Tag Archive: Amplifier

Jul 27

RC4739 Stereo Tape Head Playback Pre-Amplifier

Stereo Tape Head Playback Amplifier-schematic-diagram

Parts List Resistor : R1,R101 ……………………………… 5M6 R2,R102 ……………………………. 180K R3,R103,R5 …………………………… 1K R105,R12 ……………………………… 1K R4,R104 ……………………………… 100 R6,R106,R11,R111 ………………….. 4K7 R7,R107 ……………………………… 2M2 R8,R108 ……………………………… 27K R9,R109 ………………………………. 150 R10,R110 …………………………….. 22K R13 …………………………………….. 1M R14 …………………………………….. 82K Variable Resistor : VR1,VR101 ………………………….. 10K Capacitor : C1,C101,C4,C104 ……………… 0,1uF/50V C2,C102 ………………………… 470pF/25V C3,C103 …

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Jul 23

LED Bar VU Display Indicator

Led Vu Display9-schematic-diagram

Parts List Resistor : R1 ……………………………………. 1K R2 ……………………………………. 1M R3 …………………………………… 15K R4 …………………………………. 220K R5 …………………………………… 33K R6 ……………………………………. 470 R7 ……………………………………. 330 R8 ……………………………………. 220 R9 ……………………………………. 150 R10 …………………………………… 100 R11 …………………………………….. 56 R12 ……………………………………. 33 Variable Resistor : VR1 …………………………………… 50K Capacitor : C1,C2,C3 ………………………….. 2,2uF C4 …………………………………. 100uF Diode …

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Jul 23

Passive LED Bar VU Display

Led Vu Display7-schematic-diagram

Parts List Resistor : R1 ………………………………………. 1 R2 ……………………………………. 390 R3 ……………………………………. 330 R4 ……………………………………. 220 R5 ……………………………………. 150 R6 …………………………………….. 82 R7 ……………………………………… 33 Capacitor : C1,C2 ……………………………. 220uF Diode : D1,—D6 ……………………. 1N 4002 D7,—D12 …………………… 1N 4148 D13,—D18 …………….. LED Display  

Jul 23

Transistor-Buffered LED Bar Display Indicator

Led Vu Display7-schematic-diagram

Parts List Resistor : R1 ……………………………………. 5 R2 …………………………………… 47 R3 ………………………………….. 330 R4,R8,R12,R16 …………………… 4K7 R20,R24 ……………………………. 4K7 R5,R9,R13,R17 …………………… 47K R21,R25 ……………………………. 47K R6,R10,R14 ………………………… 150 R18,R22,R26 ……………………….. 150 R7,R11,R15 …………………………. 5K6 R19,R23,R27 ……………………….. 5K6 Variable Resistor : VR1 ……………………………………… 1K Capacitor : C1,C2 ………………………………. 220uF Diode : D1,D2 ……………………………. 1N 4002 D3,—D10 …

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Jul 23

Simple Transistor-Buffered LED Bar VU Display Indicator

Led Vu Display6-schematic-diagram

Parts List Resistor : R1,R2 …………………………….. 100 R3,R5,R7,R9 ……………………. 5K6 R11,R13,R15 …………………….. 5K6 R4,R6,R8,R10 …………………… 150 R12,R14,R16 …………………….. 150 Variable Resistor : VR1 …………………………………. 1K Capacitor : C1,C2 ………………………… 220uF Diode : D1,D2 ……………………… 1N 4002 D3,—-D9 ………………….. 1N 4148 D10,—D16 …………………….. LED Transistor : TR1,—TR7 ……………… FCS 9014

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