Jul 23

Transistor-Buffered LED Bar Display Indicator

Led Vu Display7-schematic-diagram

Transistor-Buffered LED Bar Display Indicator Circuit Schematic Diagram

Led Vu Display7-circuit

Transistor-Buffered LED Bar Display Indicator Board and Components Layout

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 …………………………. 1N4148
  • D11,—D17 …………………………… LED

Transistor :

  • TR1,—TR13 …………………… FCS 9014