Welcome To the Hoffman Amplifiers Forum

September 07, 2025, 06:33:23 pm
guest image
Welcome, Guest. Please login or register.
-User Name
-Password



Hoffman Amps Forum image Author Topic: Schematic request: Magnatone M15 (Solved)  (Read 8178 times)

0 Members and 1 Guest are viewing this topic.

Offline Cinematographer

  • Level 1
  • *
  • Posts: 3
  • I love Tube amps
Hoffman Amps Forum image
Schematic request: Magnatone M15 (Solved)
« on: July 19, 2023, 11:10:49 pm »
Hello hive mind,
I am looking for a schematic for a Magnatone M15 with Three speakers. The schematics that I hae on the web don't cover the early 3 speaker model and the later models use different topology especially in the reverb. I know this is a long shot.. Thanks for any help in advance.
Kenn
« Last Edit: July 22, 2023, 10:46:48 am by Cinematographer »

Offline sluckey

  • Level 5
  • *******
  • Posts: 5075
    • Sluckey Amps
Hoffman Amps Forum image
Re: Schematic request: Magnatone M15
« Reply #1 on: July 20, 2023, 07:38:48 am »
Can you post some pics of that amp? Need to see the front showing the speaker baffle and also the top control panel. Since the M15s are stereo amps I'm curious about only three speakers. What size are the three speakers?
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline Cinematographer

  • Level 1
  • *
  • Posts: 3
  • I love Tube amps
Hoffman Amps Forum image
Re: Schematic request: Magnatone M15
« Reply #2 on: July 22, 2023, 02:06:13 am »
[/img]
Can you post some pics of that amp? Need to see the front showing the speaker baffle and also the top control panel. Since the M15s are stereo amps I'm curious about only three speakers. What size are the three speakers?
It is technically 5 speakers: 3 8 inch speakers and 2 tweeters my faceplate is unreadable but the amp looks like this photo I found on the web.
« Last Edit: July 22, 2023, 02:16:20 am by Cinematographer »

Offline sluckey

  • Level 5
  • *******
  • Posts: 5075
    • Sluckey Amps
Hoffman Amps Forum image
Re: Schematic request: Magnatone M15
« Reply #3 on: July 22, 2023, 08:35:12 am »
Here you go...
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline Cinematographer

  • Level 1
  • *
  • Posts: 3
  • I love Tube amps
Hoffman Amps Forum image
Re: Schematic request: Magnatone M15
« Reply #4 on: July 22, 2023, 10:36:02 am »
Wow! Thank you! :worthy1: This is perfect.  Now I can get to work fixing this baby. It had a metric ton of rotten foam and various bug bits along with broken tabs on the PT bell end. There have been some ahem... mods so this schematic will be invaluable. Thanks again! I was able to bring this into photoshop and enlarge it and improve the readability. I'll post it here for anyone who finds it useful.
« Last Edit: July 22, 2023, 10:51:31 am by Cinematographer »

 


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