clipping diodes

[nognow]

does it matter where in the circuit I put the clipping diodes?
which diodes can be used as clipping diodes?

I know these are noob questions but I just can't help it

[armdnrdy]

http://www.diystompboxes.com/smfforum/index.php?action=search2

[anchovie]

1. Yes
2. Any

Merry Christmas!

[nognow]

1. Yes
2. Any

Merry Christmas!

that was simple 
Where in the circuit would you usually place the diodes?

[anchovie]

Which circuit?

The general idea with a distortion circuit is to put them where the signal is big enough to be clipped by them. Study some schematics for existing circuits with diode clipping and see if you can work out what's happening beforehand.

[amptramp]

You have three general choices.

1. DOD250 style, they go from the signal path to ground.
2. Tube Screamer style, they go in the feedback path of a non-inverting amplifier.
3. Big Muff style, they can go in the feedback path of an inverting amplifier.

You can always add resistance, capacitance or inductance to the diodes to emphasize a particular frequency and in the Big Muff, the diodes have to be capacitively coupled to block DC, so the effect can be designed to not affect bass notes as much.  With the Tube Screamer, there is always unity gain for the incoming signal which prevents the clipping from completely destroying the original waveform.  Unfortunately, we lost a thread in the recent crash about unwanted clipping but one of the comments made on it rings true: if you control the frequency response of the signals being clipped and the output after clipping, you can tailor the response to get the effect you want.

Also, 2000th post!  I have no life.

[kingswayguitar]

Also, 2000th post!  I have no life.

get outta town!!
you guys (and gals) all rock!!

Merry Christmas

[nognow]

Which circuit?

The general idea with a distortion circuit is to put them where the signal is big enough to be clipped by them. Study some schematics for existing circuits with diode clipping and see if you can work out what's happening beforehand.

You have three general choices.

1. DOD250 style, they go from the signal path to ground.
2. Tube Screamer style, they go in the feedback path of a non-inverting amplifier.
3. Big Muff style, they can go in the feedback path of an inverting amplifier.

You can always add resistance, capacitance or inductance to the diodes to emphasize a particular frequency and in the Big Muff, the diodes have to be capacitively coupled to block DC, so the effect can be designed to not affect bass notes as much.  With the Tube Screamer, there is always unity gain for the incoming signal which prevents the clipping from completely destroying the original waveform.  Unfortunately, we lost a thread in the recent crash about unwanted clipping but one of the comments made on it rings true: if you control the frequency response of the signals being clipped and the output after clipping, you can tailor the response to get the effect you want.

Also, 2000th post!  I have no life.

honestly ,I wanted to experiment with clipping diodes in three pedals that have no clipping diodes haha
here they are:
http://tagboardeffects.blogspot.co.il/2012/08/mi-audio-gi-fuzz.html
http://tagboardeffects.blogspot.co.il/2012/09/okko-diablo-modded-monster-pot-edition.html
http://tagboardeffects.blogspot.co.il/2014/07/okko-dominator.html