The DM77 is a Drum Synthesizer, inspired by the Coron DS8, with improved characteristics.
The DM77 is ready for its official release in version 1.0. Before, here’s the last prototype version 0.5. Except maybe few value changes on some resistors, the circuit is final and will be the identical in 1.0.
Continue reading DM77 – V0.5 – Documentation and assembly guide
This is an update of the 606 Bass Drum clone: version 1.2
Continue reading 606BD 1.2 – TR-606 Bass Drum clone
Things are going well with the DM77. A new revision of the PCB is on my desk, ready for some tests.
In the meantime, I’ve just received the new 10HP Front Panel. It’s cute in black!
See more pictures in the Photo album.
The DM77 is a clone of the famous drum synth Coron DS8. It’s essentially a VCO associated with an Envelope generator and its VCA. But it can also be used as a simple, almost standalone, synth.
Here’s a quick demo of two DM77 playing the Chase theme by G. Moroder. The purpose of the video is to show the 1V/Octave tracking capabilities of the DM77.
I’m still working on my DS8 Clone. I made 2 previous versions, but I’m not satisfied enough. The fact is DS7 or DS8 drums and their “clones” suffer from the original design flaws. All those clones are copies from the original model, with some additions. But they inherit the poor quality design. To mention a few, the low amplitude output, the poor noise source, the linear release enveloppe shape, the lack of punch on attack, the lack of 1 V/Oct tracking… And it’s not easy to debug.
So, I decided to completely redesign the guts of my next Drum Synth. Same behaviour, better characteristics.
Continue reading My new DS8 Clone isn’t ready yet, but…
I’m working on a DS8 clone.