMT -5
Yes the green is reversed as I explained earlier. I believe they did it so the Mag fields would not affect each other . This way the fields are opposite and not the same to repel
each other.
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Post by Casethecorvetteman on Apr 19, 2015 17:50:51 GMT -5
Yeah mine doesnt though, i have the tubes and neck hardware from my 909 in the Cine 9 at the moment, id have to open it up to check. Id say someone swapped one in the Cine 9 for some reason, and that may just be why i could never get the sides focused with the original green tube in there. Very well possible. The side focus is the horizontal or dynamic focus. Think the electronics are adjusted to the position of that coil. Perhaps reversing the inside would solve that? Doubt ill need to, it focuses perfectly with the yokes that are in at present, so id say the one in there now is correct. |
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