There is more to come...
I purchased th following receivers: One more Collins, the "A" type R390A, and four german receivers:
Collins R390A:

Two of Siemens E310 "Rainbow" (... don´t ask why ...) type:

A Siemens E309, the first reliable post WW2 german receiver:

and a Telefunken E863 KW2 from the seventies (...Solidstate)

Detailed pictures / videos will come during the next month.