How to _learn_ to build a kick drum circuit

xiphocoleon · Joined: Oct 04, 2013 Posts: 40 Location: Brooklyn

Can anyone recommend where to look for learning how to build a kick drum circuit? I have built some Thomas Henry stuff and tried other drum schematics I've found online. I would find it more satisfying and easier to troubleshoot if I better understood the sub-circuits I'm linking together to create the larger circuits. The Thomas Henry circuits I've built were a good experience, but I'm out of 566 chips Smile

and I'd like to learn percussion synthesis on easily available parts, which I'm sure is possible.

Can anyone recommend drum schematics (particularly kick drum) that are connected with circuit theory/circuit explanation? Ideally I wish I could find a series of tutorials somewhere that discuss percussion synthesis.

Thanks!

xiphocoleon · Joined: Oct 04, 2013 Posts: 40 Location: Brooklyn

Maybe one idea would be to study the ideas around the twin-T oscillator which can be a versatile percussion tool, I think.

blue hell · Posted: Sat Feb 01, 2014 8:03 pm Post subject:

Don't know too much about the subject, but twin-T is something that has been used a lot for drum sounds .. since like the seventies.

elmegil · Posted: Sat Feb 01, 2014 9:22 pm Post subject:

I think a lot could be learned from the 808 kick circuit, which I've heard described as a modified Twin-T.

Eric Archer has some good stuff about it (and a redrawn schematic so you don't have to dig in the service manual if you don't like), and there are a number of discussions about it here as well.

RF · Posted: Sun Feb 02, 2014 2:29 pm Post subject:

Paging Richardc64!

Here's a link to his SDIY pages - It might be a good source for you.
http://www.sdiy.org/richardc64/new_drums/paia/paia_top.html

richardc64 · Posted: Sun Feb 02, 2014 7:05 pm Post subject:

Hi Bruce! Long time, no read.

Although that plan has been abandoned in favor of something that will be less work, the principles and techniques are still valid, and similar things have been posted here and there in e-m. I'll work up a less cluttered "Conga" schematic soon.

Some feel that bridged-T creates a better-sounding Bass or Tom than twin-T. Controlling the Decay would need a different method than what I used in the paia mods.

richardc64 · Posted: Tue Feb 04, 2014 7:57 am Post subject:

Google is your friend (when it's not spying on you).

Search: twin-T drum, bridged-T drum.

xiphocoleon · Joined: Oct 04, 2013 Posts: 40 Location: Brooklyn

Awesome. Thanks for these ideas. Commence research and Googling. Smile