Welcome To the Hoffman Amplifiers Forum

September 06, 2025, 04:42:00 pm
guest image
Welcome, Guest. Please login or register.
-User Name
-Password



Hoffman Amps Forum image Author Topic: Princeton to 6L6 from 6V6..from AO-39  (Read 1762 times)

0 Members and 1 Guest are viewing this topic.

Offline Skip Hagey

  • Level 1
  • *
  • Posts: 52
  • I love Tube amps
Hoffman Amps Forum image
Princeton to 6L6 from 6V6..from AO-39
« on: July 20, 2015, 02:34:42 pm »
Just got another AO-39 and interested in building a Princeton 5F2A but using a 6L6 instead of the 6V6. I'm sure it's do-able but does anyone have experience or even a schematic of such a thing?  It would also be nice to use any of the octal power tubes, 6V6, 6L6, EL34 etc.

Offline sluckey

  • Level 5
  • *******
  • Posts: 5075
    • Sluckey Amps
Hoffman Amps Forum image
Re: Princeton to 6L6 from 6V6..from AO-39
« Reply #1 on: July 20, 2015, 03:11:53 pm »
5F2A is a single ended amp. AO-39 is a push/pull amp. Really not a good candidate. You would definitely need a different OT.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline Skip Hagey

  • Level 1
  • *
  • Posts: 52
  • I love Tube amps
Hoffman Amps Forum image
Re: Princeton to 6L6 from 6V6..from AO-39
« Reply #2 on: July 21, 2015, 01:02:20 pm »
OK, so I've done your Marshall 18, what would you suggest? Eventually I'd love to do a stand-alone reverb but I don't think this chassis would be good for that...  I'm still a novice so something not to intricate?

Offline sluckey

  • Level 5
  • *******
  • Posts: 5075
    • Sluckey Amps
Hoffman Amps Forum image
Re: Princeton to 6L6 from 6V6..from AO-39
« Reply #3 on: July 21, 2015, 02:10:50 pm »
I like the AC-15 lite better than the 18W lite.
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