Bass drum simulator module for electronic drum set. Scheme, description

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Bass drum simulator module for electronic drum set. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Musician

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Finally, I decided to unsolder the electronic unit of my drum kit in order to restore the circuits of its modules. In this circuit, the signal from the sensor is fed to the shaper of a very short trigger pulse, with an amplitude proportional to the force of the hammer strike, on transistors VT1-VT3. The inhibited drum sound frequency generator is made on a VT4 transistor. Transistor VT5 is used to simulate the overrun of the frequency when the beater rebounds. The output signal goes to the tool totalizer module. The use of amplitude-dependent excitation of the retarded oscillator made it possible not to use an envelope modulator. The trigger pulses are also sent to the output of the circuit for processing in other modules. The design of the sensor will be described in detail later...

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Author: E. Shustikov (UO5OHX ex RO5OWG); Publication: shustikov.by.ru

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