go to http://www.classicbroadcast.de/telefunken_download.html
then press contr+f for searching the site.
Enter just LW 638 (the space is important!) in the mask and you'll hit
immediately the pdf link for download.
>From: [email protected]
>[mailto:[email protected]] On Behalf Of
>Sent: Sunday, August 13, 2017 8:50 PM
>Subject: LF: Telefunken
>I have got very interesting VLF adapter: TELEFUNKEN - LW 638.
>All my efforts to find any technical info on the internet
>were to no avail - I was not successful.
>I need your help very badly! Is it possible to find a scheme
>and more info?