Welcome To the Hoffman Amplifiers Forum

September 07, 2025, 06:31:11 pm
guest image
Welcome, Guest. Please login or register.
-User Name
-Password



Hoffman Amps Forum image Author Topic: Aireon 1221a amp  (Read 2768 times)

0 Members and 1 Guest are viewing this topic.

Offline Panama Red

  • Level 1
  • *
  • Posts: 10
  • I love Tube amps
Hoffman Amps Forum image
Aireon 1221a amp
« on: May 07, 2021, 11:09:52 am »
Hello everyone I just picked up this old jukebox amp and I can not find out any information on it other that it's for late 40's to mid 50's seems complete lots of surface rust and one of the 6L6 tubes has lost vacuum, I'd like to get it up and running maybe convert it to a stereo amp for home use anyone out there have info or advice?

Offline shooter

  • Level 5
  • *******
  • Posts: 11015
  • Karma Loves haters
Hoffman Amps Forum image
Re: Aireon 1221a amp
« Reply #1 on: May 07, 2021, 11:59:39 am »
document it, 6 ways to Sunday
sketch up a schematic
make it work "as is"
then
tweak to your taste
Went Class C for efficiency

Offline sluckey

  • Level 5
  • *******
  • Posts: 5075
    • Sluckey Amps
Hoffman Amps Forum image
Re: Aireon 1221a amp
« Reply #2 on: May 07, 2021, 12:57:02 pm »
First step is to find or draw a schematic.

Oh yeah, you'll need two of these amps for stereo.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline PRR

  • Level 5
  • *******
  • Posts: 17082
  • Maine USA
Hoffman Amps Forum image
Re: Aireon 1221a amp
« Reply #3 on: May 07, 2021, 06:01:32 pm »

Offline Panama Red

  • Level 1
  • *
  • Posts: 10
  • I love Tube amps
Hoffman Amps Forum image
Re: Aireon 1221a amp
« Reply #4 on: May 08, 2021, 03:14:10 pm »
https://people.ohio.edu/postr/bapix/Aireon.htm
ya I saw this but there were no schematics and I've looked everywhere for them some of the caps are in really bad shape so I can't get numbers off them and I'm nowhere near close to being experienced enough to even know what I'm looking at!

Offline PRR

  • Level 5
  • *******
  • Posts: 17082
  • Maine USA
Hoffman Amps Forum image
Re: Aireon 1221a amp
« Reply #5 on: May 08, 2021, 07:02:12 pm »
It's not unique technology. Look at other two-6L6 amps and steal the values.

Or stop buying and selling these things until you get more familiar with them.

Offline Panama Red

  • Level 1
  • *
  • Posts: 10
  • I love Tube amps
Hoffman Amps Forum image
Re: Aireon 1221a amp
« Reply #6 on: May 10, 2021, 02:06:49 am »
I'm not buying any of them most I'm saving from an old abandoned property I have permission to salvage from, I'm trying to just find out what's worth saving! And I dont need to know anything to ask questions that's how you learn! So pipe down!

Offline Willabe

  • Global Moderator
  • Level 5
  • ******
  • Posts: 10524
Hoffman Amps Forum image
Re: Aireon 1221a amp
« Reply #7 on: May 11, 2021, 12:20:46 am »
We try to be respectful to each other here.

And PRR is 1 of the most knowledgeable, well respect and liked member we have here, without question.   

That last 'pipe down' was not necessary.  :think1:

 
« Last Edit: May 11, 2021, 12:26:17 am by Willabe »

Offline EL34

  • Administrator
  • Level 5
  • **********
  • Posts: 10407
  • wooot!
    • Hoffman Amplifiers
Hoffman Amps Forum image
Re: Aireon 1221a amp
« Reply #8 on: May 11, 2021, 06:14:36 am »
I'm trying to just find out what's worth saving! And I dont need to know anything to ask questions that's how you learn! So pipe down!


We do not act like that here.
Drop the attitude

I have done a bunch of old juke box amps way back in the day
You will not be able to do this at your current skill level

There are way too many things you need to know first
This is not a task for a beginner.



 


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