Welcome To the Hoffman Amplifiers Forum

September 07, 2025, 03:48:52 pm
guest image
Welcome, Guest. Please login or register.
-User Name
-Password



Hoffman Amps Forum image Author Topic: NFB tap question  (Read 1802 times)

0 Members and 1 Guest are viewing this topic.

Offline joesatch

  • Level 3
  • ***
  • Posts: 698
  • save me from myself.
Hoffman Amps Forum image
NFB tap question
« on: June 23, 2022, 08:31:02 am »
I re-built a DSL100 but used only 2 power tubes so i halved the OT taps used (4 ohm OT tap going to 8 ohm speaker jack and 8 ohm OT tap going to 16 ohm speaker jack).  The layout i was working with for a 50 watt build calls for the NFB connected to the 16 ohm OT tap but i connected it to the 8 ohm OT tap. Should i move it to the 16 ohm tap? i ask because my depth pot doesnt do much
« Last Edit: June 23, 2022, 09:03:13 am by joesatch »

Offline sluckey

  • Level 5
  • *******
  • Posts: 5075
    • Sluckey Amps
Hoffman Amps Forum image
Re: NFB tap question
« Reply #1 on: June 23, 2022, 09:05:16 am »
I re-built a DSL100 but used only 2 power tubes so i halved the OT taps used (4 ohm OT tap going to 8 ohm speaker jack and 8 ohm OT tap going to 16 ohm speaker jack).  The layout i was working with for a 50 watt build calls for the NFB connected to the 16 ohm OT tap but i connected it to the 8 ohm OT tap. Should i move it to the 16 ohm tap? i ask because my depth pot doesnt do much
yes
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

 


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