Fig. 78.--5- to 50-watt C. W. Telegraph Transmitter (with a Single
Oscillation Tube)

Fig. 79.--200-mile C. W. Telegraph Transmitter (with Two Tubes in
Parallel)

Fig. 80.--50-watt Oscillator Vacuum Tube

Fig. 81.--Alternating Current Power Transformer (for C. W. Telegraphy
and Wireless Telephony)

Fig. 82.--Wiring Diagram for 200- to 500-mile C. W. Telegraph
Transmitting Set. (With Alternating Current.)

Fig. 83--Wiring Diagram for 500- to 1000-mile C. W. Telegraph
Transmitter

Fig. 84.--Standard Microphone Transmitter

Fig. 85.--Wiring Diagram of Short Distance Wireless Telephone Set.
(Microphone in Aerial Wire.)

Fig. 86.--Telephone Induction Coil (used with Microphone Transmitter).

Fig. 87.--Microphone Transformer Used with Microphone Transmitter

Fig. 88.--Magnetic Modulator Used with Microphone Transmitter

(A) Fig. 89.--Wiring Diagram of 25--to 50-mile Wireless Telephone.
(Microphone Modulator Shunted Around Grid-leak Condenser)