From: Kingston upon Thames, UK
Registered: Jul 2013
posted November 10, 2017 12:29 PM
Hi Dominique, it looks like a homemade modification to provide a brighter light. A one-off in my opinion, possibly adapted from a small magic lantern. No doubt the brighter lamp would play havoc with the notched frames! A nice unusual find.
From: Brussels, Belgium
Registered: Jun 2013
posted November 10, 2017 01:40 PM
Thank you for your answer, Chris. The seller says he didn't test the projector because he has no 220 to 110 v convertor so he probably doesn't know anything about what he's selling.
From: Bristol. United Kingdom
Registered: Oct 2007
posted November 11, 2017 04:18 AM
As Chris says, the lamp conversion could play havoc with notched films, unless the new lamp is of a similar wattage to the original lamps. These started life as 12volt 6watt, then 20volt 10watt, and lastly, the type D lamp which was 20volt 20watt. However, whilst the last mentioned was a substantial improvement in light output the increased heat damaged the notched titles.
Registered: Oct 2012
posted November 11, 2017 04:06 PM
Looking forward to the day when there are suitable LED's for these old projectors. Cold light with an output of the equivalent of 100w or even 50w. Surely it can only be just around the corner?
From: Herne Bay, Kent. U.K.
Registered: Oct 2011
posted November 16, 2017 11:28 AM
I agree with Maurice. Notch titles would blister with the increased heat from the modified lamp output. Yes Terry, an LED is the way to go. I am sure it will not be long, the rate they are improving. As mentioned in the forum many times, in the meantime a 12 volt 10 watt Halogen is the most suitable substitute for the original. Ken Finch.