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Author Topic: How are they driving these CRT's?  (Read 664 times)

Tim Weaver

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How are they driving these CRT's?
« on: May 10, 2022, 05:42:36 PM »

This Jimmy Kimmel set is pretty awesome. Sometimes the TV's are solid colors. That's easy enough, gut them and put a fixture in there. But SOMETIMES they are playing static?!?

So what gives? How are they driving these CRT's?
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Dave Garoutte

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Re: How are they driving these CRT's?
« Reply #1 on: May 10, 2022, 07:04:27 PM »

This Jimmy Kimmel set is pretty awesome. Sometimes the TV's are solid colors. That's easy enough, gut them and put a fixture in there. But SOMETIMES they are playing static?!?

So what gives? How are they driving these CRT's?

Link?
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Tim Weaver

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Bullwinkle: This is the amplifier, which amplifies the sound. This is the Preamplifier which, of course, amplifies the pree's.

Geoff Doane

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Re: How are they driving these CRT's?
« Reply #3 on: May 10, 2022, 09:19:48 PM »

My guess is that they have LCD screens in there, not CRTs, and they're fed from several computer video outputs.  The one downstage centre is already too thin to have a tube.  LCDs also have the advantage (over CTRs) of having a long enough persistence that frame rate isn't a problem for the video cameras that are shooting this.

Or maybe it's something else.  :D

GTD
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Jonathan Johnson

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Re: How are they driving these CRT's?
« Reply #4 on: May 10, 2022, 09:32:12 PM »

My analysis?

The ones showing static are actual CRTs not connected to any signal.

The ones with the red "screens"? Just a thin cardboard box with some film (gel?) and a red light driven by a lighting kit.
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Dave Garoutte

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Re: How are they driving these CRT's?
« Reply #5 on: May 10, 2022, 09:46:23 PM »

My analysis?

The ones showing static are actual CRTs not connected to any signal.

The ones with the red "screens"? Just a thin cardboard box with some film (gel?) and a red light driven by a lighting kit.
+1  The red screens are fake TVs.
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Brian Jojade

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Re: How are they driving these CRT's?
« Reply #6 on: May 11, 2022, 09:21:04 AM »

Instead of LCD screens, often you'll just see LED video wall modules mounted inside.  Much brighter that way.  Controlled then as part of the video wall.
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Tim Weaver

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Re: How are they driving these CRT's?
« Reply #7 on: May 11, 2022, 12:27:57 PM »

Instead of LCD screens, often you'll just see LED video wall modules mounted inside.  Much brighter that way.  Controlled then as part of the video wall.

Ooohh. That's very cool.
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Bullwinkle: This is the amplifier, which amplifies the sound. This is the Preamplifier which, of course, amplifies the pree's.

Scott Helmke

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Re: How are they driving these CRT's?
« Reply #8 on: May 11, 2022, 02:51:09 PM »

Instead of LCD screens, often you'll just see LED video wall modules mounted inside.  Much brighter that way.  Controlled then as part of the video wall.

That's a fascinating thing I've seen on a few shows.  Everything on the set is mapped into one huge "video wall", and then the light show control is actually a video animation.  By the end of the show the whole thing is revealed to be capable of playing back (rough) video content.
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ProSoundWeb Community

Re: How are they driving these CRT's?
« Reply #8 on: May 11, 2022, 02:51:09 PM »


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