BLUE CHANNEL total project (Schematic + PCB + layout)!

[Steben]

Schematic:


small version of pcb:
300 dpi version to download::
http://i31.photobucket.com/albums/c356/StebenDerMeister/bluchapcb.jpg

components + layout:

[Steben]

Does anyone know good PCB developers in Western Europe - Benelux?
Or anyone of you guys?
It's just that I cannot afford to set up a chemical plant in my own house and besides that it's a bit time consuming.

[xshredx]

What do you mean?   You want to have this pcb etched for you??

I'm from Belgium too, and the electronics store around the corner etches my pcb's... I only have to drill them.

Or do you want a professionally made pcb?

[Gus]

Look close at the marshall blues breaker it even has a very clever gain control setup.

Also look at musicman preamp schematics.

people have been down this road before.  Another thing to try is a full wave diode bridge and using different diodes, resistors across the center + and -  for two diode drops plus whatever is in the middle once you get over 4 diodes this can reduce the number of diodes you need.  I think you will understand this post.

[Serge]

Hey, I'm from Belgium too...  How much pcb's would you like to have printed?  I know two companies in Leuven who make pcb's: Baiets and www.layers.be.  I haven't worked with either of them though.

[Steben]

Look close at the marshall blues breaker it even has a very clever gain control setup.

Also look at musicman preamp schematics.

people have been down this road before.  Another thing to try is a full wave diode bridge and using different diodes, resistors across the center + and -  for two diode drops plus whatever is in the middle once you get over 4 diodes this can reduce the number of diodes you need.  I think you will understand this post.

Bluesbreaker is much more normal TS clone, since it has only one treshold, keeping the stock logarithmic knee curve. There is in the blue channel also that cap that keeps the highs from higher treshold, giving higher order harmonics at louder bass.

gain setup boost at low gain presence frequencies (>2Khz) for snappy clean, at higher gain it goes flat, till at full gain you have bass cut at 1kHz (=~ treble booster), which you can switch off.

EDIT: yeah, musicman schematics look good, yet I don't understand nothing of that "current source" clipper! 
SS except for the last Power tubes... that's an idea! Anyone experience with those Musicmans?