Menu

Show posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.

Show posts Menu

Topics - Wuchi

#1
Amplifier Discussion / Noticeable hiss in Tech 21 tm60
November 06, 2011, 02:40:50 PM
Hi!

I bought used tm6o and it has noticeable hiss even when all volumes are down. Does this mean that power supply electrolytics should be replaced?

Thanks!

Edit. The amp is older version. It has 2112-A speaker.
#2
Tubes and Hybrids / tube voltage amp in ss amp
June 09, 2009, 06:18:12 PM
Hello!

This is my first post in this forum.

I've built few tube amps from kits and I have some understanding about how they work. Now I'm trying to learn something about ss amps and I'm building one with my son.

The idea of the amp we're building is like this:

two different preamps driving a stereo amp(lm3886). One is driving the left channel and other the right channel. The idea was that you could use one or two amps the same time using an a/b/y box. I have a 2 x 12" combo that I'll use with two different speakers, alnico and ceramic. And the two preamps would drive naturally separate speakers.

Ok.

Here is the question: If I use for example stompboxes from runoffgroove as preamps, do I need a voltage amp before the poweramp? If I do, what if I use a tube circuit here? Will it contribute tube(ish) sound to overall result?

Hopefully you will  understand my writing :)

Thanks,

Jari