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A small selection of freely available documents.
Story of my Siemens E311 repair
Siemens radio receiver Rel 445 E311a & b, May 1964, part 1, text (tnx Francesco Sartorello)
Siemens radio receiver Rel 445 E311a & b, May 1964, part 2, text (tnx Francesco Sartorello)
Siemens radio receiver Rel 445 E311e, November 1968
Repairing Tektronix 7603 power supply
Tektronix key labels template (Word)
Tektronix 7854 ROM kit (Gerber & 27256 images)
Telefunken radio receiver E863 manual (thanks to Francesco Sartorello)
Telefunken radio receiver E863 schematic diagram /tnx Francesco Sartorello)
Tektronix DSA 602A Physical Block Diagram
Tektronix DSA 602A Boards Layout
Tektronix 11302 logical block diagram
Tektronix 11302 CRT partial schematic
Collins Radio KWM-2 schematic diagram
Collins Radio KWM-2 block diagram
Collins Radio 30L-1 schematic diagram
Collins Radio 51S-1 block diagram
7603 board interconnect corrected (TEO pages 170–171)