Concentration test circuit (BC548)

2016-01-25 04:03  
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This article describes the Concentration test circuit (BC548). The content is very simple, very helpful. Components in this article can help you understand better understanding of this article. For example, in this article, you can go to find and buy these components:BC548.

This is the test concentration range, is ideal for a player to a game. Without a Net Amri alarm will be heard immediately.
Operation of the circuit is to use Q1, Q2, R1, R2, R3, R4, C1 and C2 together astable multi vibrator is a rectangular waveform generator (Square Wave).
It provides approximately 3 kHz frequency by a speaker with a piano sound So come out sharp tone.When the test loop to touch. Don copper wire. If not, tapping each of the copper wire loop tests with speakers blaring piano So do not come out.

Concentration test circuit

This is Stereo Synthesiser circuit by Transistor

 

 


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