Yes, the one by John Preston of Australia. In the original, the fuel would run through the entire loop due to the internal contruction. Its pretty complicated to manufacture too, because of the need to incorporate the cleaning needle rod assembly in a separated chamber or path so as not to obstruct the fuel flow through the loop. Some other generators might look like the original flat or 'equi-level' loop but they aren't the same. For example, in some of the Primus models. Those are pseudo-loops in which the fuel don't pass through and they only act as heat storage/sink.
The "real" alcohol version can be seen in my post over here. It also employs an air restrictor in order to obtain the correct fuel/air ratio. With this mounted it runs quite good, but the consumption is far more than the kerosene version of course. Only 4 - 5 h burning with a full tank. And the dating should be correct. From a certain time on, the use of some metals was prohibited/restricted in order to make them available for weapons production. Therefore, at first, nickel plating was not used, as this only concerned optical aspects and, to a lesser extent, durability. Later, the use of brass, which was needed for bullet casings, for example, was also restricted.
I'm new here and got here while trying to identify my recent acquisition. Thanks to you I now know it's a Ditmar 501 and also that its top cover is missing. Does anybody know where it can be bought/made? My D 501 has been painted over and served as a decorative item for many decades so your superb restoration serves me as invaluable encouragement when I need it most. Thanks.
