Page 2 - Triwatt Custom Lead Amp Builder's Guide

Table of Contents

Table of Contents ............................................................................................................................................................................ 2
Introduction ...................................................................................................................................................................................... 5
Acknowledgements .......................................................................................................................................................................... 5
WARNING ...................................................................................................................................................................................... 6
Please Read this Information Carefully ...............................................................................................................................6
Version Control ................................................................................................................................................................................ 8
Custom TRIWATT Lead Description ......................................................................................................................................... 9
Guitar Amplifier Basics ................................................................................................................................................................. 12
Distortion ................................................................................................................................................................................... 13
General Amplifier Operation .................................................................................................................................................. 15
Some DO NOTS ...................................................................................................................................................................... 15
Some DOs .................................................................................................................................................................................. 15
Introduction to Vacuum Tubes and Common Terms ............................................................................................................ 16
Introduction ............................................................................................................................................................................... 19
Switches and wire ...................................................................................................................................................................... 19
Physical layout ........................................................................................................................................................................... 19
Grounding .................................................................................................................................................................................. 19
Insulated jacks ........................................................................................................................................................................... 20
Minimizing transformer interference ..................................................................................................................................... 20
Wiring ......................................................................................................................................................................................... 20
Assembling the amp ...................................................................................................................................................................... 20
Before You Begin ..................................................................................................................................................................... 20
Tools ........................................................................................................................................................................................... 20
Soldering ..................................................................................................................................................................................... 21
Tube Pin Numbering ............................................................................................................................................................... 21
Assembly Steps Summary ............................................................................................................................................................. 23
1. Install the Hardware ............................................................................................................................................................. 23
2 Wiring ...................................................................................................................................................................................... 27
Grounding Scheme .............................................................................................................................................................. 27
3 Install Transformers .............................................................................................................................................................. 31
4 Power Supply Wiring ............................................................................................................................................................ 32
Test the Power Transformer .............................................................................................................................................. 35
5 Turret Board Construction .................................................................................................................................................. 36
6 Connecting the Turret Board .............................................................................................................................................. 39
7 Connecting the Turret Board to Controls ......................................................................................................................... 40
8 Output Transformer - Output Jacks .................................................................................................................................. 41
9 Input Jacks .............................................................................................................................................................................. 43
Input to V1 ........................................................................................................................................................................... 45
9 Final checkout ........................................................................................................................................................................ 46
10 Power Up .............................................................................................................................................................................. 47
WARNING .................................................................................................................................................................................... 52
Please Read this Information Carefully ............................................................................................................................ 52
Troubleshooting ............................................................................................................................................................................. 53
Hum ............................................................................................................................................................................................ 53
Volume Test .............................................................................................................................................................................. 53
Faulty tube .................................................................................................................................................................................. 53

TrinityAmps TRIWATT Builders Guide Ver. 2.31.docx
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