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Posts tagged R4 2k4

op amp Compressor Circuit using IC1 4558

op amp Compressor Circuit using IC1 4558     IC1 4558 J1 Jumper J2 Jumper J3 Jumper Fet: Q1 2N5457 Q2 2N5457

Amplifiers Audio using MOSFET

Amplifiers Audio using MOSFET IRF350, TIP142 Circuit Audio amplifier has 15W of output power.

Radio fm digital

Radio fm digital IC1 TDA7000 IC2 LM7805 LM386 D1BB329, BB105 Radio fm digital IC1 TDA7000 IC2 LM7805 LM386 D1BB329, BB105 R1 47K R2 22K R3 100K R4 39K R5 10 R6,12 7,5K – Optionally R13-r21 15K – Optionally P1 10K Logarithmic potentiometer P2 100K Linear potentiometer C1 39pF Ceramic C2 47pF Ceramic C3 2,2nF Polyester […]

Range Meter Circuit

Radio Frequency Meter – Range Meter Circuit Schematic diagram of the signal strength meter – Range Meter Circuit using 1N4148

Simple Police Car Siren

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

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