Here you can find the technical reference manual scanned and converted into PDF format.
For practical reasons it’s in several parts.
Telefunken Reference Manual (German) Part1
Telefunken Reference Manual (German) Part2
Telefunken Reference Manual (German) Part3
Telefunken Reference Manual (German) Part4
Telefunken Reference Manual (German) Part5
Telefunken Reference Manual (German) Part6
Telefunken Reference Manual (German) Part7
Telefunken Reference Manual (German) Part8
Telefunken Reference Manual (German) Part9
Telefunken Reference Manual (German) Part10
Telefunken Reference Manual (German) Part11