This project came to life due to the fact that i had *way* to many 74XXX ic's laying around just being useless all the time. I figured i should do something with them, the gigant calculator idea seemed like a funny but slightly retarded project so i needed something better.

Being a programmer who likes low-level languages like assembler i figured that programming a digital drummachine without a cpu, using logic ic's instead would be fun.

Unfortunley i misstook a minor error for being too much current being drawn from the PSU so i replaced a bunch of the TTL's with CMOS chip, removing the "TTL only" stamp from the project.

I'm terribly happy about the panel, took me a couple of hours filing. i managed to make the start/stop button hole way too big, but it's a learning project so... Lettering is made with 70's rub-on letters fixated with hairspray (if it can hold a 1 foot mohawk it should be able to keep some letters in place!).

64-pattern, 8-channel trigger sequencer. Now with complementary dr-110 clone voicing board!

Apart from not having a backup battery for the SRAM (which means that all data is erased during reset) and not having inserted physical outputs for all triggers, everything's working fine.

coming...