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by **Chunky Kev** » Mon May 07, 2012 8:53 am

Hi dmitri,

this looks great and I am planning to build one once I have worked out all the components and best prices etc. Need help to clarify what L1 is though. A 1uH inductor, but I am not sure exactly what I am looking for. Can you help with link on Farnell site please.

by **dmitri** » Mon May 07, 2012 11:26 am

http://uk.farnell.com/bourns/79f1r0k-tr ... dp/1800107
But if you don't know what an inductor is you may get in trouble when building MegaDrum.

by **Chunky Kev** » Sun May 20, 2012 9:07 am

Anyone got any PCB designs for the 56 Jack inputs. I have Synthex's 32 input Jack PCB designs, but would like the 56 if its out there?

by **oskar** » Sat Sep 15, 2012 3:54 pm

Note: In the 3d view of KiCad I saw that at the pad connector 2 position, 24 instead of 20 pins were placed. The rest looks fine, I'm going to build this one.

by **oskar** » Sat Sep 15, 2012 7:45 pm

Dmitri,

Please, just to be sure.
Is it correct that the resistor on R17 should be a 4k7 and not a 47k ?

by **dmitri** » Sat Sep 15, 2012 9:10 pm

R17 is 4k7.

by **oskar** » Thu Sep 20, 2012 9:32 pm

Almost all the components arrived. I'll share the project with you guys including some images. I've (almost) decided not to design a seperate PCB for the Jacks, for sure no PCB for stacked jacks because I figured that the design for the 56 PCB will also need some modifications.

by **oskar** » Fri Sep 28, 2012 4:05 pm

Some confusion..,

1. According to the KiCad "Megadrum56.brd" pin 15 and 16 are GND. However according to the (Megadrum32) "input sockets.sch" these are the rims of tom 2 and 3. Where did I go wrong?
2. I could not find anything about how to connect input jack 18 to 29 (P2). Can anyone help me out please?

ALREADY FOUND IT in the instruction manual, as mentioned by Dmitri already, in topic viewtopic.php?f=3&t=1420 (56 inputs MegaDrum kit for sale). After several times getting the message "Unable to open, file maybe damaged". I was able to open it.
I build a 29 jacks version with a manual switch for the pedal impedance.

by **cschlipp** » Tue Oct 09, 2012 5:49 pm

Hi dmitri,

I've noticed that L1 is 10µH in 32i but only 1µH in this 56i schematic. Is this correct?

Just out of curiosity - what is it needed for?

by **dmitri** » Tue Oct 09, 2012 11:02 pm

http://www.megadrum.info/forums/search. ... mit=Search

www.megadrum.info

MegaDrum 56 inputs latest schematic and PCB

Re: MegaDrum 56 inputs latest schematic and PCB

Re: MegaDrum 56 inputs latest schematic and PCB

Re: MegaDrum 56 inputs latest schematic and PCB

Re: MegaDrum 56 inputs latest schematic and PCB

Re: MegaDrum 56 inputs latest schematic and PCB

Re: MegaDrum 56 inputs latest schematic and PCB

Re: MegaDrum 56 inputs latest schematic and PCB

Re: MegaDrum 56 inputs latest schematic and PCB

Re: MegaDrum 56 inputs latest schematic and PCB

Re: MegaDrum 56 inputs latest schematic and PCB

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