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Circuit drawing and Parts list
of a-stable multivibrator


Circuit drawing


Parts list

SymbolNameDescriptionNRemarks
IC1SN74LS04Inverter1Note1
IC278L053 terminals regulator1Note2
TR12SC1815Transistor1Note3
TR22SC18151
D11S1588Diode1Note4
D21S15881
D3
Red light emitting diode1Note5
D4
Green light emitting diode1
R11K ohm 1/8W
Carbon film resistor
1Note6
R21K ohm1
R32K ohm1
R41K ohm1
R52K ohm1
R61K ohm1
C1100FElectrolytic cpacitor (25V)1Note7
C20.01FMultilayer ceramic capacitor1Note8
C30.01FMultilayer ceramic capacitor1
C4100FElectrolytic cpacitor (25V)1Note7
C5470FElectrolytic cpacitor (10V)1
C6470FElectrolytic cpacitor (10V)1

IC socket14pin DIP1Note9

Universal PWB25 x 15 holes1Note10

Tin coated wireDiameter 0.32 mm single wire1mNote11

Twisted strand wireRed and black1mNote12

SpacerDiameter:3mm hight:5mm4Note13

NutDiameter:3mm4Note14

AC adapterOutput: 12V1Note15

AC adapter connector
1Note16