Welcome To the Hoffman Amplifiers Forum

September 06, 2025, 01:06:07 pm
guest image
Welcome, Guest. Please login or register.
-User Name
-Password



Hoffman Amps Forum image Author Topic: Question regarding dual channel Carolina Blues Special  (Read 2373 times)

0 Members and 1 Guest are viewing this topic.

Offline embotone

  • Level 2
  • **
  • Posts: 184
Hoffman Amps Forum image
Question regarding dual channel Carolina Blues Special
« on: December 10, 2011, 08:54:40 pm »
If I were to build a CBS with two channels, and a universal reverb that affected both channels, could I send each channel through  220K mixing resistors and then place another 220k resistor next in the circuit for the reverb in and out points as in this schematic  http://www.el34world.com/Forum/index.php?action=dlattach;topic=8142.0;attach=11731   or would having the signal pass through the extra 220k attenuate the signal too much?  I would like to keep this amp as clean as possible.

Offline tubenit

  • Global Moderator
  • Level 5
  • ******
  • Posts: 10274
  • Life is a daring adventure or nothing at all!
Hoffman Amps Forum image
Re: Question regarding dual channel Carolina Blues Special
« Reply #1 on: December 11, 2011, 06:24:42 am »
I think what you are proposing would work OK? But I've never done it, so you'd just have to try it and see. You could always remove the 27k resistors between the phase invertor and power tubes if you needed to boost the volume up.

I think the LarMar PPIMV is a better master volume then the one I originally used with the CBS. I really didn't engage the original master volume 98% of the time.

With respect, Tubenit


 


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