I'd like to get a brighter projection out of my super 8 projector. It's a Bell and Howell 346A and uses a 150watt DJL bulb. On the side of the projector it says it can handle 100 to 500 watt bulbs. So, my question: can I use a different type of bulb in my projector? Like if I found a 500 watt bulb with a different 3-letter code, and it fit in the socket, could I use it? If no, how can I find out what bulbs I can use in that projector?
Thanks for your help
projector bulb
Moderator: Andreas Wideroe
the models 606H and 625 as sold in the UK were equipped with 500 volt lamps. The UK classification is A1/7. It is 110 volts so is obviously US in origin. I do not know if these have different numbers in other markets.
Possibly DJL and A1/7 are the same bulb. If so you have a problem as I was told that they are very rare.
There was a battery powered model that used a 32 volt 200 watt bulb.
As a general rule using a lower wattage than the maximum is unlikely to cause a problem. Machines, like people, are often happier with the easy life, but seize up as well if not kept working!
Possibly DJL and A1/7 are the same bulb. If so you have a problem as I was told that they are very rare.
There was a battery powered model that used a 32 volt 200 watt bulb.
As a general rule using a lower wattage than the maximum is unlikely to cause a problem. Machines, like people, are often happier with the easy life, but seize up as well if not kept working!
New web site and this is cine page http://www.picsntech.co.uk/cine.html
The general solution to older projection lamps is to replace them with 12 V halogen bulbs. Power supplies for 12 V decor spots are cheap and the electronic version will fit in most projectors. Bases for 12 V lamps are readily available and it is usually quite simple to make an adaptor fom the old bulb base to put the filament AT THE SAME HEIGHT.
Note that a 12 V, 100 W halogen lamp will generally give a brighter picture due to its smaller filament.
Note that a 12 V, 100 W halogen lamp will generally give a brighter picture due to its smaller filament.
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Guest
The best brightness with halogen mirror lamps can be achieved with 15 V / 150 W lamps (or the special 200 W Elmo lamp) The standard 24 V/250 W lamps as used in 16 mm machines are even dimmer.
All lamps must shine direcly onto the film surface (without condesor lenses in between) and the distance between the film surface and the reflector base has to be adjusted exactly. Each wattage needs another distance to focus exactly onto the gate.
Pedro
All lamps must shine direcly onto the film surface (without condesor lenses in between) and the distance between the film surface and the reflector base has to be adjusted exactly. Each wattage needs another distance to focus exactly onto the gate.
Pedro