Page 3 - Triwatt Custom Lead Amp Builder's Guide
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Severely unmatched output tubes in a push pull amplifier ................................................................................................ 54
Faulty power supply filter caps ............................................................................................................................................... 54
Faulty bias supply in fixed bias amplifiers ............................................................................................................................. 55
Unbalanced or not-ground-referenced filament winding ................................................................................................... 55
Defective input jack .................................................................................................................................................................. 55
Poor AC grounding .................................................................................................................................................................. 55
Induced hum .............................................................................................................................................................................. 55
Poor internal wire routing ....................................................................................................................................................... 56
Poor AC Chassis Ground at Power Transformer ............................................................................................................... 56
Defective internal grounding .................................................................................................................................................. 56
Hiss .............................................................................................................................................................................................. 56
Metal Film Resistor Substitutions .......................................................................................................................................... 56
Squealing/Feedback ................................................................................................................................................................. 57
Radio Interference .................................................................................................................................................................... 57
Scratchy Sounds on Potentiometer(s) .................................................................................................................................... 57
Amp Buzz or Rattle When Installed in Cabinet .................................................................................................................. 58
More Tips for fine tuning your amp ...................................................................................................................................... 60
Running EL34 Tubes in the TRIWATT ............................................................................................................................... 61
Installing a Passive Effects Loop ........................................................................................................................................... 62
First the code ........................................................................................................................................................................ 64
How to read the Color Code ............................................................................................................................................. 64
Appendix 7- TRIWATT Overdrive Footswitch ....................................................................................................................... 72
Trinity Amps Schematics and Layouts ....................................................................................................................................... 76
TrinityAmps TRIWATT Builders Guide Ver. 2.31.docx
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