Re: SW Death Star Blooming

How much of the effect you'll get will be determined by how you have
brightness set.
Too low brightness=no/little defocussing.
Too much brightness=extreme defocus or blooming.

Scott Caldwell wrote:

> I believe that's correct and mine does do that a little. I haven't
> measured it during
> that time to know if the voltage is dropping, however.
>
> Scott C.
>
> Alpha1 wrote:
>
>> 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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Received on Fri May 19 21:12:13 2006