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Low Voltage, Filament High Current, Chassis Mount - 150 VA to 450 VA (265 Series) - Hammond Mfg.
filament wiring
Touch Plate Low Voltage 3000-PL Relay 4-Wire
Please Take A Look At My Princeton Build. Is it correct so far? | The Gear Page
Wiring Heater Filaments Circuits - YouTube
Crawls Backward (When Alarmed): Twisted Pair Filament Wiring for the Vibro Champ
MAINS AND FILAMENT WIRING
Help with PT wiring | Telecaster Guitar Forum
Vacuum Tube Virtual Ground or Center Tap & Elevated Heater Wiring Explained - YouTube
Crawls Backward (When Alarmed): Twisted Pair Filament Wiring for the Vibro Champ
Your preference on center taps?
Tube heater / filament transformer. 6.3V @ ~ 6A & 5V @ ~ 8A Both center tapped. | eBay
Boothill 5E3 Pilot Lamp Wiring (Filaments) | Telecaster Guitar Forum
p6429 chicago standard p-6429 filament transformer, primary voltage 115 v secondary voltage (ac) 6.3v 3.5a x 4 center tap, w08 | elliott electronic supply
On the Wurlitzer 120/700 Amplifier — Tropical Fish
Vacuum Tube Virtual Ground or Center Tap & Elevated Heater Wiring Explained - YouTube
Nolatone Quality: filament wiring - YouTube
Newbie power supply section help needed | diyAudio
Artificial Center Tap Ground Placement | Telecaster Guitar Forum
Deluxe Micro
Virtual center tap - on what tube? (5E3) | Telecaster Guitar Forum
Bassman Micro "Artificial 6.3v Center Tap Only if needed" | Telecaster Guitar Forum
The Valve Wizard
Questions about the 100 ohm resistors for Fender heater filament wires | The Gear Page
Emission Labs. Application note about tube amplifier design.