Видео с ютуба 6.3V Filament Supply

6.3v 1200va filament transformer

what voltage will blow up tube filament? in case of KT88 tube audio amplifier

Tube amplifier: why heater connection to ground is important

Changing The Voltage On A Filament Transformer

EL36 vacuum tube ONLY filament lightup test at 5V 200mA DC

Free tube Filament supply from Microwave Transformers.

Вариант дорогостоящего лампового гитарного усилителя с трансформаторами Hammond против Triad N-68...

Class A Amp - Hum eliminated, bias data & testing.

Admiral 23" Replacement NOS CRT Box Opening.

Maco KW 300 modded to 6v filament tubes from 8950 to 6lf6 6kn6 tubes, quick test/keydown at the end

Experiment : 2 tubes super hetrodyne radio work in 6.3V anode voltage.

Liang Zhu from IWISTAO 2X40W Vacuum Tube Amplifier Pull Push FU29 Power Stage 6N2 Preamp Bluetooth 5

Simple power supply curcuit diagram for the amplifier.

Electron Valve 6N8S

Electron Valve EL34

simple tube DC tester ECC81 ECC82 ECC83 explained and compared with AVO VCM163

Microwave Oven Transformer Conversion for 4-400A Tube Filament Supply

Learn by building a vacuum tube intercom 01

Installing a LED Halo Lighted Switch in a Tube Amp