Darkside sustain problem

[mladen]

First, I want to say hello to everyone, I am new on this forum, and also new in building effect pedals. 

I made a darkside pedal on veroboard, i had problem etching board so I found verified version of darkside on veroboard, but I have problem - sustain is too low. I think the color of tone is good, potentiometers works, but when I turn sustain pot on maximum, I get only light overdrive, less gain then I get on Tubescreamer 

I checked everything and it seems ok, so I hope someone can help me with some idea?

Thanks. 

[mladen]

I checked one more time, and all values match the layout, there is just differences in resistors watage - some resistors are 1W instead of 1/4, but I think that is not the problem


There didn't notice any other problem, so I hope someone can help me to find out what's wrong... 

[gtr2]

You might get more help if you post a link to the vero you used.

Unfortunately it may still be hard if there is not schematic accompanying the vero

Josh

[mladen]

You might get more help if you post a link to the vero you used.

Unfortunately it may still be hard if there is not schematic accompanying the vero

Josh

You are right, I forgot to post a link to vero layout, here it is:

http://www.sabrotone.com/?p=2990

I think it is made by the same schematic as PCB layout.

Mladen

[marauder]

Whats the forward voltage of the diodes?

I've found with ones of less than 250mV, the Darkside had very little output, but had a nice tone.  The ones I used at around 320mV were much more usable.

[mladen]

Whats the forward voltage of the diodes?

I've found with ones of less than 250mV, the Darkside had very little output, but had a nice tone.  The ones I used at around 320mV were much more usable.

Thanks for suggestion, I will check that. 

[mladen]

I forgot to mention, here are substitutions I use:

-Two pots are linear instead of log
-Two resistor are 1,2K instead of 1K

I don't think this could make any difference, but I didn't use socket for transistors and diodes, so I afraid heat could damage them?