I have one weird Idea !

[aron]

Changing diodes alone won't get you radically new tones. They affect the distortion clipping only. Changing diodes is something subtle. Don't expect to go from a light bluesy tone to heavy-metal crunch with one diode switch.

This is the truth. It could be argued that a single turn of a tone control could have a more radical effect than diode changes. OTOH, diode changes do change the "feel" of the effect.

Hi-gain transistors  - look for high hFE readings. The 2N5088/2N5089 are pretty high hFE.

[aron]

Check out:

http://www.diystompboxes.com/analogalchemy/

Obsidian and Vulcan. You will love them.

[Izzy]

Thanks Aron!

But this circuit is weird!
http://www.diystompboxes.com/analogalchemy/sch/vulcan.html

How will the current go from cathode to anode of those 1n914 diodes?  ?

Looks like the transistors are used as gain in those circuits. I was specifically looking for Transistors as diode.

But your advices are valuable as always. I might add trannies in DS-1 as gain stage (is it possible)?

I think DS-1 already uses 2 trannies, one as Input buffer and another as Gain stage right?, so adding another gain stage after the one in ds-1 would help?

Kinda confused here

[KerryF]

If you look at the "Clipboard" or "FlexiClip" by Dano12, you can see this idea of using singular and multiple diodes and transistors as diodes from input to output with cathode to anode, and anode to cathode idea.  This clips one side of the sound going through it, and gives it a nice boost depending on what diodes you use.  The MOSfet to Germanium Diode arrangement gives a warmer tone.  The Germanium Diode alone gives the loudest and nicest warm and smooth boost.  The LEDs and Silicon diodes (1N914/1N4148s) are very loose and wild.  They dont sound great by themselves.

Hope this helps.

EDIT: Links:
Clipboard Topic: http://www.diystompboxes.com/smfforum/index.php?topic=49318.0
Banika's Article: http://storm-software.co.yu/diy/index.php?project=flexi_clip

[aron]

I was specifically looking for Transistors as diode.

I see. Well, you can try any Si or FET as clipping diodes as mentioned here:

http://www.diystompboxes.com/wiki/index.php?title=Simplemods#Simple.2C_Easy_Mods.2FTips_.26_Techniques

Look for FETs as diodes.

[Izzy]

Hmm Thanks man, I appreciate. I have already read that article  a week ago. That article was helpful.
Looks like skotchy (spelling?) diodes are what I am looking for. Diodes that clips fast! hehe
I guess they clip at 280mv? I hope they are different than germanium ones.
So that means any mosfet trannies will do for clipper right?

So is it possible to add one more gain stage in DS-1 using transistor?

[343 Salty Beans]

There's a simple gain stage posted somewhere, I don't know where...but I have the schem on my comp. 4 resistors, two caps, a high-gain tranny and a pot. PM me and I'll send it to you so I don't offend anyone's posting requests.

[Izzy]

One final quitestion regarding this.

So the type of diodes doesnot really matter as clipper? Its only the diode voltage that matter?

If a germanium diode has .3mv across and a scotchy  diode also has same voltage across , does that mean I am going to get the same kinda clipping  with each one?
So no change  at all then?

[Izzy]

anyone?

[Izzy]

I guess I should Drop this IDea. Instead I will try to make this pedal a Super High gain circuit  (Atleast I will try)

Where can I find High gain , quiet Transistors at?

[343 Salty Beans]

2N5088s and 2N5089s are commonly used.

[Izzy]

Oh cool. Then I dont really have to look for Hfe?

[343 Salty Beans]

It would be wise to order a good amount of them and measure the hfe is each for the highest gain ones. You can mix and match 5088s and 5089s without a problem.