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Author
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Topic: HTI Question to Beaulieu Owners.
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Andrew Woodcock
Film God
Posts: 7477
From: Manchester Uk
Registered: Aug 2012
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posted April 04, 2017 10:34 AM
these Details are correct as Maurice has now explained.
It is around half the expected lifespan that other Metal Halide lamps I have previously come across, tend to last for, but it is far cheaper than those also.
Stuart, the reason why I figured I could bring this home on my twin track for around £200, is simply because I feel I would not need to spend on parts for a Dowser mechanism as I think I'd already have enough old working spares from old Disco lighting fixtures to be able to make a professional appearance and functioning Dowser for zero outlay.
The project would stand me at the cost for the outlay of the ballast and lamp and then just a few other electrical components from RS or Maplin to complete the work successfully I think.
Let's also remember, the fact this fits straight into the existing lamp holder etc, also helps.
This price point assumes I need no further cooling but this has been done before and proved successful by a projector
Specialist.
The Beaulieu built in fan is a highly efficient fan for exhausting the heat from the lamp and has all metal ducting acting as a fan cowl to safely do so without the risk of melting any plastic components anywhere.
The lamp house itself is also all metal with no risk from very high temperatures in there.
It would still interest me greatly though beforehand, to find out exactly what temperature these Xenpow H.I.D. lamps run at compared to the A1 232 Xenophot.
The twin track also only contains a fixed 3 bladed shutter.
2/3 bladed ones are still available, but as we know, at considerable cost.
If we factor this modification into the project to complete it, the overall cost for me would then look more like £500.
The Stereo model I have, does already contain a variable shutter, but as said previously, I do not feel these type of conversions lend themselves entirely to a one for all solution where the projection of film is concerned.
The HTI/ HID type very much lend themselves towards the screening of full features in one run, while the halogen lamp is the perfect type of lamp for all kinds of films projected in the home environment.
It powers up and down as often as you like, achieves full levels of brightness instantaneously,remains perfectly bright enough within the home for all screen sizes when on two blades and keeps the machine in its original authentic state.
It is for the above reasons why I would never for one moment, consider converting my Stereo model, but would then like to add an additional high intensity model alongside it, just maybe to use for exhibition hall use one day and for the feature full length runs in the home,especially for the all consuming scope screenings that really do test your lamp power to its limit.
For all of these reasons I figure I could use a high power model, but only so long as there is no additional fan noise incurred after carrying out the modification.
[ April 05, 2017, 07:31 AM: Message edited by: Andrew Woodcock ]
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"C'mon Baggy..Get with the beat"
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