Telegraph engineering : a manual for practicing telegraph engineers and engineering students (1922)
Hausmann, Erich, 1886- · New York : D. Van Nostrand Company · leaf 201
on * Described in H. J. van der Bijls Thermionic Vacuum Tube and ItsApplications, and in books on radio communication. i86 TELEGRAPH ENGINEERING possible, consist of inductance coils and condensers ofappropriate size and manner of connection so as to transmitcertain frequencies or bands of… … Receiver . ,.,. ■ Tuned Transmitter __^Pl*e* .... Circuit Oscillator orAlternator !-!-—! I ! Rectifier —I 2-Stage —Amplifier TunedCircuit Filterunder5500fi! 6800 Cycles 5250 Cycles J 6500 Cycles 5500 Cycles [FilterIover6500 Telegraph Circuit 3R^JiirJeleph6neCir^^^ fchrfe^HeJDiUiaL over3000…
Telegraph
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