Well, here another image from Ebay. 150cm searchglights or RRH souns locators ?

Sturm78
Ummhhh....I am not sure that the generator of my image be the same that the genartor on Kfz.74 truck of your image. I can see some differencies....Angel wrote
I can't name the Notstromaggregat for sure, but I've seen the generator being used in a Notstromaggregat, mounted on the KdoGer.35 carrying truck(Kfz.74).I think it is an early(meaning mid 30's) generator:
Thanks for your answers, AngelAngel wrote
With regard to your latest picture-
I think these are RRH's- a "dome" is visible on their canvased tops, where the counterweight(18-Gegengewicht) protrudes above the plane of the Ringtrichter: