Any simple bass drum schematic? or snare?

[wahoah]

Hi!

Ive been serching for a simple bass drum schematic and havent find anything, a snare could be great too or a hi hat

anyone have one?

[-minus-]

Hi. I'd suggest the Korg Monotribe drums. They are transistor based. I have recently built the 3 voices on pieces of stripboard. They are quite straight forward and will run on 9V. You'll need a noise source too. I made a simple two transistor white noise generator which works fine. Breadboard the circuits first as I found by fiddling with the values I got a better result for what I wanted. I also added a open hat sound. Here's the schematic...

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[wahoah]

[-minus-]

What I did with the input is this. I removed that section you circled on the schematic and replace it with a diode, 100K resistor to ground, and 0.1uF cap. This means I can trigger the drum to fire using a gate signal of any length. I am using these drums in my logic synth/Lunetta so it is handy to be able to trigger the drum from a logic signal..

I used 2N3904's in mine but a 2N222 should work as well. Also, I added the output transistor section to the right of the schematic from Korg. I left off the PORT section and just added everything on the right of that. This gave the kick drum heaps more BOOOOM. Oh, and I used a 1K pot going to Ground where Korg have BD DECAY labelled. This gives the kick drum adjustable decay to a point of self oscillation.

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[-minus-]

Sorry, I should have done this before. Mine looks like this:

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[Tony Deff]

[-minus-]

Thers some reasonabell chimes to be had from Ken Stone's Chime Simulator...

http://www.cgs.synth.net/modules/cgs19_chime.html

I built this and the bells are quite convincing although not easily retuned.

Or for a kick sound you could try Eric Archers Mini Space Rockers...

http://ericarcher.net/devices/mini-space-rockers/

I built this too. There are three caps you can experiment with to get a variety of tones. This is a simple circuit and easy to breadboard and play around with. There are some sound files on Eric's site with various cap sizes and the sounds they create. I couldn't make my mind up on the caps so I used three twelve position rotary switches... giving me... 12 X 12 X 12 variations

[Uncle Krunkus]

Don't forget Thomas Henry's MPS. It is a lot of kit for 1 drum, but it definitely allows for everything. 3partials/RM/Noise filter.
It's a very small board too, laid out by yours truly!

[wahoah]

ive just breadboarded the Bass Drum from the monotribe korg, i like it but i need a little more bass and deeeper sound

any recomendations?

[elmegil]

http://electro-music.com/forum/phpbb-files/kick_and_snare_652.mp3

That's from 808 and snare stripboards from here:

http://electro-music.com/forum/topic-37646.html&postorder=asc
http://electro-music.com/forum/viewtopic.php?highlight=808+snare+stripboard&t=45134

[-minus-]

[wahoah]

[-minus-]

Yes, that is correct. Is it having no effect for you?

[KRS1972]

Hello !

have you seen this topic ?
http://electro-music.com/forum/topic-28447.html

I build this one, and it is a great sounding bass drum.
grt,
Chris

[EATyourGuitar]

what you want is a simple sine VCO and a monostable source like a 555 RC lowpass'd to get a decay envelope. your envelope controls the pitch of the sine wave. you can skip the VCA if you just high pass the bass drum sound right around 100hz. that should give you a nice fade out from a single envelope.