Bass Drum emulator

[El Heisenberg]

Saw this on electric peasants site and really want it.





http://www.electronicpeasant.com/projects/bassbox/bassbox.html



It runs off bipolar 18v. I wanna run it of plain 9v, but I dunno if that'll make the thing sound TOO crappy.

Anyway it's pretty cool so at least maybe someone'll see this and think it's as cool as I do.

[El Heisenberg]

COuld I even do this at plain +9v??

I'd be willing to biuld it's own power supply or use two 9v batteries if that's the case, just wanna know if I could do it. I would rather run it on the same supply as my pedal chain.

[petemoore]

  Unless a design whiz, building the verified circuit as design standard is recommended.
  I've wanted to construct it and compare for bass drum analog sounds.   
  My bass drum sounded pretty wretched and intractable on my recordings.
  With various extra processings even, I think a peizo glued on a board signal processed through any reverb would make additional playback pleasure to what I was able to source off from that 'ol BD, sounded sorta normal in the room but all attempted tracking made hideous BD track playbacks.
  The extra battery and clip is worth it, 2 lasts longer than 1 [void if left on overnight] and makes a working circuit to design a lower voltage attempted work-alike around.
  A voltage doubler circuit can make the current it's chip is rated for, probably enough in a MAX1044 even that building the +/-9v supply for this board would make it a ''plug-in-to 9V supply and it works at +9/-9'' supply deal. 
  The 1044 is the only part# I can remember.

[nick d]

                       I saw this a while ago , it is on my " might do " list . I think it might work on 9V , using a " psuedo-bipolar " supply , have a look at the " Daleks Handbag " thread . Could be headroom issues in a percussive circuit , and as this is a fairly big circuit , bipolar supply ( like the one in " Gristleiser " ) would not add much to the cost , and avoid the problem . Interesting , none the less , could be fun !

[petemoore]

 I couldn't find anyone who has tried it yet.
  Apparently it works and has been used to record with.
    I was thinking of just building in verbatim and try to glean a little about how it works as I go.
  Put a little trigger voltage and this produces a resonant circuits reaction, LF makes it bass drum territory, almost anything percussive [doesn't even have to resonate so much] with reverb can make a drum-in-cave type tone...it's mostly about not having ghastly mid and short lived highs at the attack onset, and the right amounts of attack / sustain.

[Nasse]

I have a tested and 100% working (with a twist) vero layout for +/- power supply with single ac voltage wall adaptor input, might be good enough for the job.

[El Heisenberg]

eh, I guess two 9v batteries will do ok. I don't use batteries for anything. But I guess it won't matter as much with this. I prolly won't even mind how big it's enclosure gets.