[Premium-Rx] Siemens E311

[F3WT]

Hello ,
 
1°Has there been a discussion on this receiver( siemens E311 - I think one of if not last tube version on shortwave ) on this forum. 
Is there a way to find out by retrieval/ any search action on archive-files?

2° As anybody experience with  mixer substitution by 7360 beam deflection tubes and its IMDR ( intermodulation dynamic range )  improvements?

Thank you for any hint.

Pierre.
F3WT.