CurtPalme.com Home Theater Forum

[stridsvognen]

[Nashou66]

I do have a Vim with no Mod and I get the line when gamma is below 2.3. That is one reason i use 2.35 and I feel the colors are less washed out at that setting. I used to use 2.4 and set from 20 IRE down to 2.3. But now I find that 2.33 or 2.35 the best all the way from 10-100. But i do that for different reasons. I can get the blend zone more invisible with that Gamma.

But I never liked any gamma below 2.3 for CRT, colors looked washed out on my AC machine, LC might be different.

Athanasios

[stridsvognen]

Like i say.. Its all about taste, but for sure you get less visible Black details with a higher gamma. The line is anoying, but i see it as living with the lesser of 2 evils.. And the high gamma is just not for me. And a 2.23-2.25 gamma is a bit more like walking a line, if you step a bit to the side, its all a visible mess.. I think you will go for a lower gama with LC.. Im sure you will let us know when time comes..

[stridsvognen]

I think it makes sense to run a high gamma with the mod instaled. its then possible to keep a lower G2 value, WHO helps hiding the elevated Black.

If you plug a moddet vim in a machine setup for a non moddet vim you will se how much light there is on your tubes with a 0 IRE test image. Its a lot. So u need to lower the G2 some to get the tubes dark again.

[stridsvognen]

Now i have change all boards in the Ultra to older non ultra boards, and tonight ill try see if i can get some usable calibration results with more light output, and decent gray scale run.

I just finished playing with the 2 different VIM. Found out that when i removed sync on green the unstable shaking image disapeer from the vim with trimpots.

But.. Im stuck with max contrast on 50, and when changing to my other 02VIM where i changed a few caps, i can put contrast up to 70-75 with nice result.. The trimpot VIM makes the green line Bloom like crazy, 2-3x wide or more. around 60

Exiting day ..

[stridsvognen]

Anyone want to make a offer that i cant resist.?

Set of late ULTRA boards and PS.

[Nashou66]

KURT!!! WTF are you doing!!!!!????

Put those all back in now!!!!!!

OMG!!!!

If you can not be responsible with a Marquee you should not have bought one!!

But honestly, its not any boards or sh*t like that. Youll get better results once you get rid of the yellow Glycol.

Nashou

[stridsvognen]

Damn that was a slow response.. Sure ill never sell any of those boards.. just teasing.

I dont know if the glycol is yellow, it looks fine and clean true the lenses, and i dont have any glycol, so ill be stuck for some time with what i got.

Maybe when i get my new green tube from Curt ill put that one in ans see what happens.

[Curt Palme]

If you want to sell the focus board, I'll take that in partial trade towards the tube....

[Curt Palme]

If you want to sell the focus board, I'll take that in partial trade towards the tube....

[stridsvognen]

[osdag01]

i am new to here, but I am interested in buying the set, what is the asking price? Thanks.

[stridsvognen]

[stridsvognen]

I see i never explained the reason of why this projector was resolving 1080P 60hz so bad.

I had to change the green tube, it was born with a PT22 tube, that made some problems getting light output, and a crazy gamma run. ( P43 phosphor for 3D )

Also after a short period the blue tube shorted, and i had to replace that with another blue LCP tube.

So the problems were mostly tube related.

Now it behaves like my other 9500LC, but after installing the MP VNB and VIM its just all wild and smoking.. Super sharp corner focus, fully resolve 1080P 72hz with a light output around 10-11 fl on a 2m wide gain 1.0 screen. Can be beaten to output around 16fl, but i hurt me to turn up the contrast that high.

[gjaky]

[stridsvognen]

[gjaky]

I don't have one either, but once had an oscilloscope tube that also was shorted between two grid, I could see a tiny wire piece (much thinner than a hair) that was stuck between the grids, and I managed to burn that out with a simple bench powersupply. If your short isn't between the filament and cathode you might be able to do this too, if the problem origin is similar, if not the regenerator won't help either.

[stridsvognen]

No idea what kind of short my blue tube got, it looks like new, no dirt to see inside the tube, it just activated the spot kill.

[gjaky]

With a siple multimeter you can find out where is the short, assuming you know the pinout of the tube. Normally you shouldn't measure resistance between K-G1-G2-H.

[stridsvognen]

[Nashou66]

A shorted tube would not cause Spotkill circuit to activate. The Spot kill is on the VNB and VIM. There are some measurement points on the vim to see if it being activated.

Athanasios