Welcome To the Hoffman Amplifiers Forum

September 07, 2025, 02:36:07 pm
guest image
Welcome, Guest. Please login or register.
-User Name
-Password



Hoffman Amps Forum image Author Topic: Dual Tremelo = Auto Pan?  (Read 8000 times)

0 Members and 1 Guest are viewing this topic.

Offline shooter

  • Level 5
  • *******
  • Posts: 11015
  • Karma Loves haters
Hoffman Amps Forum image
Re: Dual Tremelo = Auto Pan?
« Reply #50 on: September 19, 2020, 04:37:35 pm »
I'm gonna butcher this, someone else cane decode it  :icon_biggrin:


You do start with tubes
then tube datasheet
find what "operating conditions" you want, or are constrained by (you have trannies and just gotta make them "fit"!)


here's a datasheet from my last build;
my "target" is inside the red box
note plate to plate effective resistance is 12k
I had a 5K:4ohm
if you double the "load" (speaker) to 8ohms, the pri side doubles too, so 10k
now I build it, dial B+ like the datasheet says
use a cathode R like the datasheet says
then tinker tweak close
once I get "there", the tubes "should be happy" with the OT conditions, give or take a few  :icon_biggrin: 
Went Class C for efficiency

Offline neddyboy

  • Level 2
  • **
  • Posts: 112
  • I love Tube amps
Hoffman Amps Forum image
Re: Dual Tremelo = Auto Pan?
« Reply #51 on: September 19, 2020, 08:03:10 pm »
Give me a day or two to unpack all that! Thanks for the explanation.

 


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