TM 11-2587: Amplifier General Radio Model 715 AM

TM 11-2587 Amplifier General Radio Model 715 AM

TM 11-2587

Amplifier General Radio Model 715 AM

Army · TM · Mar 1946 · 20 pages

About

OPERATING INSTRUCTIONS FOR TYPE 715-A DIRECT-CURRENT AMPLIFIER PART 1 PURPOSE The Type 715-A Direct-Current Ampli- -fier is designed to be used as a calibra—- ted d-c millivolt meter or microammeter in the measurement of small d-c voltages and currents. It is also designed for use with a 5-milliampere d-c recorder for the of any electrical translated into recording of variations quantity which may be variations in small d-c currents. The amplifier is completely a-c operated from 115/230-volt, 60-cycle supply. No bat- teries of any kind are used. PART 2 ADVANTAGES 1. High sensitivity - 100 millivolts invut gives full scale output current of 5 milliamperes on the most sensitive ad- justment. (Transconductance equal to 50,000 micromhos, ) 2 Stable operation = Freedom from drift caused by supply line voltages. 3.

DesignationTM 11-2587

EditionMar 1946

StatusSuperseded

Pages20

FunctionComms Signal

CollectionHistoric

Public domain (U.S. Government work)