Hi everyone!
not my first madbean proyect, but the one I show here ;) It's a sunking one. I had to work a lot to fit it in a 1590b but finally it was possible (with even room for a battery). I hope you like it.
(http://i152.photobucket.com/albums/s190/jlsantamaria/pedalicos/IMG_0708.jpg)
(http://i152.photobucket.com/albums/s190/jlsantamaria/pedalicos/IMG_0713.jpg)
(http://i152.photobucket.com/albums/s190/jlsantamaria/pedalicos/IMG_0722.jpg)
(http://i152.photobucket.com/albums/s190/jlsantamaria/pedalicos/IMG_0723.jpg)
I've used 1n34a diodes, but maybe I'll try other ones (I've used sockets) because I think they're a little "soft".
good job, tight fit. looks good.
Very nice! It's no easy feat fitting that one in a 1590b!
Josh
Very neat job mate.
Good Work!
very nice, you can tell this is one of those builds that wouldn't fit if the PCB was any larger or the box was even a little bit smaller.
good work.
Good work! such a nive build
Thanks everybody, glad you like it!!
good job! I'm having a heck of a time with mine...& the fact that you squeezed in the battery too!
impressive! what kind of diodes are those?
Quote from: josetxu on May 05, 2011, 03:36:00 PM
I've used 1n34a diodes, but maybe I'll try other ones (I've used sockets) because I think they're a little "soft".
Jacob
I've used 1n34a. Until 2pm in the gain control It's maybe too clean and past 2pm it's where all the drive it's being, so maybe I'll try other diodes. (well that with a strat and fender vibrochamp, I have yet to try it with more volume and a bigger amp)
Great job! That is a super tight fit. But I bet you have a great sounding pedal!
I was looking at your board pic posted above. Looks good. Was wondering something. When checking out the board layout verses the schatic that Brian has provided in the sunking PDF doc, the schem denotes the clip diodes to be reversed from each other. The board itself depicts they both be arrange with the same polarity (stripes to ground). I wonder which one we are really supposed to do here and if putting both stripes to ground makes an impact!
I first noticed this because this is how your 34a's are hooked up in the pic. Am I correct or am I blind.. hehe
I'm interested in trying this.
What you're not noticing is that the connections on the board aren't side to side! You need to have both of the diodes oriented as the layout says, with the stripe downwards, towards the bottom edge of the board. If you look carefully at the documentation, the layout there clearly shows that the connections are being made as they are supposed to be, even though it might seem like the diode is backwards.
The image in this post is correct. If you put your diodes in with the stripes facing the wrong way, that might have been responsible for some the earlier problems you were having with your build.
Jacob
Ahhhhhhhh.... Makes perfect sense!
I have them reversed in there right now, but that must mean they are not reversed at all.
But the tone is so gooooood! I will reluctantly try the right way. I am absolutely lovin' the tone I have on mine at the moment, but this inherently makes more sense. Hmmmm... missed it completely! Thx for the insight. I had never really looked that closely on the board itself!
Conclusion... LM313H is a bipolar reference diode.
1n34a's and BAT41's worked when installed correctly, but the LM313H whips them all over the wall!
Havin two sunkings in one box helps with the auditioning of diodes for sure!
Those diodes are upward of $20 each!, they must sound fantastic, did you have them already for a time?
I saw that after I realized how nice they sounded. Seems to be an insane price. But hey, if someone wanted to give me 20 bux a piece for a thousand pieces, I'm game.
I had them stashed away in my personal stock. Never touched by human hands. Had no idea they were worth that much. It pays to never throw anything away.
I also have two other types.
CR100
CR220
Several hundred NOS unknown zeners with Gold Filaments as well. Sheesh... I'm always finding stuff!
I need to try these as well.
I've yet to try more diodes, I've tried banzai's 1n34a and some old germanium diodes I've have lying arround for a long time (OF305). In both cases the drive doesn't really start since past middle in the gain control but... what a sound!! I tried it yesterday with my '63 vibroverb reissue and it sounded incredible.
I will surely change the volume pot for a logarithmic (audio taper) one for better control of the great amount of volume gain available.
Thanks everybody!!