Bottlehead Crack - Table of Contents

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TABLE OF CONTENTS

DISCLAIMER OF LIABILITY AND SAFETY NOTES

ACKNOWLEDGEMENTS

BRIEF CIRCUIT THEORY

AMPLIFIER SCHEMATIC

ASSEMBLY

TOOLS AND ADDITIONAL MATERIALS YOU WILL NEED 8

PARTS CHECK LIST 9

Chassis hardware locations 10

PART ONE - BUILDING UP THE CHASSIS 11

Power entry module, Power switch, RCA Jacks 11

Safety ground, volume potentiometer, headphone jack 12

Octal socket, Nine pin miniature socket 13

Power transformer 14

Competed hardware layout 15

PART TWO—CHASSIS WIRING 16

AC ground buss, AC mains and power switch wiring 17

Twisted pair wiring, Heater wiring 18

Input wiring 20

Attenuator wiring 21

Nine pin socket A wiring 23

Octal socket B wiring 24

PART THREE - COMPONENT INSTALLATION 25

Plate load resistors 25

B+ (high voltage) Power Supply 26

Full Wave Bridge rectifier 27

Filter Capacitors 30

Output stage components 31

COMPLETED AMPLIFIER 36

RESISTANCE CHECK

VOLTAGE CHECK

BASIC TROUBLESHOOTING 39

GUARANTEE