10v gate triggers need to be scaled down to <3.3v so as not to damage the Tsunami board. I'll be using a transistor as a basic gate controlled switch with the pull-ups enabled on the Tsunami. This means that IF gate = 10v @ base of 2n222 xtror, then the current is enabled to flow between Tsunami pin to ground, which will result in a trigger to the drum sampler features. Each drum trigger gate will require a separate xtor circuit to protect the Tsunami board.
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PCB design. Here I've simply duplicated the schematic x 16 trigger junctions.
PCB circuit trace. The same can be achieved using only 1 x 47k resistor on the gate input to the base of the transistor. So I'll be leaving the extra two resistor terminals unpopulated.
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for all those triggers. I'll use jumper wires between the Tsunami board and on all these 16 sets of standoffs x4.
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Tsunami - Sampler Module
Sampler module for modular synth. For use with midi input keyboard sampler or can be triggered via +10 v gate signals provided by external modules. Great for use as drum sampler module. Also a nice noise source for rain, thunder, insects or whatever.
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