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(up)date item size
2000-04-11 Osram Eisen und Konstantan Widerstande. ☆Robert Schmalstieg597,524 bytes (de)
2000-04-11 Osram Glimm Indikator Röhren. ☆Robert Schmalstieg149,071 bytes (de)
2000-04-11 Osram Urdox und Eisen-widerstände für Rundfunkgeräte. ☆Robert Schmalstieg598,016 bytes (de)
2004-04-17 Osram Valves - 1936-1937Chris Colebrook15,085,712 bytes
2006-07-23 Every Radio-Man's Pocket Reference Osram valve guide and book of circuits 1938. ☆David Porter3,569,467 bytes
2013-04-15 Every Radio-Man's Pocket Reference Osram valve guide and book of circuits 1934. 20,870,547 bytes