Instruction Manual

DE
DANIELS
ELECTRONICS
VT-3A130 Amplifier Instruction Manual iii
TABLE OF CONTENTS
Page
1 GENERAL.................................................................................1-1
1.1 Introduction ..........................................................................1-1
1.2 Performance Specification..........................................................1-1
2 THEORY OF OPERATION.............................................................2-1
2.1 General ...............................................................................2-1
2.2 Power Requirements................................................................2-1
2.3 RF Circuitry..........................................................................2-1
2.3.1 VT-3/150 Lowpass Filter .......................................................2-2
2.4 Power Supply Circuitry. ...........................................................2-2
3 VT-3A130 AMPLIFIER ALIGNMENT ...............................................3-1
3.1 General ...............................................................................3-1
3.2 Repair Note ..........................................................................3-1
3.3 Printed Circuitboard Numbering Convention....................................3-1
3.4 Recommended Test Equipment List...............................................3-2
3.5 VT-3A130 Amplifier Alignment...................................................3-2
3.5.1 General ............................................................................3-2
3.5.2 VT-3A130 Amplifier Adjustment ..............................................3-2
3.5.3 Changing Power Output.........................................................3-3
4 ILLUSTRATIONS AND SCHEMATIC DIAGRAMS ..............................4-1
4.1 VT-3A130 Amplifier................................................................4-1
4.1.1 VT-3A130 Amplifier Component Layout .....................................4-2
4.1.2 VT-3A130 Amplifier Schematic Diagram .....................................4-3
4.2 VT-3A130 Lowpass Filter .........................................................4-5
4.2.1 VT-3A130 Lowpass Filter Component Layout...............................4-5
4.2.2 VT-3A130 Lowpass Filter Schematic Diagram...............................4-5
5 PARTS LISTS............................................................................5-1
5.1 VT-3A130 Amplifier Electrical Parts List ........................................5-1
5.2 VT-3A130 Lowpass Filter Electrical Parts List..................................5-4
5.3 VT-3A130 Amplifier Mechanical Parts List......................................5-4
6 REVISION HISTORY ...................................................................6-1