Belcat acoustic instrument transducer - No sound

Discussion in 'The Projects Forum' started by vol_, May 10, 2016.

  1. vol_

    Thread Starter Member

    Dec 2, 2015
    93
    3
    A friend gave me a mandolin and the transducer of the following site:

    https://www.banzaimusic.com/Belcat-EGT-202-Transducer.html

    I connected the belcat into a TDA7052 amp with a MPF102 buffer with input impedance of 3.3M. The amp is working well with electric guitar or acoustic guitar with preamplifier, but from the belcat i get no sound. And i got at the output of the amp a weird noise, like a buzz comes up from a deep well.What is going on?

    Any ideas about my problem?

    Thanks and have a goodnight!
     
  2. vol_

    Thread Starter Member

    Dec 2, 2015
    93
    3
    OK, after all i got output signal, but it just doesn't sounds. It can't be heard. Many people commented for this belcat product that it needs a preamp. So i think i figure out the problem.
    But all the piezzos need a preamp? Another friend made an lm386 amp an used as an input a piezo from a vacum and it was sounding loud and clear enough.
     
    Last edited: May 10, 2016
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