Tracking back 100Hz hum in a tube guitar amp
Using Capacitors to Filter Electrical Noise | Arrow.com
Using Capacitors to Filter Electrical Noise | Arrow.com
Boyuu hifi Equis A10 EL34B+6N2 SE Tube Amplifier with 5Z4P rectifier: review and mod | diyAudio
transistors - Ultra low noise power supply for pre-amp - Electrical Engineering Stack Exchange
Using Capacitors to Filter Electrical Noise | Arrow.com
Death Cap
A Simple Linear Power Supply, Done Well | Hackaday
Valve RF amplifier - Wikipedia
Has anyone gotten substantiated RF reduction from ferrite beads? | The Gear Page
RF noise filtering
The Great Standby Switch Myth | Sweetwater
That Elusive Valve Amp Sound, For Not A Lot! (There Has To Be A Catch) | Hackaday
Getting to Know the Bypass Capacitor, January 1962 Popular Electronics - RF Cafe
Easy solutions to Radio Frequency Interference
The AA8V/W8EXI 6CL6 One-Tube Transmitter - Schematic Diagrams and Circuit Descriptions
Capacitors | Tubelab
The sound of bad filter caps - hum and ghost notes. - YouTube
The Worst Filter Capacitors I Have Ever Seen.....and Heard :) - YouTube
Capacitor - Wikipedia
Common Tube Amp Malfunctions: My amp doesn't turn on. — Tropical Fish
Troubleshooting
Build an Amp
