clipping diodes

[j.y]

hi guys...

i started reading a lot about diode to ground clipping configurations recently. and got confused with the connections.

i searched and read lots of thread explaining it works and i understand those perfectly.

there seems to be 2 ways to connect diode to ground..

http://www.diystompboxes.com/wiki/index.php?title=Simplemods#Simple.2C_Easy_Mods.2FTips_.26_Techniques ---------------> this is the most common way to connect from all the schematics i saw.. and to increase the dynamic range.. we just put diodes in series..

i saw the speaker saturation simulator schematic http://aronnelson.com/gallery/STMs-Circuit-Ideas/Speaker_Saturation_Simulator

and i saw a wire after the silicon diodes.. which means the limiter consist of 1 paralleled silicon diodes in series with 1 paralleled germanium diodes..
is there a difference connecting this way as oppose to the normal way of connecting them.. which means.. taking out the wire after the silicon diode..resulting in series silicon and germanium diode to ground??

hope you guys understand wad im tryin to ask..

thank you so much..

[aron]

They are the same. Just that one of them has a series resistor which is mentioned in the simple mods:


In one case the diodes go straight to ground. In the 2nd case, there is a resistor in series to "soften" the clipping.

OOOPS I didn't read carefully. I see what you mean. I haven't experimented with that.

OK, I'm a liar. I did experiment with it but I can't remember what it does:

[aron]

BTW: the Shaka Braddah is a very unique sounding pedal. I think I'm going to build another.

[j.y]

thks for the reply aron..

i did some test using circuit maker and it didnt show any differences in the output waveform.. so any one knows whats the reason for that wire?? really odd to me..

[aron]

There must be a difference. I have seen that a lot in tape simulation circuits.