PDA

View Full Version : Champion 600 rebuild


tunghaichuan
October 4th, 2008, 10:19 AM
This pic was posted on the Sewatt BBS this morning:

http://i13.photobucket.com/albums/a287/Jelle5/champ_web1-1.jpg

Looks pretty cool. I plan on doing something similar with mine.

tung
sumitomo
October 4th, 2008, 01:44 PM
Thats cool Tung.I need to posts some pics of the inside of my little Supro for ya.I love that little amp and its all orginal sept the tubes.Sumi:D
tunghaichuan
October 4th, 2008, 01:52 PM
Thats cool Tung.I need to posts some pics of the inside of my little Supro for ya.I love that little amp and its all orginal sept the tubes.Sumi:D

That would be cool. I'd like to see some gut shots of that amp. Do you know what model number it is? I might have a schematic for it or failing that I might be able to find one.

tung
sumitomo
October 4th, 2008, 02:30 PM
The model # on the one I have is 1606.Sumi:D
tunghaichuan
October 4th, 2008, 02:54 PM
The model # on the one I have is 1606.Sumi:D

Looks like it is the same as the Gretch/Valco 6150:

http://www.schematicheaven.com/bargainbin/gretsch6150.pdf

Does yours have a 5Y3, 6V6, and a 12AX7?

Tung
sumitomo
October 4th, 2008, 03:04 PM
That,s the puppy,great little amph.Only thing I would like is if it was as little brighter.A pedal works but it's cool just to plug it in and go.Sumi:D
tunghaichuan
October 4th, 2008, 03:19 PM
That,s the puppy,great little amph.Only thing I would like is if it was as little brighter.A pedal works but it's cool just to plug it in and go.Sumi:D

Is it wired on terminal strips (point to point) or an eyelet/turret board?

On thing about that amp. The input stage is wired for grid-leak bias. Instead of cathode bias like a Champ. There is a large resistor from the grid to the ground (6.8meg)and the cathode is connected directly to ground.

Looks like a cool little amp.

tung
sumitomo
October 4th, 2008, 03:39 PM
It's point to point.Sumi:D
tot_Ou_tard
October 4th, 2008, 03:54 PM
Cool beans tung.

I'll have to take a look at that sewatt post.

Are there any clips?
tunghaichuan
October 4th, 2008, 04:02 PM
Cool beans tung.

I'll have to take a look at that sewatt post.

Are there any clips?

Here's a direct link:

http://www.sewatt.com/node/18135

If you're not a member, you'll have to sign up to see the post.

I don't believe there were any clips posted.

tung
tot_Ou_tard
October 5th, 2008, 05:29 AM
Here's a direct link:

http://www.sewatt.com/node/18135

If you're not a member, you'll have to sign up to see the post.

I don't believe there were any clips posted.

tung
Thanks tung!

I might as well sign up & gawk at the pictures.
tunghaichuan
October 5th, 2008, 09:50 AM
Thanks tung!

I might as well sign up & gawk at the pictures.

Might as well. There is a section on the BBS devoted to modding the Champion 600. It isn't as active as the Valve Junior section, but there is some information.

tung
tot_Ou_tard
October 6th, 2008, 04:59 AM
Might as well. There is a section on the BBS devoted to modding the Champion 600. It isn't as active as the Valve Junior section, but there is some information.

tung

I went to register & discovered that a certain tot_Ou_tard had already registered.

I can't be expected to remember everything that I've done in my life!

This includes choosing a password. It took me a while to figure that one out.