At 01:59 PM 2/4/2002 -0600, you wrote:
>Hi Dave
>I think if you could find a neon light company or some one who makes neon
>lights you can find what kind of transformers or used in the Zone VI as I
>believe that is what the light source is in their cold light head. I know
>there not very complex as I have been inside them to see how they were made.
>Ron
>www.ronbakerphotography.com
>----- Original Message -----
>From: "Dave Schneider" <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Sent: Monday, February 04, 2002 11:55 AM
>Subject: RE: [Cameramakers] Re: Cold Light Head Construction
>
>
>> Steve,
>>
>> I think the Zaon VI controller measures the light output and then adjusts
>> the time to compensate. I don't think the light is adjusted. Can't help
>you
>> much on the necessary electronics to drive a flourescent lamp.
>>
>> -----Original Message-----
>> From: Steve Goldstein [mailto:[EMAIL PROTECTED]]
>> Sent: Monday, February 04, 2002 11:45 AM
>> To: [EMAIL PROTECTED]
>> Subject: [Cameramakers] Re: Cold Light Head Construction
>>
>>
>> On a related front...
>>
>> Does anyone know where I can find out the principles of how to
>> (electronically) control a cold light tube? I'd like to build
>> something like the Zone VI controller for a 5x7 cold light head
>> I got a few months ago (no, it's not for sale). I'm an electrical
>> engineer so schematics or even a reasonably accurate description
>> would suffice. I realize the system works by monitoring light
>> output and comparing that to a reference voltage, what I really
>> need to know is how to actually drive the lamp.
>>
Dave,
The lamps use a pre-heated cathode. A knowledgeable neon glass outfit could
make it. The system works like an auto strobe and turns of once the pre-set
illumination has been achieved. There are some very nice timers available
that do that you could reverse-engineer I suppose.
AZ
Maker of Lookaround panoramic camera.
www.geocities.com/soho/gallery/8874/
or
keyword.com lookaround
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