I'm trying to tap into the drum machine via the touch pads on the sr16
the problem is that i need to make a switch and nd controll velocity with a single piezo sensor .
i've tryd with a npn transistor .....it's sort of working but not triggering every time, dont think theres enough power from the piezo on lighter hits
i think i need to use a fet but i'm a bit lost with them, the circuit diagrams i've seen with them seem to be on untill a voltage is supplied to the gate but thats the opposit of what i need
dose anyone have or know any circuit diagrams that may help pleees
the problem is that i need to make a switch and nd controll velocity with a single piezo sensor .
i've tryd with a npn transistor .....it's sort of working but not triggering every time, dont think theres enough power from the piezo on lighter hits
i think i need to use a fet but i'm a bit lost with them, the circuit diagrams i've seen with them seem to be on untill a voltage is supplied to the gate but thats the opposit of what i need
dose anyone have or know any circuit diagrams that may help pleees