Welcome To the Hoffman Amplifiers Forum

September 07, 2025, 03:43:15 pm
guest image
Welcome, Guest. Please login or register.
-User Name
-Password



Hoffman Amps Forum image Author Topic: THUMPING VIBRATO  (Read 3102 times)

0 Members and 1 Guest are viewing this topic.

Offline TIMBO

  • Level 4
  • *****
  • Posts: 2878
  • Blues Forever
Hoffman Amps Forum image
THUMPING VIBRATO
« on: June 17, 2014, 03:47:05 am »
Hi guys, Been trying to fix a few bugs......

The vibrato works, but thumps when turning up the intensity, I added a .47u just before the intensity pot and this helped as I could only turn the intensity pot to about 3 before it started to thump.
When adding the .47u I was able to get the pot to 7 before it started, but turning up the master it only made the thump louder.
I read some bits on this type of vibrato and it seems to have this problem.

Some help. Thanks

g-man

  • Guest
Hoffman Amps Forum image
Re: THUMPING VIBRATO
« Reply #1 on: June 17, 2014, 09:01:32 am »
Deleted
« Last Edit: August 06, 2024, 04:18:07 pm by g-man »

Offline Leevi

  • Level 3
  • ***
  • Posts: 1574
  • I love tube amps
    • Rikstone
Hoffman Amps Forum image
Re: THUMPING VIBRATO
« Reply #2 on: June 23, 2014, 09:15:05 am »
It helped in my case when I moved the tremolo to the cathode
of the first amplification stage. IMO it sounded even better there.
/Leevi

 


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