New build ultimate dumble-based amp (2)

Dumble schematics, designs, pictures. Only members may post files here.

Moderators: pompeiisneaks, Colossal

azatplayer
Posts: 556
Joined: Thu Feb 26, 2009 7:59 pm
Location: Great Southland

Re: New build ultimate dumble-based amp (2)

Post by azatplayer »

Whoaa, too cool!
noworrybeefcurry
Posts: 52
Joined: Fri May 20, 2011 9:50 pm

Re: New build ultimate dumble-based amp (2)

Post by noworrybeefcurry »

That truly is impressive!!! Any chance of a schematic?
User avatar
M Fowler
Posts: 14017
Joined: Wed Jan 16, 2008 2:19 am
Location: Walcott ND

Re: New build ultimate dumble-based amp (2)

Post by M Fowler »

User avatar
fjonkman
Posts: 6
Joined: Fri Sep 09, 2011 2:57 pm
Location: Netherlands, Rosmalen

Re: New build ultimate dumble-based amp (2)

Post by fjonkman »

martin manning wrote:Thanks for the additional details, fjonkman. The D tone stack is quite effective and is correct as drawn in the schematics and layouts posted here. That can be verified, at least in the case of the Skyliner version as implemented on #124, using the detailed photos. The R-J switch definitely has an effect, but the PAB will be reduced as the other EQ controls approach full-on. Re using the heater winding for relay power, I guess it can be done then- unregulated, even... There were reports that doing so caused hum issues, but I can't imagine why. Really great work, and thanks for posting the detailed documentation!
Martin
You are right on the D tone stack. I changed my scheme as it has to be. Here the result.
I don't have any sound files yet, because I don't have a decent setup. Maybe later.
You do not have the required permissions to view the files attached to this post.
diagrammatiks
Posts: 558
Joined: Sun Mar 27, 2011 12:28 am

Re: New build ultimate dumble-based amp (2)

Post by diagrammatiks »

this is excellent.
User avatar
tubelectron
Posts: 128
Joined: Sun Dec 04, 2011 10:33 am
Location: France

Re: New build ultimate dumble-based amp (2)

Post by tubelectron »

Three years later :wink:

Yes fjonkman, it is a fine job for a full featured amp, inspiring me...

A+!
If it works, don't fix it...
www.guilhemamplification.jimdo.com
Post Reply