The sound of bad filter caps - hum and ghost notes. - YouTube
Peavey VB-2 Why is my Tube Amp Humming/Buzzing? - Replace the Power Supply Filter Capacitors! - YouTube
Eliminate RF in a Tube Amp Part 2 - YouTube
Capacitor - Wikipedia
El34 Kt88 Tube Amplifier | Transformers Tube Kt88 | Power Amplifier Board - 6u8 El34 - Aliexpress
What Do Filter Caps Do? — Tropical Fish
SATRI Circuit Laboratory FIL-3102 Digital Noise Reduction RF Filter – ExAUDIO
RF Blocker — connected-fidelity
Case studies: Eliminating RF interference
Tracking back 100Hz hum in a tube guitar amp
Using Capacitors to Filter Electrical Noise | Arrow.com
Valve RF amplifier - Wikipedia
That Elusive Valve Amp Sound, For Not A Lot! (There Has To Be A Catch) | Hackaday
What Does This Thing Do? -- Filter Capacitors
Using Capacitors to Filter Electrical Noise | Arrow.com
Capacitor Selection for Coupling and Decoupling Applications
Bobs 5Watt tube guitar amp
Safety
Making a Capacitor Discharge Tool // Discharge Capacitors in a Tube Amplifier // Tube Amp Safety - YouTube
Build an Amp
FILAMENT POWER SUPPLY COMMON MODE NOISE
The Cool Sound of Tubes - IEEE Spectrum
Using Capacitors to Filter Electrical Noise | Arrow.com
Using Capacitors to Filter Electrical Noise | Arrow.com
Increasing Filter cap values
The Valve Wizard
Death Cap
