Trombone Sound | Electronic Project Circuits

Posts Tagged ‘trombone sound’

Peal from the transistor

The work of the circuit,which the Tone audio generatorcircuit will distribute to is 2 part, be first part is will the part frequency generator modern by using transistor 2 pcs. build be frequency generator circuit astable multi vibrator which Q1 and Q2 work alternate. When Q1 work LED1 stick lay part C2 begin charge with regard to Q1 and Q2 work alternate will cause the frequency goes up and when C2 charge the full have current flow go to at a pin B of Q2 make Q2 bias LED1 not bright. If Q2 work have current flow through R4 change a pin C go to still a pin E of Q2 down ground make have current flow through R5, R6 go to bias pin B of Q3 make Q3 work PZ1 as a result oud by have C1 will charge full until and when Q2 stop work cause Q3 stop work with, but have voltage from C3 discharge give PZ1 make the loud sound quietly, diminish resemble bell sound.

Be the first to comment - What do you think? Posted by admin - August 7, 2010 at 9:18 am

Categories: Audio diagram Tags: buzzer driver circuit, buzzer sound, trombone sound

Mini Trombone Sound generator by LM3909

This be Mini Trombone Sound generator circuit. By using integrated circuit the number LM3909 of NS. In using loudspeaker 25 Ohm sizes work by use voltage from AA 1.5V battery. In sound occurrence that resemble with trombone.
It have the work depends on the principle uses voltage, which the generator by the occurrence Resonance of sound coil of a loudspeaker is feeding gets back to the way adds to give with integrated that circuit was set up in large-sized box,which there is the capacity about 64 inch cubic which one side of a box has can to move in and out resemble a cylinder a position of a piston.
The work of switch press will cause the tone of voice that resemble very integrated loudspeaker circuit and battery touch set up on a piston , which there are 5 size inch pipes. For be born air push reaches and go out while a piston moves by don’t affect to build the frequency Resonance. The frequency of origin frequency circuit will begin to equal to the frequency Resonance of a box.