Tag Archive: LED

Jul 27

TRX6221 Stereo Graphic Equalizer

  Parts List Resistor : R1,R3,R5,R7,R9,R11 ……………………. 470 R13,R15,R17,R19 ……………………….. 470 R101,R103,R105 ………………………… 470 R107,R109,R111 ………………………….470 R113,R115,R117,R119 ………………….. 470 R2,R4,R6,R8,R10,R12 ………………… 470K R14,R16,R18,R20 ……………………… 470K R102,R104,R106 ………………………. 470K R108,R110,R12 …………………………. 470K R114,R116,R118,R120 ………………… 470K R21,R121,R22,R122 …………………… 100K R23,R123,R24,R124 ……………………. 10K R25,R125 …………………………………… 1K R26,R126 …………………………………… 1M R27,R127,R28,R128 …………………….. 330 R29 …………………………………………. 3,9K R30 …………………………………………. 3,3K …

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Jul 23

Automatic 12V Battery Charger

Parts List Resistor : R1,R4,R7 …………………………. 1K R2 ………………………………… 470 R3,R5 ……………………………. 47K R6 ………………………………… 220 R8 …………………………………… 1 Variable Resistor : VR1 ………………………………. 5K Capacitor : C1 ………………………. 220uF/16V Diode : D1 ……………………………. 1N 5402 D2,D4 ……………………….. 1N 4148 D3 ………………………………… LED D5 ……………………………. ZD 6,2V Transformator : T1 …………………. P  :  0-110V/220V T1 …

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Jul 23

5A 12V Lead Acid Automatic Battery Charger

Parts List Resistor : R1 …………………………………… 470 R2,R3,R4,R7 ………………………… 1K R5,R6 ……………………………….. 47K R8 ……………………………………. 220 Variable Resistor : VR1 ……………………………………. 5K Capacitor : C1 …………………………….. 100uF/25V Diode : D1,D2 ……………………………. 1N 4148 D3 ……………………………………… LED D4 …………………………………. ZD 6,2V D5,D6,D7,D8 …………………… 1N 4002 D9 …………………………. MDA 3502 – 4 Semiconductor : SCR1,SCR2,SCR3 ……………. EC …

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Jul 23

LED Bar VU Display Indicator

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

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  

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