I want to build a simple silicone tonebender

[stopstopsmile]

I saw something about an easybender. 

I am looking to build a simplified tonebender, with mods for best sounds.  I want it to use simple easy to find transistors, silicone or germ but silicone because it can be easily found.

I want to nail those jimmy page tones, but be able to clean up a bit and be nice and warm and 60's english fuzz sounding

a nice tone control, gain, and volume.

I don't have a grasp on exactly how to do this, still learning. 

so I would appreciate some assistance

[cab42]

My third build was RDV's NPN Si Tonebender and it's still my favorite.

Its an easy build using 2N5088 and 2N3904 transistors.

You can find a (verified) vero layout in my gallery. RDV has schematic and soundclips here: http://fatboy.ssguitar.com/fatboy%20effects/Fatboy%20Effects.htm

Another easy, but great sounding  build is the Jordan Bosstone. Dragonfly has a cool layout. There has also been som great threads about it not long ago.

Have fun

Carsten

Edit: Spelling

[petemoore]

  one way is
  Get yer FF bias on over time and transistors, once that's tuned,
  Stick a booster in front of it, use the TB schematics and references as a basic guide.
  IIRC Q1 needs another resistor to bias right with Si.
The second stage Being a FF: Q2's pick about low gain, choose Q3 for gain also.
  Then set it up again, 'till it's 'right enough'.

[mac]

The simplest way is to use the original germanium schematic, and get some low gain silicons, 50<hfe<100, like 2N2369A which IMHO are the best for this. Another choices can be 2N3903, 2N3440, MPSA42.

The problem with silicon TB is Q1. Unless you use a resistor from collector to base it won't bias. Add this resistor and set collector voltage between 8.0 - 8.5v, a 1M or so may do it.  Then adjust Q3 collector resistor to set the voltage at around 4.5v. If you use the original schem with the 100k resistor at Q2 collector you'll need a 6k or so at Q3 collector. Look for the calculator in the wiki area, http://www.diystompboxes.com/biascalc/

BTW, some silicons may catch RF. If so, put a small cap (10pf - 100pf) from base to ground in some/all transistors. I don't like the usual cap from base to collector. These caps will also roll off some highs the silicons produce in excess.

mac