Index to the Tube Amp FAQ
Basics of Tube Amp Use
Learning about Tube Amps
Parts for Tube Amps
Carbon Comp Resistors - is the Mojo real?
Extend Tube Life
How do I get..
Good distortion at lower volumes
Plans for speaker cabs
Why do output transformers sound different?
Impedance tolerances and tone
Paper VS Plastic bobbins
Differences in transformer sound
Copying a transformer
Hand winding vs machine winding
What are gaps in a transformer?
Push-pull OT in single ended amp?
"Ultralinear" output transformer
Convert ultralinear normal use?
Sub two SE transformers for single plate-to-plate transformer?
Reverse biased diodes as "transient spike preventers"
Pushpull output transformer as a single ended ultralinear output transformer?
"Impedance" of output transformer
Match speakers to output impedance?
Amp/output transformer/tubes W/ a mismatched speaker load?
Two single ended output transformers in a push-pull circuit
What causes differences in OT tone?
Output transformer - live or dead
Good replacement output transformer
DIY power and output transformers
Replace stock transformer
Potted / impregnated transformers better
What is the easiest way to get tube sound at a good price?
How can I modify my tube amp to ... ? (also see recommended mods, below)
What is bias?
When to bias?
How to bias
Matched tubes - do you need them?
Tube characteristics and Substitutions
Dirt and dust
Appendix A - Tube stuff suppliers
Appendix B - Tube makers today.