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(up)date item size
2003-04-01 Contitions d'emploi des stabilisateurs de tension 1956 - Operating conditions for voltage stabilizers. ☆Stéphane Maréchal2,423,233 bytes (fr)
2003-04-01 Utilisation des tubes batteries 1955 - Usage of battery tubes. ☆Stéphane Maréchal1,522,693 bytes (fr)
2022-04-03 Operating conditions for voltage stabilizers OA2 and OB2, 1956, 25 pages. ☆Patrick Binon11,671,230 bytes (fr)
2022-04-03 Electrometer Tubes 1956, 24 pages. ☆Patrick Binon11,168,058 bytes (fr)
2022-04-03 Use of Thyratrons 2050 & 2D21 1951, 18 pages. ☆Patrick Binon9,259,833 bytes (fr)