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Kenwood TL-911 User Manual

Kenwood TL-911
25 pages
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Kenwood TL-911 Specifications

General IconGeneral
Input Impedance50 ohms
Output Impedance50 ohms
CoolingForced Air
TypeHF Linear Amplifier
ModeSSB, CW, FM
Tube3-500Z

Summary

FEATURES

EXTERNAL VIEW

TOP CHASSIS VIEW

BOTTOM CHASSIS VIEW

CIRCUIT DESCRIPTION

OUTLINE

Overview of the TL-911 linear amplifier circuit, its components, and unitized sections.

FINAL POWER AMPLIFIER SECTION

Details the Class AB/C operation, shielding, cooling, dynamic balance, ALC, and SWR meter circuits.

POWER SUPPLY SECTION

Describes the power transformer, bridge rectifier, and voltage distribution for bias and relays.

OPERATION OF PROTECTION CIRCUIT

Explains the overcurrent detection circuit, thyristor activation, and relay actions to protect tubes.

TROUBLESHOOTING

CONNECTING REMOTE CABLE

ADJUSTMENT - REQUIRED MEASURING INSTRUMENTS

ADJUSTMENT - SCREEN GRID VOLTAGE

ADJUSTMENT - BASE CURRENT BALANCE

ADJUSTMENT - PLATE CURRENT BALANCE

ADJUSTMENT - PROTECTION CIRCUIT

ADJUSTMENT - PROTECTION TIME

ADJUSTMENT - IP METER CALIBRATION

ADJUSTMENT - SWR METER CALIBRATION

VOLTAGE MEASUREMENTS OF TUBES AND TRANSISTORS

PARTS LIST OF TL-911

PARTS LIST OF CONTROL UNIT X53-1000-00

PARTS LIST OF RECTIFIER UNIT X43-1010-00

PC BOARD OF CONTROL UNIT X53-1000-00

SCHEMATIC DIAGRAM

SPECIFICATIONS

COLOR CODE

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