simple 2 knob hi gain distortion..collaboration?

[deadastronaut]

hi roberto:  that looks fine, but put the unused input 3 to ground too ok...then it'll be fine!.  cool layout.

its been a while since i messed with this, i remember i used input 3 on the bastard sister...!

but on the big bastard i used input 2...

i would socket the cap that goes into the input on the 386 for your/amp/ taste ok...have fun!.


i always wanted to whack a one knob tone control on this but never got round to it...the tone from the 'spitfire' would probably go nice on this!!!!...

theres pleny of volume on it to cope with any loss of volume if you added one..

[GodSaveMetal]

hi roberto:  that looks fine, but put the unused input 3 to ground too ok...then it'll be fine!.  cool layout.

its been a while since i messed with this, i remember i used input 3 on the bastard sister...!

but on the big bastard i used input 2...

i would socket the cap that goes into the input on the 386 for your/amp/ taste ok...have fun!.


i always wanted to whack a one knob tone control on this but never got round to it...the tone from the 'spitfire' would probably go nice on this!!!!...

theres pleny of volume on it to cope with any loss of volume if you added one..

Thanks my friend for your recommendations; I have to applied it soon; an a question!! I see that a resistor an d a cap in the pin 1 of gain in one of the layout are loosed?? in your scheme there is a resistor an a cap between pin 1 of gain  pot and pin 2 of this pot to pin 8 of the IC!! this is Right?? thanks man it sounds awesome in your YOUTUBE sound!!!
I want to know what layout you use in it??

[deadastronaut]

hi man , i'm pretty sure i used this layout (from breadboard video) . note the socket cap..

it actually uses pin 3 input instead of 2 ok.....for a bit more gain iirc....



http://www.aronnelson.com/gallery/main.php/v/chickpea/bastardsister1.gif.html




have you got a breadboard?...its quick to put on a board to try out!...

[GodSaveMetal]

hi man , i'm pretty sure i used this layout (from breadboard video) . note the socket cap..

it actually uses pin 3 input instead of 2 ok.....for a bit more gain iirc....



http://www.aronnelson.com/gallery/main.php/v/chickpea/bastardsister1.gif.html




have you got a breadboard?...its quick to put on a board to try out!...

OK thanks it's clear man; I've made a PCB all in one without any cable and jumper; all in one circuit; If I've time I will put a photo of the creation!!! THANKS man it's great!!!!

[deadastronaut]

cool, i look forward to seeing/hearing it...

[GodSaveMetal]

cool, i look forward to seeing/hearing it...

Well man this is my design of all in one, from this:

The part named main pots layout, were I solder all the parts and POTS; this PCB is solder in 90 degrees in a base PCB named JACKS PCB:

Well it's only the design; I will make it the next week o in a few days!!! I take it photos soon!!

[deadastronaut]

that looks great...nice one!....

erm...deathastro?....not deadastro?...

what programme did you use for that?....its really pro looking!..

[GodSaveMetal]

that looks great...nice one!....

erm...deathastro?....not deadastro?...

what programme did you use for that?....its really pro looking!..

OK OK I will correct the name!!!! jajajajaaaaaaaaaaaa!! I use the SPRINT LAYOUT I'm a vicious of that program 100% recommendable for pedal mods!! it's great man and you will able to do your signs libraries!!!!! I made my ones!!!

corrected;

corrected; anymore errors you see? please tell me!!! thanks!!

[deadastronaut]

looks fine to me..

[GodSaveMetal]

looks fine to me..

A final note, the bias control for the JFET in your scheme is a trimpot 100K, and in others 25K, or 50K what is the best?? or a multi turn ones??? and the voltage will be 4.5V??

[deadastronaut]

25k will be fine... those others were all i had to hand at the time......

turn till it sounds 

[GodSaveMetal]

25k will be fine... those others were all i had to hand at the time......

turn till it sounds 

OK thanks!!!!!!!!!!!!!!!!!!!!

[nakanaka]

can I use other JFET than J201?
mpf102 or 2N5458 for example....

[deadastronaut]

yep...

[GodSaveMetal]

OK!! this is my new adiction, a 3D figure of this pedal; my new colaboration:


Enjoy!!!!!!!!!!!!

[deadastronaut]

@roberto:  that looks cool.  great work.

i must get round to whacking a good one pot tone control on this one day too.........

[meffcio]

I wanted to make a little practice hi-gainer, so I combined some schematics, and voila.
http://www.mediafire.com/view/?d8kmgdyxae1gzzt
Nothing fancy, just Lil Bastard+SWTC+Dual LM386.
Here's the file from old DIYLC.
http://www.mediafire.com/?il9dgtg2priab2a
What do you think - will it work? I'll probably try to make it tomorrow.

[psychedelicfish]

@meffcio, From what I've heard, the 386 doesn't like being bridged, you might be better off doing something with a TDA1905, or some other small power amp chip. Otherwise, breadboard it and find out!

[meffcio]

@meffcio, From what I've heard, the 386 doesn't like being bridged, you might be better off doing something with a TDA1905, or some other small power amp chip. Otherwise, breadboard it and find out!

Well, that's the problem, I don't have a breadboard. Only perfboard, and that's why I made this layout already.
Anyway, I used LM386 for two reasons - I have just enough of them, and they only need 2 additional components in this configuration. TDA1905 looks nice, gives a lot of output, but needs a lot of other components, which I may not have, and which would make my board grow a lot bigger. Still, I'll try to find it somewhere and experiment. But right now I also have TBA820, and TDA2822, which both could give good results, but still need some additional stuff to work. Maybe I'll experiment with TDA2822, but I'' certainly look for TDA1905 someday. For now, I'll stick to LM386 and see what happens.

[alfafalfa]

Meffcio ,

My virusscanner tells me there is a virus in your 1st file !  Are you aware of this ?