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nidi
Joined: 17 Aug 2008
Posts: 305
Location: Switzerland
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| Posted: Sun Mar 15, 2009 1:10 pm Post subject: a new Video Neck Board for all Marquee's from VDC !! |
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great news,
VDC designed a new VNB for the Marquee's , capable of higher bandwidths than the older design.
Scott generously posted all the schematics for the new design on the other forum.
Michael
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AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Sun Mar 15, 2009 4:22 pm Post subject: |
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I think Nashou's ear's just perked up 
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jask
Joined: 17 Mar 2006
Posts: 10187
Location: kamloops BC
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| Posted: Sun Mar 15, 2009 5:47 pm Post subject: |
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All you 'Quee owners must be feeling like kids at Christmas 
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Blorton
Joined: 27 Jan 2009
Posts: 105
Location: Hotlanta, GA
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| Posted: Sun Mar 15, 2009 5:52 pm Post subject: |
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Requires an updated VIM from what I'm understanding...
Nash's ears have already perked up. I think he even took a break from pimping his longbows to get into the details on those. 
I wouldn't be surprised if VDC gets a number of orders for these. Looks like a pretty nice part.
Dan
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stefuel
Joined: 07 Mar 2006
Posts: 3353
Location: Green Harbor MA USA
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| Posted: Sun Mar 15, 2009 5:55 pm Post subject: |
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| jask wrote: | | All you 'Quee owners must be feeling like kids at Christmas |
Untill they heard the answer to the six thousand dollar question (how much $$$)?
My guess is a set will likely cost more than you paid for the whole projector
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Chip
A Barco is only a AmPro with training wheels
Card carrying member of the AVS chain gang.
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Sun Mar 15, 2009 6:11 pm Post subject: |
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| AnalogRocks wrote: | | I think Nashou's ear's just perked up |
Mike parker, HK-Steve, Jarmmo and I have been looking over the schematics.
Scott mentioned something that was different and then I noticed something else,
at first mike over looked it but then he saw what I saw and dove right into it and tried it on the old style VNB's.
I got a headache looking those over and comparing. 
But VDC ran out of the Motorola stock of High frequency transistors that wre the main parts of the casscoding
Amp design. so Sorta out of necessity Scott had to design the same style Amp around new components and i assume used what he has learned over the years of working on the marquee to improve upon the already excellent design.
With regards to cost of them i have no idea but i assume 1000-1600 each like the old style.
But now that W hav the Schematics iI have been entertaining the thought of designing
PCB plan using eagle. it be easier if i had a VNB to look at. the pics he posted are not the best.
I dont think it be hard to draw them up, I need to practice some more.
Athanasios
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"Republicans believe every day is the Fourth of July, but the Democrats believe every day is April 15." --- President Reagan
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Marquee High Performance Bellows now shipping!!
Marquee Modifications and Performance Enhancement
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draganm
Joined: 08 Mar 2006
Posts: 8990
Location: Colorado
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| Posted: Sun Mar 15, 2009 6:26 pm Post subject: |
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I think it's cool to find they have been using the same caps on the main power rails that we have been putting on our old neck-cards here for some time. I think it's the same 22uf Nichikon 160 Volt I've been installing for over a year now.
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Blorton
Joined: 27 Jan 2009
Posts: 105
Location: Hotlanta, GA
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| Posted: Sun Mar 15, 2009 6:30 pm Post subject: |
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| Nashou66 wrote: | But now that W hav the Schematics iI have been entertaining the thought of designing
PCB plan using eagle. ... I dont think it be hard to draw them up, I need to practice some more.
Athanasios |
While you are at it, make us some turn key drop in boards for alternative tubes as well.
Dan
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Sun Mar 15, 2009 6:38 pm Post subject: |
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| draganm wrote: | | I think it's cool to find they have been using the same caps on the main power rails that we have been putting on our old neck-cards here for some time. I think it's the same 22uf Nichikon 160 Volt I've been installing for over a year now. |
Cadok(spelling?) resistors are highly regarded in the audiophile field as power resistors. You'll be hard pressed to find a better 15watt power resistor.
Athanasios
_________________
Don't blame your underwear for your crooked ass~ unknown Greek philosopher
"Republicans believe every day is the Fourth of July, but the Democrats believe every day is April 15." --- President Reagan
One Smart Dog!!!
Marquee High Performance Bellows now shipping!!
Marquee Modifications and Performance Enhancement
Marquee C-element and Bellow removal
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