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Messages - mcasemo

#136
Open Discussion / Re: Multi Effect Box
May 18, 2014, 06:10:57 PM
Quote from: atreidesheir on May 18, 2014, 04:45:34 PM
You probably know already, but be sure to link, by wire or solder, the aluminum shielding on the top and bottom sections for the most effective shielding.

certainly!  actually was going to let the clamping of the top to bottom via the hinge and latch to press the two aluminum surfaces together to connect them, then ground them with wire to the circuit ground. 
#137
Open Discussion / Re: Multi Effect Box
May 18, 2014, 04:00:27 PM
Quick update on my slow slow progress.  The box is now a tubescreamer, sola sound tone bender (3 knob), foxx tone machine, rat, small stone phaser, echo base, and spring reverb with tank.  small stone phaser (space harp) is in work with univibe switches, everything else worked before mounting.  still have patch board to work up, then figure out the artwork for the box.  having much fun with this




#138
thanks jimilee, i think i looked at road rage early on, now i understand it a little better.

thanks juansolo, looks like that will give by -9v as well!
#139
I have a power supply question for my multi-effects box I'm building.  Sorry if there are simple answers already out there, I've been searching and my head is numb. I've got 7 effects to power, most are +9V.  One requires bipolar 12 v (+/-12v).  I may onboard a -9v, but not really in the mix now.  I have many AC adapters from various electronics (20V, 12V,  9V, ...), so I'm trying to figure out how to provide all the power from one of these adapters.

I've been reading about DC-DC converters with Dual output, and using mouser to drive down to something that may work, like taking 20v from an AC adapter, and getting +/-12 using something like Cincon EC3AW05.  Then using a regulator to step down the 12 or 20 to 9v for the others.

http://www.mouser.com/ProductDetail/Cincon/EC3AW05/?qs=sGAEpiMZZMvGsmoEFRKS8IScV8SUvsqqfAu%2f6W%252b3X9M%3d

So for something like this, do I have to supply +Vin and –Vin?  Or is the –Vin generated by the DC-DC converter?

Any other thoughts?
#140
Open Discussion / Re: Multi Effect Box
April 08, 2014, 06:41:44 PM
Thanks Lee.  I've been thinking much about graphics, but can't commit to anything until i have at least 25% working!
#141
Open Discussion / Multi Effect Box
April 08, 2014, 01:46:31 PM
Introducing my self so i won't get purged.  I made an octave double fuzz (Anderton) circuit on perfboard 18 years ago, got it working, then I had a plan to make a few boards and put them in a wooden box, even made the box.   Then sorta stowed it away.  I'm not a good player, but I mess around a bit.  Got married, new job, moved twice, have kids, 18 years later I find a whole world of guitar effect diy, kits, etc... out there.  I found the circuit and it still worked. 

So I have the bug now and am going to fill this box up with as much as I can.  It's wood, I know I have to shield it and all.  I'm putting the following in it (plan for now at least).  1) LPB-1 Boost, 2) EM-Drive, 3) Fuzz Face, 4) echobase (delay with modulation), 5) rat with mods, 6) foxx tone machine, 7) spring reverb with on board spring tank. I have 3 complete and am troubleshooting 2, have the rat and echobase near complete.   i have the spring tank, and the pcbs for the tone machine and reverb on the way. gonna have a patch board on top to set the order.  Not sure if I will ever complete it, but have a whole lotta fun!

Cheers,
Mark