Van Daal Electronis Compact Phasing 'X'
This is a copy of the Schulte Compact Phasing A. It is a bit smaller in size, but sounds very much alike. It is based on the Jürgen Haible Compact Phasing Clone. There are other versions available with switchable number of stages. I don't know, if the top lamp was an extra or not. It is not featured on newer units.
Left the Van Daal Compact Phasing 'X', a real vintage Schulte Compact Phasing 'A' of a friend to the right
The backsides: the Van Daal Compact Phasing 'X' to the right