Welcome To the Hoffman Amplifiers Forum

September 08, 2025, 03:25:30 am
guest image
Welcome, Guest. Please login or register.
-User Name
-Password



Hoffman Amps Forum image Author Topic: Amp noise  (Read 2271 times)

0 Members and 1 Guest are viewing this topic.

Offline newguitarsmell

  • Level 2
  • **
  • Posts: 166
  • I love Tube amps
Hoffman Amps Forum image
Amp noise
« on: May 27, 2020, 12:59:35 pm »
Hi everyone
Curious - if I run my choke wires over my turret board instead of under, will that cause noise?
Thanks.

Offline SILVERGUN

  • Level 4
  • *****
  • Posts: 3507
Hoffman Amps Forum image
Re: Amp noise
« Reply #1 on: May 27, 2020, 01:06:15 pm »
Hi everyone
Curious - if I run my choke wires over my turret board instead of under, will that cause noise?
Thanks.


No


Ok, here's the thing. Randomly running choke wires over an unpopulated section of board won't in itself cause noise, that's where my answer came from.
Without any other info (that you haven't given), that's all there is.

« Last Edit: May 27, 2020, 01:11:22 pm by SILVERGUN »

Offline shooter

  • Level 5
  • *******
  • Posts: 11015
  • Karma Loves haters
Hoffman Amps Forum image
Re: Amp noise
« Reply #2 on: May 27, 2020, 01:32:13 pm »
Use a big marker and write on your wall, NEVER mix High current wires with low current wires.
Or something like;
I need to read about inductive coupling between wires
 :icon_biggrin:
Went Class C for efficiency

Offline newguitarsmell

  • Level 2
  • **
  • Posts: 166
  • I love Tube amps
Hoffman Amps Forum image
Re: Amp noise
« Reply #3 on: May 27, 2020, 02:02:18 pm »
Hey Shooter.
OK. Dumb ass question. Which are the high voltage ones and which are the low voltage ones?
And the choke question was just an "in general"... if there is such a thing as that, in this world.

Offline shooter

  • Level 5
  • *******
  • Posts: 11015
  • Karma Loves haters
Hoffman Amps Forum image
Re: Amp noise
« Reply #4 on: May 27, 2020, 02:59:55 pm »
https://en.wikipedia.org/wiki/Inductive_coupling

really is worth the read.
general questions beget general answers which generally don't help much

And is more about current than voltage
Went Class C for efficiency

Offline mresistor

  • Global Moderator
  • Level 4
  • ******
  • Posts: 3209
  • resistance is futile
Hoffman Amps Forum image
Re: Amp noise
« Reply #5 on: May 27, 2020, 03:28:04 pm »
Hey Shooter.
OK. Dumb ass question. Which are the high voltage ones and which are the low voltage ones?
And the choke question was just an "in general"... if there is such a thing as that, in this world.


I don't think he said high "voltage" wires..      pay attention

Offline pdf64

  • Level 4
  • *****
  • Posts: 2965
Hoffman Amps Forum image
Re: Amp noise
« Reply #6 on: May 27, 2020, 03:44:44 pm »
Use a big marker and write on your wall, NEVER mix High current wires with low current wires.
Or something like;
I need to read about inductive coupling between wires
 :icon_biggrin:
I think of this as ‘avoid bringing the powerful transmitters too close to any sensitive receivers’.
Maintaining a reasonable degree of separation between them will avoid problems (and kludgy solutions) down the road
https://www.justgiving.com/page/5-in-5-for-charlie This is my step son and his family. He is running 5 marathons in 5 days to support the research into STXBP1, the genetic condition my grandson Charlie has. Please consider supporting him! BBC News feature  https://www.bbc.co.uk/news/articles/cm26llp

Offline shooter

  • Level 5
  • *******
  • Posts: 11015
  • Karma Loves haters
Hoffman Amps Forum image
Re: Amp noise
« Reply #7 on: May 27, 2020, 04:10:37 pm »
As PDF64 eluded to;
If it's in the preamp keep it away from the power supply and PA section.

I didn't look up the math and I'm hot and sore, but I think it's a distance squared thing
Went Class C for efficiency

 


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