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Hi guys
second time that I do the famous Dr Boogey .....
But even with shielding technics, not possible to have an acceptable noise at high volume ...
Therefore I've tried several transistors config even if it decreases slightly the disto.
Quickly, exit the mpf102, I've found it too much muddy (even when replacing just one J201). The sound is darker.
Then I've tried the 2N5457. From my opinion this is a good choice even if I prefer slightly the J201. In fact, it sounds differently to my ears.
- the noise strongly decrease  .
- the gain remains at a high level even if not at the same high level than with the J201.
- The sound has a bit more bass, is "hoter"
- With the J201, the pedal sound is sharper ....

I would have prefered to keep the J201 to keep the sharp, but for the noise control it is from my opinion a requirement to use 2N5458. But it remains a quite good pedal even with this transistor.
To be noticed: I've changed the 2 first J201 (2 first stages) + output buffer, because I've found it gives a good balance in term of bass-treble.

I have had one regret with the PCB: it just misses 1mm between pots to be able to mount them straightly on the PCB (and saves a lot of wires). But this mm cannot be added (if it was, it could not be possible to use a 1590B enclosure). One good idea could be to have 2 different lines of 16mm pots across the PCB, solded back side (I've already done that for a 5cm = 2 inches PCB).

Thanks




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Hello
easy to do .... but quite usefull !
2 road rage in a little box in order to supply easilly pedals.
In fact I dit it initially to test the voltage supply effect of a little preamp named duoclean I've built recently (scheme on well known french site).

See you soon


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Hello
my new pedal: a darkside + kokbox in the same enclosure. Photos attached.
The idea was to have a box with a high depth for the rear of my pedalboard, and use this depth to enclose 2 circuits.
For the darside, I've replace the standard SUS pot by a 500K + 1nF as noticed in the madbean pdf. Concernig diodes used: BAT41. I've tried a lot of diodes, and this is by far the best choice from my opinion.
For the kokbox, no specific mod.
Based on G-2 video, the sound of the darkside seems quite close. The overdrive/fuzz are effectivelly dark, I like.
The sound of the kokbox : a lot of disto, but I think this pedal is not fully for metal (even if you want to remove a lot of medium, it is not possible with this pedal). I like the sound of this pedal and mainly when the medium button is near 0. A pedal to try !

A bientot

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Hello all,
my uproar is now finished, I'm quite happy: I love the sound of this pedal !!!
I attach the photos ....

In terms of mods compared to the madbean's documentation:
- First I have used a on/on/on switch for diodes selections.
cf http://www.madbeanpedals.com/forum/index.php?topic=1288.0
for the wiring diagramm (Madbean's scheme).
NB: I can hear a difference depending on the switch position...
- My impression with a 100K pot for the gain is that -compared to youtube videos-, I had not enought drive/disto. Then I've replace the 100K pot by a 250K
- The 10KC pt has been replaced by a 100K. This value allows a better control of the tone, but when the pot is turned counter clockwise, the volume decreases progressivelly. Increasing the volume is then required to compensate.

More news in the coming days/weeks (if necessary) ...
A bientot



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Hello all,
I'd like to share with you my SnackShack pedal pictures and mainly provide few comments and experiences I've had, hoping it will be usefull ....
Photos are attached.
Building this pedal, I've found that
- using the input circuit described in the forum (freestompboxes) with the R=1M pot and C=4.7uF in // of C1 (in order to be able to control the input tone) is not efficient (even using several capa values). Its action seems quite limited. It is more efficient for me to use a ON/OFF/ON switch and add 2 different capa values to the one - C1- used in the PCB (Typically for me: 10nF on the PCB, 33nF on one part of the switch, and 220nF on the other part). 10nF, sound is high pitched, 33nF  (+10nF) is a good balance, 220 (+10) nF increases a bit more the darkness. If MadBean's PCB could offer 2 slots for different capa, I think it could be a nice improvement   ...  
- replacing R2 by a "Gain" potentiometer of 1K lin (NB: with the capa C4 connected to the middle lug of the potentiometer) is a strong disappointment. Sound becomes horrible when potentiometer used. Just the last 10% of the potentiometre is usable. My thinking (even if I never tried) is that it would be better to use an antilog, or perheaps better a Ra (frozen) + Rb potentiometer with Ra+Rb=1K (or something like that).
The best from my opinion remains to use the guitar volume. Sound is then always good and even better compared to the last 10% of the gain potentiometer.

I'm not usually a fan of the fuzz pedal, but this one is quite good ....!

thanks

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Hello all,
first sorry for my english but i will do my best !!!!
just I'd like to share with you my aristo built and few feedbacks ... I've too one question -at the end of the post-.
Pictures of the pedal are attached.
- When I've tried the pedal with my les paul, I've been a bit disappointed. Then I've turned the buttons and change switches in all direction :-), and my conclusion is that we can achieve the best and the worst.  Some configurations give a very good sound, some others are really bad ...
One step after, I've plugged my G&L (single coils). Very good sound (whatever switches position)!
- Activating the switches to increase the overdrive, the pedal generates more and more highs.
If I use the first pedal as boost and light overdrive, C1 = 33nF seems a good value, sound is well balanced. If I want to use the second pedal as an overdrive (even stand alone), I suspect that increasing C12 could be a good thing to kill a bit the highs (not tested)
- Presence trimpots turned in the counterclock wise don't provide a good sound to my ears, but it is good if I increase in the clockwise (but more highs and brighter). Therefore trimpots are at the middle, the best for my ears
- Increasing the R value of the gain potentiometer is quite good to increase the overall gain. I have used a 500K which is perfectly OK
- PCB is really well build and fit perfectly in a BB enclosure. Just take care of C1/C3/C4 and C12/C14/C15 size ...
Now one question: is someone tried to supply the pedal with 12 or 18V ? I guess, seeing components datasheet and circuit that it should be possible .... Is it right ?
Thanks


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