Re: SW Death Star Blooming

Not on the amp board running a 6100 transformer, whatever the brigtness is
set at it still drops around 5kv during the explosion
----- Original Message -----
From: "Rodger Boots" <rlboots@cedar-rapids.net>
To: <vectorlist@vectorlist.org>
Sent: Saturday, May 20, 2006 2:12 AM
Subject: Re: VECTOR: 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 Sat May 20 02:20:31 2006