Signal Service (France) Technical Instructions No. 5 Power Buzzer-Amplifier, November 1917

Signal Service (France) Technical Instructions No. 5 Power Buzzer-Amplifier was issued by the Signal Service (France) during the First World War.

Contents are

I - Theoretical Considerations

II - Transmitting Apparatus - The Power Buzzer

III - Receiving Apparatus - The Amplifier

IV - Bases

V - Ranges

VI - Compasses

VII - Preparation of a Power Buzzer Station and Power Buzzer Amplifier Station for an assaultFirst Charge of a New Battery

VIII - Method of laying out Stations

IX - Preparations to be taken

X - Hints on use of Power Buzzer and Amplifier