Schematic Power Amplifier and Layout

Model Police Car Siren circuit using 9013, 9012 R1 ………….. 6,8K ohm R2 ………….. 2,2K ohm R3 ………….. 100K ohm R4 ………….. 15K ohm R5 ………….. 1K ohm R6 ………….. 470 ohm VR ………….. 1K ohm C1 ………….. 4,7uF – 10V C2 ………….. 0,068uF – 25V TR1 …………. P.U.T. MEU – 21 TR2 …………. FCS […]

Simple Police Car Siren using 9013, 9012 R1 ………….. 27K ohm R2 ………….. 68K ohm R3 ………….. 56K ohm R4 ………….. 470 ohm C1 ………….. 50uF – 12V C2 ………….. 0,018uF – 25V TR1 …………. FCS9013 TR2 …………. FCS9012 S1 ………….. Push Switch

op-amp Circuits op-amp Audio Mixer Circuits diagramwith NE5532 op-amp Circuits op-amp Circuits

Electronic harmonix electric circuit schematic diagram

5 Channel Portable Audio Mixer Audio Mixer schema using c945  

Audio Amplifier Circuit Using TA7283AP