Hi-Bass button

[alejo]

Hello, I want to make an experiment.

I want to do "the button of bass" that they bring walkman them, they discman but to valve.

the resaltador circuit of bass, as I face the circuit? yes in valves for add to my preamp.

thanks
Alejo

 

[GeirW]

Gday.

I think i know what you mean,
if you cab read the shematic (ziped) here:

http://www.diyaudio.com/forums/showthread.php?postid=509596#post509596

there is a "bass boost" function.
(i would perhaps used the word loudness, but there is
also got a manual output gain control.)

 

[alejo]

Yes, I need a valve circuit for BassBost butom. (I tink use ECC´lines valves if its posible)

In the zip circuit, the bost is in negative feedback?

thanks
Alejo

 

[Wodgy]

For a thorough, easy to understand discussion of nearly all the ways to boost bass with tubes, go here:
http://geek.scorpiorising.ca/RDH4.html
and download Chapter 15.