Re: SW Death Star Blooming

I was under the impression it didn't bloom but rather went out of focus.

----- Original Message -----
From: "simon" <simonjhanlon@btopenworld.com>
To: <vectorlist@vectorlist.org>
Sent: Friday, May 19, 2006 10:32 PM
Subject: Re: VECTOR: SW Death Star Blooming

> an old subject I know but today I repaired an Amp HV with a good Red and
> thought It would be interesting to compare voltages to the WG6100 mod I
> did a while back. On death star explosion there is no blooming with a good
> red/capacitors...I heard it was designed into the game but on this one the
> HV stays steady as a rock, with no change in picture size during the
> explosion. Has anyone else noticed this?
> ----- Original Message -----
> From: "simon" <simonjhanlon@btopenworld.com>
> To: <vectorlist@vectorlist.org>
> Sent: Thursday, March 30, 2006 10:34 AM
> Subject: Re: VECTOR: SW Death Star Blooming
>
>
>>I checked the B+ while the DS explodes and it drops 30v for a second then
>>recovers.
>>
>>
>> ----- Original Message -----
>> From: "Mark Shostak" <xx.vl@cinelabs.com>
>> To: <vectorlist@vectorlist.org>
>> Sent: Wednesday, March 29, 2006 1:44 PM
>> Subject: Re: VECTOR: SW Death Star Blooming
>>
>>
>>> On Wed, Mar 29, 2006 at 07:09:30AM -0500, Christopher X. Candreva wrote:
>>>> On Wed, 29 Mar 2006, simon wrote:
>>>>
>>>> > I noted the other day that as on most vector monitors during the
>>>> > death
>>>> > star explosion some blooming is noticeable. I have heard that this
>>>> > was
>>>> > intentional, I find this hard to believe. I just rigged up my HV
>>>> > probe on
>>>> > my SW so that I could read the EHT during game play. it was rock
>>>> > steady at
>>>> > 19.5KV until the explosion...it dropped by 4kv!! I thought as much.
>>>> > This
>>>> > must be due to the amount of white screen. Can someone else check
>>>> > their
>>>>
>>>> Actually as I recall, this was on purpose. In the death start explosion
>>>> the
>>>> HV is lowered to defocus the display, to add to the explosion effect.
>>>>
>>>> Now this could be a case of saying "It's not a bug, it's a feature !".
>>>
>>> For those who weren't around, or forgot, here are Jed's comments on the
>>> topic:
>>>
>>> In order to have the Death Star explode the way we wanted it to, it
>>> wasn't enough to draw lots of concentric circles. We wanted to defocus
>>> the beam to fill it in. We briefly considered adding a vacuum tube to
>>> the monitor to control the Focus Voltage. Fortunately, the lead time for
>>> the part was too long. So what I did was to give the Vector Generator
>>> the ability to overdrive the monitor's color inputs. Overdriving the
>>> inputs causes the CRT to draw more current than it normally uses and
>>> drags down the High Voltage., which changes the normal ratio of Focus
>>> Grid voltage to Anode voltage, which defocuses the beam. This
>>> relationship is explained in The Secret Life of XY Monitors.
>>>
>>> The entire text is here: http://www.jmargolin.com/vgens/vgens.htm#Star
>>>
>>> -Mark
>>>
>>>
>>>
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>>
>>
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>>
>
>
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Received on Fri May 19 19:21:40 2006