Search This Blog

Thursday, 23 April 2015

American & Hong Kong police siren

Today I suggest siren circuit. Another circuit is very interesting. It can mimic the sound of a American police car and Hong Kong police. By which we use transistors mainly. For is so easy to buy equipment and budget.
How does it work.
In a Figure 1 will see that include of two sound generator set. First sound generator consist of Q1, Q2, C2, C3 and R1-R4. Then a second sound generator will include of Q3, Q4, C5, C6 and R7-R10. The sound signal will Different as level of parts in circuit.

Zoro & JMM App Download / Install

Zoro App                                                                                          JMM App

Download this app for Your Android Mobile.
Login / Registration
zoro android app zoro bitcoin investment android app download zoro mobile app zoro app for your mobile how to download zoro android app zoro mobile app download zoro application zoro download li

jmm android app jmm bitcoin investment android app download jmm mobile app jmm app for your mobile how to download jmm android app jmm mobile app download jmm applicationjmm 

download links