ok i just built a sound to light circuit (colour organ) and works fine with line in, i hooked up a mic via a pre amp and no signal, i then tried a different design of pre amp and still no signal, i breadboarded a 3rd design pre amp and no signal, i thought this is really odd, i went out and bought another mic insert, STILL no signal so in desperation i ripped the mic off the board and fitted a piezo transducer i had laying around and hey presto, gallons of signal at the output, so my questions are thus..........
Can i use a piezo transducer in place of a mic insert?, why would a tranducer work and not a mic insert? is the tranducer as efficient as a mic insert?
the mic insert i tried is from the velleman sound to light unit kit, the transducer is from radioshack, the circuits i tried for the pre amp were an op amp design, a bipolar transistor design and a f.e.t input design, none of which work with the mic.
any idea's please?
Neil.
Can i use a piezo transducer in place of a mic insert?, why would a tranducer work and not a mic insert? is the tranducer as efficient as a mic insert?
the mic insert i tried is from the velleman sound to light unit kit, the transducer is from radioshack, the circuits i tried for the pre amp were an op amp design, a bipolar transistor design and a f.e.t input design, none of which work with the mic.
any idea's please?
Neil.