Welcome To the Hoffman Amplifiers Forum

September 06, 2025, 05:09:03 pm
guest image
Welcome, Guest. Please login or register.
-User Name
-Password



Hoffman Amps Forum image Author Topic: screen/grid resistor  (Read 2631 times)

0 Members and 1 Guest are viewing this topic.

Offline jeff

  • Level 3
  • ***
  • Posts: 1238
  • Need input
Hoffman Amps Forum image
screen/grid resistor
« on: January 13, 2011, 09:55:05 pm »
 On a typical Fender output tube socket there is a 1K5 grid and 470ohm screen resistor mounted right on the socket. To wire a amp to take EL34's you need to remove one because you need to ground pin 1. I remember reading once that one of these resistors, I can't remember if it way the grid or the screen, works better if it is mounted directly on the socket. Is it the screen or the grid resistor that should be mounted directally on the socket?

Offline sluckey

  • Level 5
  • *******
  • Posts: 5075
    • Sluckey Amps
Hoffman Amps Forum image
Re: screen/grid resistor
« Reply #1 on: January 13, 2011, 10:10:52 pm »
control grid resistor on socket.
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