Re: SW Death Star Blooming

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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>>>
>>>
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>>
>>
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Received on Fri May 19 19:34:34 2006