Welcome To the Hoffman Amplifiers Forum

September 07, 2025, 11:57:53 am
guest image
Welcome, Guest. Please login or register.
-User Name
-Password



Hoffman Amps Forum image Author Topic: Dumb question about Top Hat amps  (Read 4182 times)

0 Members and 1 Guest are viewing this topic.

Offline warioblast

  • Level 2
  • **
  • Posts: 211
Hoffman Amps Forum image
Dumb question about Top Hat amps
« on: August 25, 2017, 09:23:13 pm »



What's that grey cloth for ?

Offline MFowler

  • Level 2
  • **
  • Posts: 239
Hoffman Amps Forum image
Re: Dumb question about Top Hat amps
« Reply #1 on: August 26, 2017, 08:01:12 am »
Spaghetti tubing to insulate bare wire/component runs.

Offline John

  • Level 3
  • ***
  • Posts: 1895
Hoffman Amps Forum image
Re: Dumb question about Top Hat amps
« Reply #2 on: August 26, 2017, 10:21:21 am »
He's asking about the grey cloth.
Tapping into the inner tube.

Offline Glenn

  • Level 1
  • *
  • Posts: 68
  • I love Tube amps
Hoffman Amps Forum image
Re: Dumb question about Top Hat amps
« Reply #3 on: August 26, 2017, 11:07:16 am »
Maybe the cloth is there because the components are laying on near the chassis and this would reduce any vibrations
Issue with parts?
Or maybe someone did it so we would say "what's up with That"?  :icon_biggrin:

Offline MFowler

  • Level 2
  • **
  • Posts: 239
Hoffman Amps Forum image
Re: Dumb question about Top Hat amps
« Reply #4 on: August 27, 2017, 08:41:54 am »
I noticed that gray matt or felt like material in a TopHat amp I was poking around in and found no reason for it and it most likely will absorb moisture.

Offline CraigB

  • Level 3
  • ***
  • Posts: 681
Hoffman Amps Forum image
Re: Dumb question about Top Hat amps
« Reply #5 on: August 27, 2017, 07:24:34 pm »
Doesn't look like any contact points would be affected even if it sucked some moisture.  I would've picked some other material though that couldn't hold moisture in it, maybe some soft rubber or something.

Offline purpletele

  • Level 3
  • ***
  • Posts: 859
    • Vallis Enterprises, Inc.
Hoffman Amps Forum image
Re: Dumb question about Top Hat amps
« Reply #6 on: August 28, 2017, 10:19:34 am »
An official response on the felt from the creator.


vibration damper for the wires and to deaden the chassis some from hi freq feedback back into the wires
Brian Gerhard
919-817-5614 10-6pm EST M-Sat


Offline warioblast

  • Level 2
  • **
  • Posts: 211
Hoffman Amps Forum image
Re: Dumb question about Top Hat amps
« Reply #7 on: August 28, 2017, 01:51:07 pm »
Cool, thx  :wink:

Offline shooter

  • Level 5
  • *******
  • Posts: 11015
  • Karma Loves haters
Hoffman Amps Forum image
Re: Dumb question about Top Hat amps
« Reply #8 on: August 28, 2017, 06:36:26 pm »
put a little gun oil on the felt and it'll never rust :icon_biggrin:
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