Simplified Silicon Tonebender 3-Knob

Started by mac, May 03, 2010, 06:26:26 PM

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azrael

Doh! Somehow I had forgotten that you had posted a link.

Hm...Does it sound much fatter in person? Regardless, I drew up a vero layout in class the other day, I may put it together later tonight. :)

mac

it sounds better of course. i do not have a good rec gear at home.
i was about to draw a pcb using photoshop. i was going to include a coupke of extra things to make it customizable, like the possibility of adding a parrallelcap to help the 10uf crappy electro.

mac
mac@mac-pc:~$ sudo apt install ECC83 EL84

azrael

Don't like DIY Layout Creator? I was probably going to use that if my drawn vero works and thus verified, to make an easily readable and clean layout.

mac

i've been using photoshop since version 1. i'm too old to change!!!  :icon_wink:

mac
mac@mac-pc:~$ sudo apt install ECC83 EL84

mac

I added in my gallery a PCB and Layout TIFF file at 288 dpi (2.6mb)
I think it is correct, let me know if you find errors.

mac
mac@mac-pc:~$ sudo apt install ECC83 EL84

azrael

Still need to test it, but here's a pic!


I hope it sounds good!

mac

Hey, it looks better than mine!  ???

Let me know how it sounds.

mac
mac@mac-pc:~$ sudo apt install ECC83 EL84

azrael

Haha. It's essentially your PCB on perf. I didn't feel like etching. Voltages seem great! 4.6V on Q2. :D

azrael

Wow, sounds great!
I recorded a clip (complete with shoddy playing) with my iPhone, I'll have to upload it later.

It works really well, very much like the Ge version. Excellent design!

delay dude

Does anybody have the schematics of a silicon Tonebender mk1.5?

All I could find is this germanium tonebender mk 1.5:

Derringer

I'd imagine any silicon fuzz face schematic would do just as well

I imagine you're using NPN silicon?

if so, just plug them in with everything the same except:
flip the polarity of the 5uF and 25uf electrolytic capacitors
put a 10K trimpot or potentiometer in the place of the 8.2K collector resistor of Q2 as a bias control (most seem to like 4.5v here but let your ear be the judge)
use a positive power supply with NPN transistors