Welcome To the Hoffman Amplifiers Forum

September 06, 2025, 09:37:47 am
guest image
Welcome, Guest. Please login or register.
-User Name
-Password



Hoffman Amps Forum image Author Topic: Can someone link me a part for bias test points or something similar?  (Read 2914 times)

0 Members and 1 Guest are viewing this topic.

Offline paintballnsk

  • Level 1
  • *
  • Posts: 74
  • I love Tube amps
Hi,

I have a little project I'm working on and I need something similar to the testpoints found on some amps that have bias test leads in the back.

Anyone know what that part is called and maybe have a link to some?

Thanks!

Offline DummyLoad

  • SMG
  • Level 5
  • *****
  • Posts: 5790
Hoffman Amps Forum image
Re: Can someone link me a part for bias test points or something similar?
« Reply #1 on: February 08, 2021, 01:45:16 am »
2mm probe tip jack.


https://hoffmanamps.com/MyStore/perlshop.cgi?ACTION=enter&template&thispage=JacksPlugs&ORDER_ID=!ORDERID

$1.56 each from hoffman.

invest in a 1/4" lock washer or 1/4" star washer for the nut side.   


--pete





Offline Latole

  • Level 4
  • *****
  • Posts: 2522
Hoffman Amps Forum image
Re: Can someone link me a part for bias test points or something similar?
« Reply #2 on: February 08, 2021, 03:25:18 am »
2mm probe tip jack.


https://hoffmanamps.com/MyStore/perlshop.cgi?ACTION=enter&template&thispage=JacksPlugs&ORDER_ID=!ORDERID

$1.56 each from hoffman.

invest in a 1/4" lock washer or 1/4" star washer for the nut side.   


--pete

Yes, that is what I use too.
You need 1 ohm resistor.



Offline EL34

  • Administrator
  • Level 5
  • **********
  • Posts: 10407
  • wooot!
    • Hoffman Amplifiers
Hoffman Amps Forum image
Re: Can someone link me a part for bias test points or something similar?
« Reply #3 on: February 08, 2021, 07:21:11 am »
2mm probe tip jack.


https://hoffmanamps.com/MyStore/perlshop.cgi?ACTION=enter&template&thispage=JacksPlugs&ORDER_ID=!ORDERID

$1.56 each from hoffman.

invest in a 1/4" lock washer or 1/4" star washer for the nut side.   
--pete

Fixing the link so it does not point to your shopping cart

jacks- Plugs page
https://hoffmanamps.com/MyStore/catalog/JacksPlugs.htm




 


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