DEPARTMENT OF THE ARMY TECHNICAL BULLETIN

TB 11-6625-2488-50/1

DEPARTMENT OF THE ARMY TECHNICAL BULLETIN

CALIBRATION PROCEDURE FOR

FIFTY WATT AMPLIFIER

KROHN-HITE, MODEL DCA-50

Headquarters, Department of the Army, Washington, D. C.

21 July 1970

Paragraph

Page

Section I. GENERAL

Purpose and scope ................................................ 1

Reporting of equipment publication

improvements .................................................... 2

Descriptive data .................................................... 3

General instructions................................................ 4

II. CALIBRATION

Equipment and accessories required ..................... 5

Preliminary procedure ........................................... 6

Square-wave response .......................................... 7

Distortion................................................................ 8

Power output ......................................................... 9

Output regulation ................................................. 10

Voltage gain and frequency response .................. 11

Final procedure ................................................... 12

III. SPECIFIC ITEM IDENTIFICATION

Identification ......................................................... 13

Secondary transfer calibration standards set ....... 14