Technical Library
- R50/5 parts manual (English language) (published 1969) (65.2 MB)
- R50/5 parts manual (Multiple language) (published 1972) (38.7 MB)
- R50/5 parts manual (English language) (published 1975) (71.9 MB)
- R50/5 parts manual (German language) (published 1975) (44.7 MB)
- R50/5 parts manual (Multiple language) (published 1975) (77.1 MB)