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Wireless Vacuum Tubes

From the Preface:The present volume has been written expressly for the student, experimenter and operator who desires not only to know the fundamental principles underling the action of the thermionic vacuum tube, but wishes to have placed before him the actual circuits used in practice.The cover and FEP are somewhat soiled but the interior is clean and clear.There are 15 pages of related advertisements at the rear.Owner\'s name on the Contents page.

£4.99