Welcome To the Hoffman Amplifiers Forum

September 08, 2025, 02:12:28 pm
guest image
Welcome, Guest. Please login or register.
-User Name
-Password



Hoffman Amps Forum image Author Topic: Is it still necessary to twist DC heater/filament wires?  (Read 2532 times)

0 Members and 1 Guest are viewing this topic.

Offline markmalin

  • Level 3
  • ***
  • Posts: 827
  • Malin Sweet Loraine
    • Malin Amplification
Hoffman Amps Forum image
Is it still necessary to twist DC heater/filament wires?
« on: January 13, 2019, 05:45:40 pm »
Hey all,


I'm using DC heater to the heaters on a pre-amp.  I've rectified the 6.3V tap on my transformer and filtered it with a 4700 uf cap.  I'm re-routing the heater wires, but my question is, do I really need to TWIST DC heater wires, or is that only for AC heater supplies?


Thanks


Humbly
Mark
« Last Edit: January 13, 2019, 05:48:28 pm by markmalin »
"... there are Flying V's and then there are the ones shaped like peanuts..."  - my son at age 9

Offline sluckey

  • Level 5
  • *******
  • Posts: 5075
    • Sluckey Amps
Hoffman Amps Forum image
Re: Is it still necessary to twist DC heater/filament wires?
« Reply #1 on: January 13, 2019, 05:59:11 pm »
I don't think it's necessary but it wont hurt. And it looks good.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline markmalin

  • Level 3
  • ***
  • Posts: 827
  • Malin Sweet Loraine
    • Malin Amplification
Hoffman Amps Forum image
Re: Is it still necessary to twist DC heater/filament wires?
« Reply #2 on: January 13, 2019, 06:09:56 pm »
I don't think it's necessary but it wont hurt. And it looks good.


Thanks, sluckey.
I'm doing this in a tube pre-amp pedal, so not twisting will make my life orders of magnitude simpler :)
"... there are Flying V's and then there are the ones shaped like peanuts..."  - my son at age 9

 


Choose a link from the
Hoffman Amplifiers parts catalog
Mobile Device
Catalog Link
Yard Sale
Discontinued
Misc. Hardware
What's New Board Building
 Parts
Amp trim
Handles
Lamps
Diodes
Hoffman Turret
 Boards
Channel
Switching
Resistors Fender Eyelet
 Boards
Screws/Nuts
Washers
Jacks/Plugs
Connectors
Misc Eyelet
Boards
Tools
Capacitors Custom Boards
Tubes
Valves
Pots
Knobs
Fuses/Cords Chassis
Tube
Sockets
Switches Wire
Cable


Handy Links
Tube Amp Library
Tube Amp
Schematics library
Design a custom Eyelet or
Turret Board
DIY Layout Creator
File analyzer program
DIY Layout Creator
File library
Transformer Wiring
Diagrams
Hoffmanamps
Facebook page
Hoffman Amplifiers
Discount Program


password